Page 3 – The DIY Life

Build a Smart Family Planner with a Raspberry Pi 5

Projects

Michael Klements

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March 10, 2025

Build a Smart Family Planner with a Raspberry Pi 5

Do You Struggle to Keep Track of Your Family’s Schedule?

Today, I’m going to show you how to build a simple, smart family planner using a Raspberry Pi 5, a touchscreen display, and a 3D-printed stand! It features a calendar, weather updates, and even plays back photos that sync from your family members’ phones, all powered by free software.

There are some commercial versions of these family planners available, but they’re quite expensive. On top of that, they often hide important features like photo playback behind monthly subscriptions, so there’s an ongoing cost to consider too.

So, let’s get started building our own!

Here’s my video of the build, read on for the write-up.

What You Need To Build Your Own Family Planner

Raspberry Pi 5 – Buy Here
MicroSD Card – Buy Here
SunFounder 10.1″ Touch Display – Buy Here
M2.5 x 12mm Button Head Screws – Buy Here
M6 x 50mm Hex Head Bolts – Buy Here
M6 x 40mm Hex Head Bolts – Buy Here
M6 Hex Nuts – Buy Here

Tool & Equipment Used:

USB-C Pencil Screwdriver – Buy Here
Bambulab X1C – Buy Here
Bambulab P1S – Buy Here

Some of the above parts are affiliate links. By purchasing products through the above links, you’ll be supporting my projects, at no additional cost to you.

Components Used To Build The Family Planner

As the brains behind the planner, I’m going to be using a Raspberry Pi 5. This is a little overkill for this project, but I intend to use the same device for a separate Home Assistant dashboard and some other tasks running in the background, so I’d like to have the extra power available. If you’re just using the planner functionality, then a Pi 3, 4, or even a Pi Zero 2 W will work too.

Next, we need a display, and for that, I’m going with this 10.1″ touch display by SunFounder. This is a 1280×800 IPS display with a 178-degree viewing angle, so it’s a good fit for this type of project.

This particular model is nice and easy to use because it’s designed specifically for the Pi 5, so it includes all of the necessary cables to connect the Pi to the display.

It also caters for the Pi 5’s 5V 5A power requirements, so you don’t need to run separate power supplies. It even includes speakers, so you can make use of audio prompts or voice feedback if you’d like to.

Because the display package includes the power supply and all of the cables we need, the only other item required is a microSD card for the operating system. I’m using a 32GB Sandisk Ultra card, which is more than enough for this project.

I’ve flashed Raspberry Pi OS onto the microSD card and configured it to connect to my home WiFi network. We can put that straight into the Pi and then mount the Pi onto the back of the display. This is done using little standoffs on adjustable rails, so you can mount any SBC with a square bolt pattern onto it.

The Pi is secured with three M2.5x18mm brass standoffs, and a clear acrylic cover plate goes over it.

I’ve added a small stick-on heatsink. I’m not sure if this is going to provide enough cooling to the Pi yet, but it’s easy to replace if needed. The acrylic cover has a place to mount a 40mm fan as well.

We can then plug in the HDMI cable, the power cable, and the USB cable for the touch display.

The board on the back of the display has buttons to control the display menu and speaker volume, as well as a power button that turns off the display and power to the Pi.

And that’s the hardware basically done!

Assembling the Family Planner’s Stand

SunFounder has a 3D-printable stand and an enclosure available for this display, but the stand doesn’t suit my needs, and I think the enclosure makes the display look quite bulky.

So I decided to design my own stand with an adjustable arm to position it exactly where I want it. The stand can also be hung from the underside of a surface like an overhead kitchen cabinet, which is how I’ll be using it long-term.

I’ve put the 3D print files up on Makerworld – Download print files

I printed the components in black and grey PETG. I used PETG rather than PLA to provide better long-term strength.

The stand goes together easily with just three M6x50mm bolts holding the joints together. These can be adjusted and tightened using the 3D-printed end caps.

It would actually be best to use two 40mm bolts and one 50mm bolt, but rather than buying two sets, I’ll cut the longer ones down or put caps on them afterwards.

The stand attaches to some brass standoffs on the display with four M2.5x12mm button head screws.

Setting Up The Family Planner Dashboard Software

The two software options that I like are Dakboard and MagicMirror.

Dakboard is much easier to set up and run, but it is a bit more limited than MagicMirror. MagicMirror is open-source, free, and has a large community behind it, so it has hundreds of available modules and a lot of flexibility. However, this also means that it takes much longer to install, set up, and run.

Dakboard is great if you want a simple calendar interface with a few basic add-ons. The base features are free to use, including up to two calendar integrations, a choice of predefined layouts, and integration with photos, weather, and a news feed.

Additional calendars, custom layouts, and more integrations are available through two paid tiers. While these aren’t particularly expensive, they defeat the purpose of building our own device. If you feel like the free version of Dakboard isn’t enough for you, then I’d encourage you to try MagicMirror as an alternative.

I’m going to use the free tier of Dakboard as I primarily want to have a shared family calendar available to view.

To get set up, create an account, and you can then work through setting up your predefine screen by running through these tabs.

First, choose a layout. I like the calendar on the left and the weather on the right.

Then, choose a background. There are options for integrations with Apple Photos, Google Photos, OneDrive, Dropbox and a host of other services too. You can even set a Youtube video as the background if you’d like to.

I’m using a shared Apple Photo album that is set up on my family members’ phones.

Shared albums are quite easy to make. You just go into the Photos app on your device, scroll down to shared albums, then hit create, give it a name and invite participants that can contribute photos to the album.

To make it accessible through Dakboard, you need to go to Shared Album Details, then make sure that Public Website is enabled and then press Share Link to get a link that you can copy over to Dakboard.

We’ve then got some calendar display settings that affect the way your calendar shows up. I’ll show you both the monthly and agenda views. I like the standard monthly view and the agenda view across 7 days. I also like including the event location and end times.

With the free tier, you can connect two calendars. You only really need one as we run a shared iCloud calendar across our family phones, and we can add, change or remove events from any device. There are also similar options available with Google Calendar.

Setting this up is also quite easy to do. First, you need a Calendar to link. You can use an existing calendar or create a new shared calendar with other family members.

Once you have created your calendar, click on the i alongside it to edit it. In this menu, you can enable it as a Public Calendar and then get a share link like we did with the Photo Album. We then copy this URL across to Dakboard.

I added a second calendar link to a Google Calendar showing the Australian public holidays, just as an illustration.

That’s the basic set-up done. You can also add the date and time, weather, news, a to-do list, and some custom text.

To view the screen, we then click on this link at the top.

Try playing around with different settings to customise the screen to your needs.

Once you’ve got it set up the way you like, we can link our Raspberry Pi to our account. Go to displays and devices, then create a new display. I’ve called mine Kitchen. Then go to this web address in the Pis browser to link it.

With that set up, your Pi should now be able to display your family planner dashboard.

Automating the Family Planner Functions

Rather than opening up the browser and then the link each time the Pi boots up, we can set it up to do this automatically.

First, we need to create an autostart directory by entering this command:

mkdir -p /home/pi/.config/autostart

Then make sure that you’re working in the directory by entering:

cd /home/pi/.config/autostart

Then, create a new text file in this location with these lines:

nano test.desktop

Add the following lines to the file and then close it by pressing Ctrl + O:

[Desktop Entry]
Type:Application
Exec=chromium --kiosk https://dakboard.com/display/uuid/<replace with your url>

Exec= → This is used in .desktop files to specify the command that should be executed when the application runs.
chromium → This launches the Chromium web browser.
--kiosk → Runs Chromium in kiosk mode, which means:
- It opens in full-screen without any toolbars, address bars, or buttons.
- The user cannot close or navigate away using normal controls.
https://dakboard.com/display/uuid/<replace with your url> → This is the URL that Chromium will open in kiosk mode.

Let’s reboot the Pi and see if it works.

Now, we’ve got a family planner running on the Pi, displaying our shared family calendar and cycling through the photos from a shared album on our phones.

The last thing you might want to do is set the Pi to shut down at night to save power and increase the lifespan of the display. You can do this by adding a shutdown line in crontab, which will turn the Pi off every night at a set time.

Enter this command to open up crontab:

sudo crontab -e

Then, add this line to the end of the file:

0 21 * * * /sbin/shutdown -H now

0 → Minute (Runs at minute 0)
21 → Hour (Runs at 21:00, or 9:00 PM)
* → Day of the month (Runs every day)
* → Month (Runs every month)
* → Day of the week (Runs on all days of the week)
/sbin/shutdown → Calls the system shutdown command
-H → Halts the system after shutting down (stops hardware but does not power off)
now → Executes the shutdown immediately when the cron job triggers

The Pi doesn’t have an easy way to wake up again, but I’ve worked around this by using a smart plug. The plug turns off 10 minutes after the Pi is scheduled to shut down and then turns on again in the morning, which in turn boots the Pi back up.

Final Thoughts On The Family Planner

Building a smart family planner with a Raspberry Pi 5 is a fun and practical project that helps keep everyone organised without relying on expensive commercial options. With a bit of DIY effort, you get a fully customisable dashboard that suits your family’s needs, whether it’s tracking schedules, displaying photos, or checking the weather. With Dakboard and MagicMirror, you can tailor the experience to fit exactly what you’re looking for.

Let me know what you think of this project in the comments section below, and let me know if you’ve tried MagicMirror or any other software that you’d recommend for a home planner!

Ultimate Raspberry Pi 5 Desktop Server with UPS, NVMe Drive & Stats Display

Michael Klements

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February 17, 2025

6

Ultimate Raspberry Pi 5 Desktop Server with UPS, NVMe Drive & Stats Display

Today I’m taking my Raspberry Pi 5 to the next level by building the ultimate desktop server. This build will feature an NVMe drive for fast storage, a UPS to keep it running during power cuts, and a real-time OLED display to show system stats. I’ll also be designing a custom 3D-printed case for it, complete with active cooling for overclocking.

Here’s my video of the build, read on for the write-up;

Components Used To Build The Ultimate Pi 5 Server

Raspberry Pi 5 – Buy Here
MicroSD Card – Buy Here
Raspberry Pi 5 Power Supply – Buy Here
18650 Batteries – Buy Here
SupTronics X1200 UPS – Buy Here
Pimoroni NVMe Base – Buy Here
(All shown NVMe bases will need a 50mm PCIe extension, or longer)
Pi 5 Ice Tower Cooler – Buy Here
SSD1306 I2C OLED Display – Buy Here
15cm Female to Female Jumper – Buy Here
M2.5 x 6mm Button Head Screws – Buy Here
M3 x 8mm Button Head Screws – Buy Here
M3 Brass Inserts (Set For Sides & Display) – Buy Here
M2.5x20mm Standoffs – Buy Here
M2.5x8mm Standoffs – Buy Here
2mm Clear Acrylic – Buy Here

Tool & Equipment Used:

Elegoo Centauri Carbon 3D Printer – Buy Here
USB-C Pencil Screwdriver – Buy Here
Fnirsi HS-02B Soldering Iron – Buy Here
Omtech Polar Laser Cutter – Buy Here

Ultimate Pi 5 Server Hardware

Let’s start out by taking a look at the hardware that I’m going to use.

The Pi 5 is the brain of the project. I’m using the 8GB variant, so it’s got 8GB of LPDDR4x RAM and a BCM2712 SOC that has 4 arm cores running at up to 2.4GHz.

For storage, I’m going to add a 512GB NVMe SSD which will be connected to the Pi’s PCIe port using an NVMe hat. I wanted to keep the design as generic as possible to accommodate a range of NVMe hats, so it will accommodate most NVMe hats that have a similar footprint to the Pi and don’t need the GPIO pins for power. All NVMe bases will need a 50mm PCIe extension, or longer to get up over the UPS.

The reason they can’t use the GPIO pins is that between the Pi and NVMe hat, I’m going to install a UPS hat. I’m using the SupTronics X1200 UPS that is powered by a USB C power supply like the Pi. It then passes power through to the Pi using a range of pogo pins that make contact with the test points and GPIO pins underneath it. It stores power in two 18650 cells which can be used to power the Pi for up to 2 hours in the event of a power outage.

Because this hat has so many contact points, it has to be installed underneath the Pi, which means that the NVMe hat needs to be installed either on top of the Pi or below the UPS.

I’m going to go with below the UPS so that I can still use an Ice Tower cooler on the CPU for cooling. This will provide a lot of additional cooling headroom for overclocking.

So that’s my Pi mini server stack, now I need to get the case designed for it.

Designing The Pi 5 Desktop Server Enclosure

Like my previous projects, I modelled this case in Fusion 360. I refined my previous Pi 4 case design to make assembly smoother and to accommodate the increased stack height. The Pi 5 sits on top, with the UPS shield directly underneath and the NVMe shield below that, connected via a long PCIe ribbon cable.

For the side panels, I’m still using clear acrylic, giving it a sleek look while keeping the internals visible but the acrylic is now recessed into the side of the case so that the acrylic edges aren’t visible. The panels screw into place using M3 screws into brass inserts, making the whole build sturdy and easy to disassemble if needed.

I added a button adaptor to the back to press the Power button on the UPS and I’ve added some design features to the sides.

This case also features an I2C OLED display which will be used to display some stats for the Pi 5 and UPS.

With the case design complete, we now need to print out the components.

3D Printing The Components Using The Elegoo Centauri Carbon

To print out the case components, Elegoo have sent me their new Centauri Carbon core XY 3D printer to try out.

The Centauri Carbon is their first FDM 3D printer with a CoreXY motion system that provides much better precision, stability and speed. It comes fully assembled and ready to print so you don’t need to tinker with levelling the print bed, adjusting belt tensions or squaring up the gantry.

It has a direct drive extruder and a fully enclosed print volume, which means that it can tackle a wide range of print materials.It also includes automatic bed levelling and a magnetic PEI textured build plate.

It does not yet support multicolour printing, filament is mounted on the side with a filament runout sensor above it.

Prints can be started locally using the USB port and full-colour touchscreen or they can be sent over WiFi.

This printer is aimed at being a low-cost Core XY option but Elegoo haven’t cut corners on quality. It still feels like a well-built machine and even has high-end features like a glass door and top cover.

It can tackle a 15-minute benchy and gets pretty good results for the speed.

I printed out a couple of other test prints and aside from a little under-extrusion on the scraper which can be resolved by dialing in the filament settings, I was quite impressed by the results. These were all out-of-the-box prints with no setup or tinkering and I didn’t have a single print failure.

I then prepared my Pi server case print in Elegoo slicer to be printed from PLA with a 0.16mm layer height. The components all easily fit onto the 256mm square build plate so they can be printed in one go.

I’ve left all of the settings on their defaults, I’ve only added some supports to the overhung areas and I’ve made some changes to the fan grill settings to get the infill pattern to use as the fan mesh.

All up the print should take 2 hours and 45 minutes and it’ll only use 75g of filament.

The print can then be sent to the printer over WiFi or it can be started locally from a connected USB drive.

I’m using a metallic grey-coloured filament for all of the case components, hopefully, that looks good with the clear acrylic side panels.

With start-up and levelling, the print took a little under 3 hours to complete but I’m really happy with the quality. The finish is smooth and the layer lines are barely visible. There is some very minor ringing around the button and display cutouts but you have to look hard under bright light to see this.

Finishing Off The Pi 5 Desktop Server Case

Next, let’s make up the side panels from some 2mm laser-cut acrylic. These are slightly undersized so that they fit into the recess that has been designed onto each side of the case.

I initially made these up without a Pi logo on the side but I decided that the logo outline would look quite nice so I added it in afterwards.

After the supports are removed, to finish the case off we need to add some M3 threaded brass inserts to the corners to hold the side panels and to the inside of the case to hold the display. These are M3x4.4mm inserts and they’re 6mm deep for the side panels and 3mm deep for the display.

These are melted into place using a soldering iron with a pointed tip. I’m using the Fnirsi HS-02B which has a nice pointed tip for these style inserts and it runs off a USB C power supply.

I’ve already connected the ribbon cable up to the display’s pins to plug into the Pi’s GPIO pins. Remember to take note of the terminal labels as they’re hidden once the display is installed.

The display slides in under the retaining clips in the body of the case and a single screw and bracket secure it.

Assembling The Raspberry Pi Stack

Now we can start assembling the Pi stack to mount into the case.

First, let’s get the UPS attached to the Pi. Rather than using the included screws, I’m going to use the standoffs from the Ice Tower cooler. I’ve trimmed down their threads slightly because we’ll also need to screw another set of standoffs into the bottom of the UPS hat. My standoffs had 6mm threads, which is their usual length, but you can sometimes get standoffs with a 3mm thread length.

Below the UPS I’m using a set of 20mm standoffs that I’ve also trimmed the thread down on.

Next, we can install the Ice Tower cooler on top of the Pi. I’m going to take the fan off the heatsink as we’ll move this onto the side panel.

If you’ve got thermal paste, this works better than a cooling pad between the CPU and heatsink. If not, or if you plan on removing the cooler frequently then use the included thermal pad.

To finish off the stack, let’s install our NVME drive and then install the hat underneath the Pi. Make sure that you flash your OS onto the NVMe drive before installing it as well. I’m using Raspberry Pi OS Bookworm on it. I’m installing the desktop version for now but it’ll be running an installation of TrueNAS on it long term.

The hat closes off access to the batteries so we need to install those first and then be careful not to short out contacts on the UPS or press the power button.

Better yet, put some thin strips of film between the battery terminals and UPS contacts and you can pull them out before fitting the side panels to ensure the stack remains unpowered.

The NVMe hat is then held in place with some 8mm standoffs to give the drive some room for airflow at the bottom of the case.

Installing The Stack In The Case

The button adaptor goes into the back of the case and we can then install the stack in the case. This is held in place with four M2.5 screws through the bottom of the case.

We can then plug the display into the power and I2C pins on the Pi.

Next, let’s mount the Ice Tower fan onto the side panel with the fan grill.

I’ve pressed some M3 nuts into the pockets on the back of the fan and some M3x16mm screws hold it in place.

Plug the fan into the fan port before closing the case up and remember to pull out the film on the battery terminals.

The side panels are each held in place with four M3x8mm button head screws. I’ve got a small 3D-printed accent piece around each screw head.

On the side with the ports, I’ve got another 3D-printed accent piece that is held in place with some super glue.

That’s the case complete and the Pi ready for it’s first boot.

Installing The OLED Stats Display Script

All that is left to do is install the modified stats script which I’ve upgraded for this use case.

The UPSMonitor.py script cycles between two screens — one showing system stats like temperature, CPU load and the IP address, and another dedicated to the UPS status, displaying the power state and battery level at a glance.

Final Thoughts On My Pi 5 Desktop Server

With the UPS and NVMe drive, this Pi 5 build is now fast and reliable. The clear acrylic design, optimised cooling, and OLED display make it functional and great to look at.

What do you think of this build and case design? Let me know in the comments if you’d add any features or change anything up!

Ultimate Pi 5 Desktop Server Running Plugged In

The modified UPS stats script is available to install from my GitHub repository and you can download the 3D printing files to print your own case from my Etsy store.

The Elegoo Centauri Carbon is available for preorder from the 17th of February:

Preorder The Elegoo Centauri Carbon – https://elegoo.sjv.io/Z6yJXR
US: https://elegoo.sjv.io/3JdXjv
EU: https://elegoo.sjv.io/vPZ1yA
CA: https://elegoo.sjv.io/YRy41O
UK: https://elegoo.sjv.io/7aJLy3
AU: https://elegoo.sjv.io/LKZoxa
JP: https://elegoo.sjv.io/xLNX2k

EcoFlow Delta 3 Plus Portable Power Station

Product Reviews

Michael Klements

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February 12, 2025

0

Today we’re going to be taking a look at the EcoFlow Delta 3 Plus portable power station. This is the latest iteration of their Delta series, including a 1024Wh battery and 1800W pure sine wave inverter alongside a host of other exciting features.

If you don’t know what a portable power station is, it is an all-in-one battery, charger, inverter and DC power supply in a compact and portable package. They’re great for taking care of your power needs on days out, at work sites, in the event of a power outage or on camping trips.

EcoFlow have sent me the Delta 3 Plus to try out, so let’s get it unboxed and then we’ll take a look at what it has to offer.

Here’s my video review of the Delta 3 Plus, read on for the written review;

Where To Buy The EcoFlow Delta 3 Plus

EcoFlow Delta 3 Plus (Amazon US) – Buy Here
EcoFlow Delta 3 Plus (Amazon UK) – Buy Here
EcoFlow Delta 3 Plus (Web Store) – Buy Here

Equipment Used For Testing

FNIRSI Multimeter & Oscilloscope – Buy Here
Main Power Meter – Buy Here

Unboxing And First Look At The Delta 3 Plus

In the box, we’ve got the Delta 3 Plus Power Station, a quick start guide and three cables;

A mains power cable
A car charger cable
A barrel jack cable

Unlike some other power stations, the AC charger is built-in, so you don’t need to carry a charging brick along too, so you don’t need any more than the power station and a cable or two to connect it up.

Inside the Delta 3 Plus is a 1024Wh LiFePO4 (Lithium Iron Phosphate) battery which is good for over 4000 full power cycles. If you used the full battery capacity every day, it would last almost 10 years and still have 80% of its original capacity.

The battery is also protected by a 3-layer system;

The first is an IP65 battery enclosure which protects it against dust and splashes.
The second is a smart battery management system that provides real-time monitoring and regulation.
The third is a thermal runaway and fire propagation protection layer.

The battery is expandable up to 5kWh by adding compatible battery packs through the battery port at the back.

The Delta 3 Plus measures 398mm x 202mm x 284mm for a total volume of 22.6L, making it really compact for the features and battery capacity that it includes. It is about 5% smaller than the previous generation Delta 2 and packs in more powerful charging options. It is also relatively lightweight at 12.5kg.

EcoFlow Delta 3 Plus Dimensions And Volume

Charging Options

To charge the Delta 3 Plus up, you’ve got a couple of DC and AC options and they’re all under this newly designed cover on the back, which I quite like.

Using the built-in mains charger, you can charge the EcoFlow Delta 3 Plus at up to 1500W which will take it up to 80% charged in under 40 minutes and fully charged in under an hour – something that was previously only available on their River series.

So even if you’ve forgotten to charge your Power Station the day before your trip, you should still have enough time to charge it up while you prepare your things before heading out.

It has dual 500W MPPT charge controllers for up to 1000W of solar charging power. This will take the Delta 3 Plus up to 80% in under an hour, which is better than most of this size. The Delta 3 Plus doesn’t come with a solar charging cable, so you’ll need to buy this separately.

These DC ports can also handle up to 800W from your vehicle’s alternator to charge it up while you drive. Using the alternator input you can have the power station fully charged in a 2-hour drive.

You can also do a combination of charging inputs up to a total of 1500W. So if you have 1000W of solar input, you can increase the total charging input to 1500W by adding 500W of mains power too.

The cover on the back also stows away into the unit to get it out of the way, which is a nice design feature.

To keep the battery and inverter cool, there are some vents and a cooling fan at the top of the Delta 3 Plus. The fan isn’t always on though, it’s PWM controlled and only comes on under higher loads, particularly when charging or when supplying a high AC load, so it shouldn’t be very audible most of the time.

Power Outlet Options

To use the stored power, the Delta 3 Plus has a range of ports and outlets. The 4 AC outlets are powered by an 1800W pure sine wave inverter which can handle a surge of up to 3600W. Like with some other EcoFlow products, using their X-Boost technology, it can power some devices up to 2600W continuously. We’ll take a look at this a bit later on.

Above the AC outlets, it’s also got 4 USB ports, 2 USB type A ports that can do fast charging up to 36W and 2 USB type C ports that can do PD up to 140W.

And on the back under the charging ports, it’s got 3 DC outlets, 1 car power outlet which can do 12V at up to 10A and two barrel jack outlets which also do 12V but at up to 3A.

Other Features On The Delta 3 Plus

The display on the front of the Delta 3 Plus is similar to that on other EcoFlow models. It gives you a lot of information on the status of the device.

On the left, it shows you the total power input or charging power in watts, in the centre is the battery capacity within a power draw animation ring, on the right is the total power draw in watts and at the top is the time to fully charged or empty depending on whether the battery is being charged or drained.

Other small indicator icons come up when certain settings are activated.

The display goes to sleep automatically after 5 minutes by default but can be woken up again by pressing the power button. You can also change the sleep duration using the app.

Above the display are three buttons. The centre one turns the power on or off and puts the display into sleep or wake mode. The left and right buttons turn the AC and USB supplies on or off respectively. The button for the DC supply is at the back above the DC ports.

Now that we’ve had a look at the features of the Delta 3 Plus, let’s try to do some tests on it.

Testing Whether It Can Be Fully Charged In Under 1 Hour

It has currently got a 30% charge, so let’s get it drained completely and we can then test whether we can achieve an 80% charge in 40 minutes and a full charge in under an hour.

I’m going to hook up a small 1800w fan heater to it to drain completely.

The Delta 3 Plus stops the AC outlet when the battery is depleted to prevent over-discharge, but the battery management system and display remain active a little while longer.

Next, I connected it up to the mains supply and timed how long it took to charge to 100% capacity. After a few seconds, the display indicated that it would be fully charged in 1hr. I checked in at 15 minutes in and the battery was 33% charged and the display indicated 35 minutes remaining, so it was on track to complete the charge in under an hour.

After 40 minutes, the battery was at 77% and after an hour it was at 94%. It was fully charged after 1 hour and 8 minutes.

So a bit short of the under-an-hour claim but it’s worth noting that this was in a workshop in summer in Australia so the ambient temperature is around 29 degrees, which reduced the charging speed a bit. A big part of fast charging a battery is keeping it cool, so if the ambient temperature is lower then you’ll be able to charge it faster.

Powering Some Other AC Devices

Now let’s plug some devices into it to test the AC supply.

I’ve already shown the Delta 3 Plus powering an 1800W heater, but you couldn’t hear the Delta’s fan over the sound of the heater. So if I move the heater to another room and use an extension we can see how quiet it runs.

At full load, the fan ramps up almost immediately but it’s still fairly quiet, it stays at around 48db right within 10cm.

Next, I’m going to run my two 3D printers to print a vortex cube. These each draw about 500W when heating up and settle on an average of under 100W once printing.

They ran for about half an hour to print both cube components and at the end, the Delta 3 Plus was at 71% capacity.

Delta 3 Plus Charge State After Printing

As I said earlier, the Delta 3 Plus is equipped with an 1800W inverter, but using EcoFlow’s X-Boost technology, they claim that you can run most appliances up to 2600W without overloading it. So I’m going to try to power this electric BBQ that draws a little over 2200W when turned all the way up.

So the Delta 3 Plus is able to power the BBQ when it is turned all the way up, but you’ll notice that the power output is still only around 1800W.

X-Boost is able to power the BBQ on the highest setting by still only outputting the inverters maximum continuous power of 1800W. It does this by intelligently reducing the output voltage so that the inverter is not being overloaded but is still powering the appliance. Now obviously this is going to lead to a slight reduction in the performance of the appliance, but it does at least give you a way to use it. The BBQ will likely not get hot as quickly as it would on the full 2200W but it’s at least usable.

There are some limitations with X-Boost. Because it’s lowering the output voltage, which is common to all outlets, you can’t use it if you’ve got multiple devices connected to it.

You can also turn X-Boost on and off in the settings menu in the app if this is something you don’t want to use. It’s off by default.

Testing The DC Power Options

Next, I tried the DC output on a small fridge that you would use for camping. That ran well as you’d expect and the display indicated that it could power the fridge for around 13.5 hours on the remaining 57% charge. It’ll likely land up being a lot longer than this as the fridge will draw much less power once it has cooled down to the target temperature.

I then tried the USB C port to charge my MacBook and it indicated that it was charging at 50-60W because it was over 80% charged already. I added my phone and that increased the draw by another 7W but is still way under the rated 140W output for these USB C ports.

Testing The UPS Functionality And Changeover Time

One of the features I’m most interested in is the UPS functionality. My 3D printers and a desktop milling machine often run for long periods and a single short power interruption can cause failed prints or projects. So I’d like to put the Delta 3 Plus in line with their mains supply so that they’re kept powered through any interruptions.

The UPS on the Delta 3 Plus has a 10ms change over time, which is really fast for these style power stations. Most others have an advertised 20-30ms change over time so this is 2-3 times faster. Its 1kWh capacity will also be able to keep both printers running for 4-5 hours in the case of a longer interruption – which is really good for a UPS.

So I’ve got both 3D printers running off the AC outlets. I’ve used an adaptor because the printer’s power cables are quite short.

There are two important metrics to look at here. The first is the transfer or change-over time of the UPS, which in this case should be under 10ms and the second is the hold time of the device being powered. Because most electronic devices have power supplies with capacitors in them, they can usually handle a total power loss of a couple of milliseconds without the device turning off.

Both 3D printers are now running a print and are being powered through the Delta 3 Plus. Let’s pull out the mains supply to the Delta 3 Plus and see whether the printers notice it.

So both of the printers are still running with the mains power now turned off and they didn’t seem to mind the interruption.

When the power comes back on, the Delta 3 Plus changes back over to the mains supply.

I also connected a handheld oscilloscope to the AC output so that we could visualise the interruption to the sine wave to see what the transfer time is.

UPS Changeover Time Measured On Oscilloscope

The interruption shows up nicely. We have 10 millisecond divisions and the flat line starts a tiny bit after the division starts and the sine wave starts again where the division ends. So the transfer time is a tiny bit faster than 10 milliseconds.

Another nice feature if you’re using it as a UPS long-term is to limit the maximum and minimum depth of charge, which is done through the app.

Limiting the maximum and minimum charge depth improves the longevity of the battery as you aren’t putting as much strain on it for each cycle.

Using The EcoFlow App With The Delta 3 Plus

As I’ve shown a couple of times already, you can also connect the Delta 3 Plus to your smartphone through Bluetooth or WiFi to monitor and control it as well as change its settings.

From the main screen, you can see the time remaining to fully charged or empty depending on whether the battery is being used or charged, you can also see the current rates of charge and discharge in watts of each individual port below that. You can turn the AC or DC inputs or outputs on or off remotely through the app as well. So you’ve got a lot of control through the app which is useful if it’s in a hard-to-reach place.

You can also access the device settings which allows you to do things like turn X-Boost on or off, set timeouts, manage charge and discharge levels and even reduce the maximum power that the power station can draw from mains when charging.

So if we turn it down to a maximum of 100W then it limits the mains charger draw to 100W.

This is useful if you’re at a campsite or charging it from another low-capacity power source. Without this, it’ll just trip or overload the device that you’re trying to charge it from.

It also has two presets, one for optimal battery life at 500W and one to keep the unit as quiet as possible during charging, limited to 200W.

It’s got similar options for the DC inputs as well, both set as current limits.

Final Thoughts On The Delta 3 Plus

Overall I’m really impressed with the Delta 3 Plus. Being a third-generation product, it is well-refined and has a good set of features. They’ve also made some nice ease-of-use adjustments over the original like moving the outlets to the front, adding the cover over the ports at the back and improving charging rates.

With the lithium iron phosphate battery, it should also last you around 8-10 years even with moderate use.

If you’re in Australia you can buy the EcoFlow Delta 3 Plus through their distribution partners like Anaconda, Total Tools, Autobarn, Harvey Norman or online from Amazon, eBay or from the EcoFlow website. The Delta 3 Plus comes with a 5-year warranty.

Let me know what you think of it in the comments section below and if there is anything else you’d like to see me test on it.

Raspberry Pi Drag Race: Pi 1 to Pi 5 – Performance Comparison

Michael Klements

-

January 22, 2025

6

Raspberry Pi Drag Race: Pi 1 to Pi 5 – Performance Comparison

Today we’re going to be taking a look at what almost 13 years of development has done for the Raspberry Pi. I have one of each generation of Pi from the original Pi that was launched in 2012 through to the Pi 5 which was released just over a year ago.

We’ll take a look at what has changed between each generation and how their performance and power consumption has improved by running some tests on them.

Here’s my video of the testing process and results, read on for the write-up;

Purchase Links For Components Used In These Tests

Raspberry Pi 5 – Buy Here
Raspberry Pi 4 – Buy Here
Pi 5 Ice Tower Cooler – Buy Here
Pi 5 Power Supply – Buy Here
USB C to MicroUSB Adaptor – Buy Here
Sandisk Ultra MicroSD Card – Buy Here

Equipment Used

Video Capture Box – Buy Here
Mains Power Meter – Buy Here

Some of the above parts are affiliate links. By purchasing products through the above links, you’ll be supporting this channel, at no additional cost to you.

Hardware Changes Through Each Generation

Raspberry Pi 1

This is the original Raspberry Pi, which was launched in February 2012.

This Pi has a Broadcom BCM2835 SOC which features a single ARM1176JZF-S core running at 700MHz along with a VideoCore IV GPU. It has 512 MB of DDR RAM.

In terms of connectivity, it only has 100Mb networking and 2 x USB 2.0 ports. Video output is 1080P through a full-size HDMI port or analogue video out through a composite video connector and audio output is provided through a 3.5mm audio jack. It doesn’t have any WiFi or Bluetooth connectivity but it does have some of the features that we still have on more recent models like DSI and CSI ports, a full size SD card reader for the operating system and GPIO pins, although only 26 of them at this stage.

Power is supplied through a micro USB port and it is rated for 5V and 700mA.

It was priced at $35 – which at the time was incredibly cheap for what was essentially a palm-sized computer.

Raspberry Pi 2

The Raspberry Pi 2 was launched 3 years later, in February 2015 and this Pi looked quite different to the original and similar to the Pi’s we know today.

The Pi 2 has a significantly better processor than the original. The Broadcom BCM2836 SOC has 4 Cortex-A7 cores running at 900 MHz and it retained the same VideoCore IV GPU. RAM was also bumped up to 1GB.

It added another 2 x USB 2.0 ports alongside the 100Mb Ethernet port. The composite video port disappeared and the analogue video output was moved into the audio jack.

The GPIO pins were increased to 40 pins which has followed the same pin layout since – which has really helped in maintaining compatibility with hats and accessories. The SD card reader was also changed to a microSD card reader.

The power circuitry was bumped up to 800mA to accommodate the more powerful CPU.

Raspberry Pi 3

The Raspberry Pi 3 was launched just a year later, in February 2016.

The Pi 3’s new Broadcom BCM2837 SOC retained the same 4-core architecture but these were changed to 64-bit Cortex A53 cores running at 1.2Ghz.

RAM was kept at 1GB but was now DDR2.

There was no change to the USB or Ethernet connectivity on the original Pi 3 but we did see WiFi and Bluetooth added for the first time. WiFi was single band 2.4GHz and we had Bluetooth 4.1.

The version that I have is actually the 3B+, which was launched a little later. The main improvements over the original Pi 3 were a 0.2GHz boost to the clock speed and the upgrade to Gigabit networking with PoE (Power over Ethernet) support and dual-band WiFi.

The power circuitry was again improved, still running at 5V but now up to 1.34A, which was almost double the Pi 2.

Raspberry Pi 4

Next came the Pi 4 in June 2019. This Pi came at one of the worst times for global manufacturing and was notoriously difficult to get hold of due to the impact of COVID on the global supply chain. Quite ironically, this hard-to-get Pi is the one that I’ve got the most of, mainly due to my water-cooled Pi cluster build.

The Pi 4 has a Broadcom BCM2711 SOC with 4 Cortex-A72 cores running at 1.5GHz. So again a slight clock speed increase over the Pi 3 but still retaining 4 cores. It also includes a bump up to a VideoCore VI GPU.

This was the first model to feature different RAM configurations. It was originally available in 1, 2, 4GB variants featuring LPDDR4 RAM and in March of 2020 an 8GB variant was added to the linup as well. This obviously resulted in a few different price points but impressively they still managed to keep a $35 offering 7 years after the launch of the first Pi.

It retained the same form factor as the Pi 3 but with the network and Ethernet ports switched around. Notably, two of the USB ports were upgraded to USB 3.0, networking was now gigabit ethernet like the 3B+, WiFi was dual-band and it had Bluetooth 5.0.

They also changed the single full-size HDMI port to two micro HDMI ports. Most people I know don’t like this change and find it annoying to have to use adaptors to work with common displays and these micro HDMI ports are prone to breaking when they are used often. I think general hobbyists and makers would prefer this to still be a single full-size port but Pi’s are often used in commercial display applications so I guess that’s why they went with this dual micro HDMI configuration.

The power circuit was actually reduced in this model, from 1.34 down to 1.25A and the port was changed to USB C.

Raspberry Pi 5

Lastly and most recently we have the Pi 5 which was launched in October 2023.

This Pi features a Broadcom BCM2712 SOC with 4 Cortex A76 cores running at a significantly faster 2.4Ghz and a VideoCore VII GPU running at 800MHz.

So quite a bump up in CPU and GPU performance.

It is offered in 3 RAM configurations but the drop in a 1GB offering means that they’re no longer available at the $35 price point. There is a fairly significant increase in price up to $50 for the base 2GB variant.

Some other notable changes are the inclusion of a PCIe port which enables IO expansion and a much improved power circuit. The PCIe port is quite commonly used to add an NVMe SSD instead of a microSD card for the operating system.

The power circuit was upgraded to handle the PCIe port addition, now stepping up to 5V at up to 5A, along with a power button for the first time.

The change in power supply requirements to 5V and 5A is a bit annoying as most power delivery capable supplies cap out 2.5 or 3A at 5V. It would have been more universal to require a 9V 3A supply to meet the Pis power requirements. I assume they steered away from this because the Pi’s circuitry runs at 5V and 3.3V and they would have then needed to add another onboard DC-DC converter which increases complexity, size and potentially the cost, it would also have made it a bit less efficient. But this does mean that you most likely need to buy a USB C power supply that has been purpose-built for the Pi 5.

The Pi 5 is also the first Pi to have its own dedicated fan socket.

So that’s a summary of the hardware changes, now let’s boot them up and take a look at their performance.

Testing The Performance Of Each Generation Of Pi

To compare the performance between the Pi’s, I’m going to run the following tests.

I’m going to attempt to playback a 1080P YouTube video in the browser, although I expect we’ll have problems with this up to the Pi 4.
We’ll then run a Sysbench CPU benchmark which I’ll do both for a single-core and multicore.
Then we’ll run a GLMark2 GPU benchmark.
Then test the storage speed using James Chambers Pi Benchmark script.
Then we’ll run an iPerf3 Network Speed test.
Lastly, we’ll look at Power Consumption, both at idle and with the CPU maxed out.
And then use that data to determine each Pi’s Performance per Watt.

To keep things as consistent as possible I’m going to be running the latest available version of Pi OS from Raspberry Pi Imager for each Pi. I was pleasantly surprised to find that you can still flash an OS image for the original Pi in their latest version of Imager.

I’ll be testing them all running on a 32GB Sandisk Ultra microSD card. I’ll also be using an Ice Tower cooler on each to ensure they don’t run anywhere near thermal throttling.

1080P YouTube Video Playback

I started with the original Pi and its first boot and setup process was a lesson in patience. It took me the best part of two hours to get the first boot complete, the Pi updated and the testing utilities installed but I got there in the end.

Even once set up it takes about 8 minutes to boot up to the desktop and the CPU stays pegged at 100% for another two to three minutes before dropping down to about 20% at idle.

The original Pi refused to open up the browser, so that’s where my YouTube video playback test ended.

The Pi 2 managed to open the browser and actually started playing back a 1080P video, which was surprising, but playback was terrible. It dropped pretty much all of the frames both in the window and fullscreen.

The Pi 3 played video back noticeably better than the Pi 2, but it’s still quite a long way away from being usable and still drops a lot of frames.

The Pi 4 handled 1080P video reasonably well. It had some initial trouble but then settled down. Fullscreen is also a bit choppy but is also usable.

The Pi 5 handled 1080P playback well without any significant issues both in the window and fullscreen.

Sysbench CPU Benchmark

Next was the Sysbench CPU benchmark. I ran three tests on each and averaged the scores and I did this for both single-core and multicore.

In single core, the Pi 1 managed a rather dismal score of 68, the Pi 2 got a bit more than double this score but the real step up was with the Pi 3 which managed 18 times higher than the Pi 2. The Pi 4 and Pi 5 also offered good improvements on the previous generations.

Similarly in multicore, the Pi 3 scored over 18 times the score of the Pi2 and the Pi 4 and 5 provided good improvements on the Pi 3’s score.

Comparing the combined multicore score of the Pi 5 to what the single core on the Pi 1 can do, the Pi 5 is a little over 600 times faster.

GLmark2 GPU Benchmark

Next, I tried running a GLMark2 GPU benchmark on them. I used the GLMark2-es2-wayland version which is designed for OpenGL ES so that the Pi 1 was supported.

I was surprised that the Pi 1 was even able to run GLMark2 – it did complete the benchmark, although the score wasn’t all that impressive.

These results really show how the Pi’s GPU has improved in the last two generations. Prior to these tests, I had never seen a score below 100 and the Pi 1, 2 and 3 managed to fall short of triple digits. Pi 5 scored over 2.5 times higher than the Pi 4.

Storage Speed Test

Next was the storage speed test using James Chambers Pi Benchmarks script. The bus speed has increased over the years from 25MHz on the Pi 1 to 100MHz on the Pi 5, so I expect we’ll see these reflected in the benchmark scores.

The storage speed test’s results aren’t as dramatic as the CPU and GPU results but show a steady improvement between generations. The Pi 3 did a bit worse than the Pi 2 but this small difference is likely just due to variability in the tests.

iPerf Network Speed Test

Next, I ran the iPerf network speed test on each.

The Pi 1 doesn’t quite get close to its theoretical 100Mbps but the Pi 2 does. The Pi 3 B+ although having Gigabit Ethernet is limited by this running over USB 2.0 which only has a theoretical maximum of 300MBps, so it came quite close. Both the Pi 4 and 5 expectedly come close to theoretical Gigabit speeds.

Power Consumption Test

Lastly, I tested the power consumption of each Pi at idle and under load.

I used the same Pi 5 power adaptor to test all of the Pis to keep things consistent and I just used a USB C to micro USB adaptor for the Pi 1, 2 and 3.

The idle results were closer than I expected. The Pi 2 had the lowest idle power draw and the Pi 5 the highest, but all were within a watt or two of each other. At full load, you can see the increase in CPU power draw more physical power with the Pi 5 drawing almost three times the Pi 1 and Pi 2.

Converted to performance per watt using the Sysbench results, we can again see how much better the Pi 4 and 5 are over the Pi 1 and 2. There is a clear improvement in the performance that each generation of Pi is able to get per watt of power, which is essentially its efficiency. Although the Pi 5 draws more power than the Pi 1 under full load, you’re getting almost 200 times more power out of it per watt.

Final Thoughts On The Drag Race And Future Pis

I really enjoyed working through this project to see how much Pi’s have changed over the years, particularly in terms of performance. I still remember being amazed at the size and price of the original Pi when it came out and it’s great that they’re still fully supported and can still be used for projects – albeit with less CPU-intensive projects.

Let me know what you think has been the biggest improvement to the Pi over the years and what you’d still like to see added to future models in the comments section below.

I personally really like the addition of the PCIe port on the Pi 5 and I’d like to see 2.5Gb networking and a DisplayPort or USB C with DisplayPort added to a future generation of Pi.

N97 vs N100 vs Raspberry Pi 5: Which Is Right For You?

Michael Klements

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January 8, 2025

3

N97 vs N100 vs Raspberry Pi 5: Which Is Right For You?

I recently did some testing to compare the performance and features of an N100 mini PC as a replacement for a Raspberry Pi 5. In response to that test, quite a few people asked how an N97 PC compares to a Pi 5 or N100 PC. So Today I’ve got a NucBox G5, which is a tiny N97-based mini PC from GMKtec to try out and add to the comparison.

Here’s my video of the test and results, read on for the write-up;

Purchase Links For The Computers and Parts Used For Testing

GMKtec NucBox G5 – Buy Here
Beelink Mini S12 Pro N100 Mini PC – Buy Here
Raspberry Pi 5 – Buy Here
Pi 5 Active Cooler – Buy Here
Pi 5 Power Supply – Buy Here
Pimoroni NVMe Base – Buy Here
Lexar NVMe SSD – Buy Here

Equipment Used

Video Capture Box – Buy Here
Mains Power Meter – Buy Here

Hardware and Features of Each Computer

Like the N100 PC, the N97-based PC is a mini PC built around Intel’s Alder Lake N family of processors, and in this case the N97 CPU. Despite the naming conversion which may suggest that the N100 CPU is the more powerful of the two, the N97 is actually the more powerful and more expensive CPU.

The N97 CPU package is a little over double the price and has double the thermal design power or TDP. It has the same number of cores as the N100 CPU but they can run up to 3.6GHz instead of the 3.4GHz that the N100’s cores can do.

Despite the N97 CPU package being listed as more expensive than the N100 CPU, there are quite a few N97-based mini PCs available for a very similar price.

The Beelink Mini S12 Pro N100 PC that I used previously cost me $159 and there are a number of N97 options available in the $150-$160 range. The NucBox G5 cost me $158 and is currently listed for $150 on their website.

So the three options are very similarly priced once we’ve added some basic accessories to the Pi 5 to match the PC’s inclusions;

8GB Raspberry Pi 5 – $80
Official Active Cooler – $5
Official Power Supply – $12
Pimoroni NVMe Base – $15
NVMe SSD – $48

The fully kitted-out Pi 5 (without a case) comes to a total of $160.

In terms of specifications, the N97 PC has 4 CPU cores which run 200MHz faster than the N100 and has integrated UHD graphics which runs 450MHz faster.

The N97 PC has 12GB of DDR5 RAM running at 4800MT/s and a 500GB SSD, so its memory is right in the middle of the Pi 5 and N100 PC and its storage capacity is the same. Besides the SSD and WiFi adaptor, nothing else is upgradeable in the N97 mini pc.

The N97 PC has similar connectivity options to the Pi 5 and N100 PC. It has Gigabit Ethernet, two HDMI ports, three USB 3.2 ports, a MicroSD card slot and an audio jack.

Storage is likely going to be quite a bit slower on the N97 PC as it has an M.2 SATA drive, not an NVMe drive. I’m not really sure why they have done this on this PC as the N97 CPU has the same number of PCIe lanes as the N100, but we’ll see what effect this has on performance during testing.

The N97 PC is also an Intel X86-based system and for testing, we’re going to use the same version of Ubuntu that I used to test the N100 PC and Pi 5, Ubuntu Desktop 24.04.

Testing The N97, N100 and Pi 5 Computers

To add to the N100 and Raspberry Pi 5 results, to test performance we’re going to do the following tests;

Video Playback at 1080P in a Browser
A Sysbench CPU Benchmark
An NVMe Storage Speed Benchmark
GLMark2 GPU Benchmark
Power Consumption Test

Video Playback at 1080P

To test video playback, we’re going to be playing back a YouTube video in the browser – both in a window and fullscreen. Let’s start with video playback at 1080P.

The N97 PC has no problem playing back 1080P video, playback was smooth right from the start with very few dropped frames and playback remained unaffected running in the window or fullscreen.

So, like the N100 PC, the N97 PC is great for 1080P video playback.

Also like the N100 PC, but even a little better, it handles 4K playback really well as well. We get a couple of dropped frames in the beginning but nothing ongoing.

The integrated GPUs in the N97 and N100 PCs far outpaced the Rapsberry Pi 5’s, which struggled a little with even 1080P playback.

Sysbench CPU Benchmark

Next let’s run a Sysbench CPU benchmark. I ran three consecutive tests and then averaged the scores.

I ran the following test three times;

sysbench cpu --threads=4 --cpu-max-prime=20000 --validate run

The N97 Pc managed an average score of 44,045.

The scores for each of the three tests were 44,021, 44,072 & 44,042.

So the N97 PC scored essentially the same as the N100 PC which scored an average of 44,058. This is a little surprising given the higher available clock speed on the N97 CPU. Both are about 9% faster than the Pi 5 which scored an average of 40,359.

GMKtec may have limited the maximum performance of the CPU a little because of the compact design and very small cooling system.

Storage Drive Speed Benchmark

To test the storage speed, I used James Chamber’s Pi Benchmarks script. This script favours random read/write performance, so is a good representation of how an operating system would be making use of the drive.

To run the test, enter the following command in the terminal;

sudo curl https://raw.githubusercontent.com/TheRemote/PiBenchmarks/master/Storage.sh | sudo bash

Over three tests, the N97 PC managed an average score of 30,819 with average sequential read speeds of 487MB/s and average sequential write speeds of 357MB/s.

So as expected, the N97 PC’s storage speed is substantially slower than the N100 PC, which scored an average of 44,803 – almost 50% faster. The N97 PC is even slower than the Pi 5, which scored an average of 32,089. The Pi 5 also only uses a single PCIe lane but uses an NVMe drive instead of a SATA drive.

GLMark2 GPU Benchmark

The N97 has the most powerful GPU by a good margin, so I expect it to do quite a lot better than the N100’s results in our GLMark2 GPU benchmark.

This benchmark needs to be downloaded and built from source code, and is then run by entering the below command in the terminal;

glmark2

The N97 PC managed a score of 2,863, beating the N100 PC’s score of 2,070 by over 38% and it is over 9 times faster than the Pi 5’s score of 307.

So there is a massive difference in GPU performance between the N97 PC and a Pi 5, and even quite a substantial difference between the N97 and N100 PC.

Power Consumption Test

Lastly, let’s look at power consumption, like with the N100 PC, I expect that the N97 PC to do quite poorly in comparison to the Pi 5.

At idle the N97 PC uses around 6W and this goes up to 24W under load.

So power under load and at idle is a little lower than the N100 PC but expectedly higher than the Pi;

N100 PC – 8W Idle and 27W Under Load
Pi 5 – 4W Idle and 9W Under Load

Like with the CPU test results, this further suggests that they’ve done some performance limiting on the CPU to keep power and thermals down as the N97 CPU should use a lot more power than the N100 CPU.

Power consumption is quite good for a PC but it’s still over 2.5 times the consumption of the Pi under load.

As I said in my original comparison video, this probably makes little difference on mains, but for battery-powered projects that are required to run for many hours or even a few days, this difference can lead to substantial savings in power supply hardware and batteries. There is a significant benefit in using a processor that has been designed for mobile or low-power applications.

Results Discussion and Thoughts on the Three Computers

So the N97 PC beats the N100 PC in all of our tests except for storage speed and the Pi is still the best at power consumption.

There are other things that the Pi 5 does much better than either of these PC options. The GPIO pins on the Pi are significantly easier to use than any USB or microcontroller-based option that you can add to a PC like an Arduino Pro Mini or Nano, or even one of these purpose-built Adafruit FT232H USB to GPIO breakout boards. There are also loads of tutorials and software packages for the Pi 5 to help you use them.

So if you plan on using the computer for electronics or robotics projects with a reliance on the GPIO pins then the Pi 5 is still the best option of the three, but for experimenting with home server projects, running anything reliant on a GPU, or getting started with Docker or Kubernetes then an N97 or N100 mini PC is a great alternative.

If you can find them for a similar price then I’d probably go with an N97 PC over the N100 for any application where the faster storage drive speed isn’t a significant advantage.

I’m still of the opinion that Raspberry Pi have missed the mark a little with the pricing of the Pi 5. If they do launch a 1GB version of the Pi 5 for around $40 then this would be a great starter board for tinkering with electronics projects, but until they do, you’re probably better off going for a base version of the Pi 4. This still has plenty of CPU power to run projects locally and you’ll have access to a similar set of IO to the Pi 5 but without the additional cost.

Let me know which of these three computers you prefer and what your use case is in the comments section below.

Raspberry Pi 5 Case With An Integrated Water-Cooling Loop

Michael Klements

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December 11, 2024

1

Raspberry Pi 5 Case With An Integrated Water-Cooling Loop

A while back, I built a water-cooled Raspberry Pi 4 computer using a Pi CM4 module and the official IO board. This computer and its water-cooling loop worked well but was quite bulky for a Raspberry Pi build, so I recently wondered how I could make it more compact.

Ultimate Raspberry Pi Computer Build – Water Cooled CM4 with NVMe SSD

One of the challenges with this type of build is that standard water cooling parts for computers are just way too big. Even the most compact pumps, reservoirs and cooling blocks are much larger than a Raspberry Pi. You can comfortably cool a whole cluster of Pis with a single water cooling kit for a full-size PC.

Water Cooled Raspberry Pi Cluster Being Tested

So we’ll need to use more unconventional hardware and in some cases, make our own parts.

Here’s my video of the build, read on for the write-up:

Parts Used To Build My Pi 5 Case With Integrated Water-Cooling

Raspberry Pi 5 – Buy Here
MicroSD Card – Buy Here
Raspberry Pi 5 Power Supply – Buy Here
Ice Pump Cooling Block – Buy Here
5V Submersible Pump – Buy Here
60mm Radiator – Buy Here
60mm 5V Fan – Buy Here
M2.5 x 6mm Button Head Screws – Buy Here
M2.5 Brass Inserts – Buy Here
2mm Clear Acrylic – Buy Here

Equipment Used

USB-C Pencil Screwdriver – Buy Here
TS100 Soldering Iron – Buy Here
Elegoo Mars Ultra 5 SLA Printer – Buy Here
Bambulab X1c FDM Printer – Buy Here
Omtech Polar Laser Cutter – Buy Here

Designing The Water-Cooling Case

I tried this water cooling kit for a Pi 5 earlier in the year and this kit has a nice waterblock design but the radiator and fan are overkill.

The acrylic top of this block got me thinking that maybe I can design a new top for the copper base that incorporates some of the tubing and perhaps even a reservoir which I can 3D print as an all-in-one design to make the whole water cooling loop a lot more compact.

This way I only need to add a fan, radiator and pump to the case and the 3D print will take care of connecting them all together and will store the additional cooling liquid.

So I opened up Fusion360 and started modelling the components.

The design of this case was quite a long process – probably one of the most complicated ones that I’ve done. In the end, I settled on a design that has the Pi mounted vertically towards the back of the case, with cutouts for the ports out the back.

The Pi screws onto the cooling block through the side panel and on the opposite side is the reservoir with an integrated pump. On the front, we’ve got the radiator and fan. The cooling lines are all integrated into the print as far as possible with short flexible runs to the radiator.

I then went and added some design features to the case like a grill to cover the radiator, a top cover to install the pump through, some feet and a Pi logo on the side of the reservoir which I’m hoping will be a bit more visible with a contrasting coloured coolant.

Download The 3D Print Files

3D Printing The Pi 5 Case

My first thought was to try to print the case out as a large single resin print so that the water cooling loop really is a part of the case. This turned out to be a bit of a mess. I couldn’t get good results with a transparent resin and such large overhanging areas. The print came out distorted and generally looked terrible.

I then tried printing the whole case on an FDM printer. This surprisingly holds water better than I expected it to, but you can’t actually see the coolant and under pressure tiny leaks form droplets along the seams and leak into the infill.

So, I abandoned the single large print idea and instead separated the tank, block and cooling lines from the case so that I could print each part on the printer best suited for that particular part.

I printed the tank and block with its cover out first. I printed this in a smokey black transparent resin. This came out looking better than clear – mainly because the clear kept turning a weird shade of yellow when cured. The smokey black still provides some visibility into the tank and water cooling lines. After washing off the uncured resin, I put brass inserts into the print to mount components onto and then cured it under UV light.

Printing Reservoir In Smokey Black Resin

I’m really happy with how this print turned out on its own.

Next, we need the case and covers.

I printed the main body of the case in a dark blue sparkle PLA with white accents on the fan grill and top cover, and white feet. These will hopefully work well with the white coolant I plan to use in the reservoir.

These parts also came out well – well at least much better than the sad resin print looked.

To finish these parts off, I just need to add some M2.5 threaded brass inserts to the main body of the case, which I’ll do with a soldering iron.

Lastly, we need the side panels. Like with my other case designs, I went with clear acrylic for the side panels so that the internals are all visible. These are cut laser cut from a sheet of 2mm clear acrylic.

Assembling The Water-Cooling Case

I’ll start by assembling the cooling loop. First, let’s add the copper heatsink to the cooling block. My design uses the same o-ring as the original, so we can just swap it over. I hope I’ve got the dimensions right on the o-ring so that this doesn’t become a leak point!

For the pump, I’m using a 5V submersible USB pump. I’ve cut the connector off and I’ve crimped DuPont connectors onto the wires to plug directly into the Pi’s GPIO pins for power.

The pump also needs a short section of flexible tubing to connect it to the outlet through the top of the reservoir. I’ve put a zip tie on the pump outlet because it felt a little loose.

We can then connect the radiator to the loop.

This also needs some flexible tubing but first I’m going to mount the fan onto it. This is a 60mm radiator and I’ve got a 60mm 5V fan to mount onto it.

Similar to the pump, I’ve crimped connectors onto the wires to plug it into the Pi’s GPIO pins.

With the cooling loop mostly assembled, I’m going to give it a try before closing the reservoir and installing it into the case so that I can fix any issues with leaks or power while I still have easy access to it.

With some water added to the loop and power being provided by a 5V supply, it doesn’t look like we have any major problems. I left this to run for half an hour just to be sure and I had to repair two tiny holes in the resin print.

Testing The Water Cooling Loop For Leaks

We can then close the reservoir up. I’m using a couple of drops of hot glue for this so that it holds it in place enough that it doesn’t fall apart but not too much so that I can’t get it apart again if I need to access the pump.

Water Cooling Loop Ready For Installation

The whole assembly can then be put into the case. One screw holds the reservoir in place for now but this will be supported by a second when the side panel is installed.

Securing Water Cooling Loop To Main Case Body

Next, let’s mount the Pi to the assembly. I’ve plugged the fan into the Pi’s 3.3V and ground pins and the pump into the 5V and ground pins. I’ve left the cooling pads on the copper block in place and the Pi is secured to the cooling loop with four M2.5 screws through the bottom.

Installaing Raspberry Pi 5 Through Back Cover

We can then finish the case off by installing the side panels and cover plates.

I realised when installing the side panel on the Pi side that I was supposed to add some ventilation holes to this panel so the air from the radiator could escape after running over the Pi. So I added these in and cut a new side panel out.

I also made up some decals to stick on the opposite side.

And that’s the case complete. Let’s fill the reservoir with coolant, boot it up and do some thermal tests on it.

Testing The Water-Cooling Case’s Thermals

I used a utility called CPU Burn to put a full load onto all four CPU cores and logged the temperature over a half hour.

CPU Burn Running To Load Raspberry Pi 5 Cores

It runs much the same as the Pi does on my water-cooling stand. At idle, temperatures are around 28°C, after a minute and a half under full load, the temperature levels off at about 42°C and remained steady for the remainder of the test.

If I overlay the results from my water cooling stand, you can see that the results are very similar. The temperature just spikes a bit fast on the cooling stand, I guess because the block has a bit less thermal mass.

As expected, the water cooling system performs significantly better than the official Pi 5 Active Cooler, with a 25°C difference in steady-state temperature.

At the end of the test, with the CPU unloaded, the temperature drops back down to 28°C in about a minute and a half.

Temperature Drops Down Quickly Once Test Is Stopped

Final Thoughts On My Water Cooled Pi 5 Case

Overall I’m really happy with how this build came out. It took far longer than I expected it to, but I think it was worth it.

As usual, there is some room for improvement. My next iteration is going to include a power button for the Pi and allow some space underneath the Pi for an NVMe drive. I’d also like to secure the cooling loop to the case a bit better and improve upon the cable management.

Raspberry Pi 5 Compact Water Cooling Case

Let me know what you think of my water-cooled Pi 5 project in the comments section below or if there’s anything you think I should add to it.

Add an OLED Stats Display to Raspberry Pi OS Bookworm

Michael Klements

-

November 27, 2024

25

Add an OLED Stats Display to Raspberry Pi OS Bookworm

Raspberry Pi OS Bookworm has been out for a little over a year now. It comes with a few visual changes like a Wayland native taskbar with plugins like a CPU and GPU monitor, and a new default background, but far more changes have been made under the hood. One of these changes is the requirement to use a virtual environment to install third-party packages with pip rather than installing them system-wide. This places packages in a managed space instead of at system level, which lowers the risk of causing conflicts or breaking other software packages or the operating system.

Unfortunately, this change along with a few tweaks to the way the GPIO pins are used has made my previous tutorial for installing an OLED stats display on a Pi 4 outdated. If you try to follow this tutorial you’ll end up with a number of errors around virtual environments and broken libraries.

So today I’m going to run through how to connect and program and OLED stats display on a Raspberry Pi 5 running PI OS Bookworm.

Here’s my video tutorial, read on for the written tutorial;

What You Need For This Project

Raspberry Pi 5 – Buy Here
Raspberry Pi 5 Power Supply – Buy Here
32GB MicroSD Card – Buy Here
I2C OLED Display (128×64) – Buy Here
4-Wire Female to Female Jumper Cable – Buy Here
Ice Tower Cooler – Buy Here

Note: The above parts are affiliate links. By purchasing products through the above links, you’ll be supporting this channel, with no additional cost to you.

Connect the OLED Display to Your Raspberry Pi

To start out, let’s get the OLED display connected to our Raspberry Pi.

To do this, you’ll need a 4-wire female-to-female jumper cable. The colours don’t matter, they just help you to keep track of which wire goes to which terminal.

The OLED display’s terminals are labelled on the front, so make sure that you take note of them or label the wires before installing it in a case or you won’t be able to see them.

The pin arrangement on these displays is most commonly GND, VCC, SCL and SDA.

You can’t just copy this arrangement though as there are versions of this display that have the GND and VCC pins switched around.

If you connect power to the display incorrectly, even just a single time, you’ll likely damage it and it will no longer work, even if you correct the wiring afterwards – ask me how I know this.

Plug your jumper cable into these four pins and then take note of which colours you’ve got connected to which pins.

Next, we can plug the other ends into our Raspberry Pi’s GPIO pins. Make sure that your Pi is off and power is disconnected before doing this, you don’t want to short a connection or plug a lead into an incorrect pin and not have a chance to check the connections before powering it up.

GPIO-Pinout-Diagram — Source – https://www.raspberrypi.com/documentation/computers/raspberry-pi.html

There are a few options for the power pins. I usually plug the GND jumper into pin 9 and the VCC jumper into pin 1. You can use any of the pins labelled ground for the ground jumper and these displays will run on 3.3V or 5V so you can use any of these labelled pins for the VCC jumper.

GND to Pin 9 (Ground)
VCC (3.3V) to Pin 1 (3.3V)
SCL to Pin 5 (GPIO 3)
SDA to Pin 3 (GPIO 2)

Next, we need to connect the SCL and SDA jumpers, which just get plugged into the corresponding GPIO pins. Plug SCL into pin 5 and SDA into pin 3. Don’t get mixed up with the GPIO numbers and Pin numbers, I’m working off the physical pin numbers.

Display-Connected-To-GPIO-Pins-Both-Sides

Quickly recheck your connections and we can then start programming the display.

Programming The OLED Stats Display

I’m going to be working on a fresh 64-bit install of Raspberry Pi OS Bookworm, which you can flash to your microSD card or SSD using Raspberry Pi Imager.

Plug the microSD card into your Pi’s card reader and then plug in your power adaptor to boot it up.

If this is your first boot, you’ll need to go through a few setup steps and you’ll then land on the desktop.

It’s possible to do this installation on a headless Pi too as we’ll only be working in the terminal.

Updating The Pi & Installing Libraries

Open up a new terminal window or SSH into your headless Pi and we’ll start by making sure that the Pi is up to date by entering the following commands. When the updates are finished installing, reboot the pi.

sudo apt-get update
sudo apt-get -y upgrade
sudo reboot

Once rebooted, open up the terminal again and then enter these commands to install two libraries.

sudo apt-get install python3-pip
sudo apt install --upgrade python3-setuptools

Now we need to create a virtual environment to continue the setup in. We’ll call this stats_env.

sudo apt install python3-venv
python3 -m venv stats_env --system-site-packages
source stats_env/bin/activate

Once activated, you should see stats_env at the start of your current terminal line.

Next, let’s install the Adafruit Blinka library. Once complete, confirm yes at the end to reboot your pi.

cd ~
pip3 install --upgrade adafruit-python-shell
wget https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/raspi-blinka.py
sudo -E env PATH=$PATH python3 raspi-blinka.py

With the Pi rebooted, let’s now check that it can see the connected display. Enter this command and you should then see an address table and importantly you should get the characters 3c in the top right area of the table.

sudo i2cdetect -y 1

        0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
    00:                         -- -- -- -- -- -- -- --
    10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    30: -- -- -- -- -- -- -- -- -- -- -- -- 3c -- -- --
    40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
    70: -- -- -- -- -- -- -- --

If you don’t see any characters in the table then your Pi isn’t recognising the connected display. First, check your display is connected correctly and then make sure that the I2C interface is enabled. If you get a table full of characters then you’ve probably made a wiring mistake as this happens if SDA is shorted to ground.

To check that the I2C interface is enabled, use the below command to open up configuration options, then select “3 Interfacing Options”, then select “I5 I2C”, “Yes” to enable the interface, “Ok” and then “Finish”

sudo raspi-config

Next, we can install the CircuitPython libraries specific to this display. We start by re-entering the virtual environment and then enter these commands to install the libraries.

source stats_env/bin/activate
pip3 install --upgrade adafruit_blinka
pip3 install adafruit-circuitpython-ssd1306
sudo apt-get install python3-pil

Running The Stats Script

We can then exit the virtual environment and download the stats display Python script from my GitHub repository.

deactivate
sudo apt-get install git
git clone https://github.com/mklements/OLED_Stats.git

We then need to re-enter the virtual environment to run the script.

source stats_env/bin/activate
cd OLED_Stats

There are two options for scripts to run. The first is a text-based one called stats.py and the second is one with icons called monitor.py. You’ll need to change the filename in the run command depending on which one you’d like to run.

python3 stats.py

or

python3 monitor.py

The script is now running and your display should show your IP address and system stats.

We can’t leave it like this though, if we close the terminal or reboot the Pi, the script will terminate and the display will stop being updated. So we need to follow some additional steps to get the script to run automatically on startup.

Programming The Pi To Run The Script On Startup

This is quite easy to do, we just need to copy this file from my GitHub repository into the root directory, then make it executable and then use crontab to tell it to run on startup. You’ll need to open a new terminal window for the below steps. Remember to change your username (“pi” below) if you’re not using a default username

curl -OL https://raw.githubusercontent.com/mklements/OLED_Stats/main/OLED_display
sudo chmod +x /home/pi/OLED_display

The OLED_display script runs the stats.py file by default. To change this to the monitor.py file, you’ll need to open it up in a text or code editor and change the target filename from stats.py to monitor.py.

Open up crontab by entering this command. If this is the first time you’re opening crontab then you’ll be prompted to select an editor, select 1 and hit enter.

crontab -e

Then add this line to the end of the file. Make sure to change your name to your username if you’re not using the default username pi.

@reboot /home/pi/OLED_display &

You should now have a working OLED stats display that starts up automatically each time your pi boots up.

You can go ahead and install it into your case if you haven’t done so already. My favourite case at the moment is my Pimoroni NVMe case which accommodates an NVMe drive underneath the Pi and an Ice Tower for cooling.

Let me know what you’re using your OLED stats display for in the comments section below, or if there’s anything you’d like to see added to the display script in the future.

Gweike G2 Pro 30W Fibre Laser Unboxing & Review

Michael Klements

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November 13, 2024

1

Gweike G2 Pro 30W Fibre Laser Unboxing & Review

I’ve been using diode and CO2 lasers in my home workshop for quite some time. Combined with a 3D printer, they’ve been fantastic for bringing my project ideas to life.

My main go-to laser is the Gweike Cloud 50W CO2 laser, so when Gweike reached out about trying out their latest Fibre laser, I couldn’t help but take them up on the offer.

Gweike Cloud Home Laser Cutter & Engraver

Being a fibre laser, the G2 Pro is quite different to any of the other lasers that I’ve used previously. Not only does it look and function differently but it’s able to cut and mark different materials too.

I was particularly interested in is its ability to engrave metals, with the possibility of engraving stainless steel in colour, and I wanted to see whether I could use it to engrave or mark my 3D-printed parts and enclosures.

Pi 5 Desktop Case For NVMe Bottom Side 2

Here’s my video using the Gweike G2 Pro to engrave on 3D printed parts and colour stainless steel engraving. Read on for the written review:

Where To Buy The Gweike G2 Pro

Gweike G2 Pro (Web Store) – Buy Here
Gweike G2 Pro (Amazon) – Buy Here
Gweike G2 Pro Rotary Tool – Buy Here

Get USD700 / EUR100 Off With The Coupon Code MICHAEL for a limited time

Equipment Used In This Review

USB-C Pencil Screwdriver – Buy Here
Dremel 4300 Rotary Tool – Buy Here
Dremel Compatible Milling Bit – Buy Here

Unboxing & First Look At The G2 Pro

The G2 Pro comes in a branded box with white foam inserts to protect it.

There are two main parts to the laser system, the base and the head, and they’re permanently attached to each other with a braided sleeve.

Included in the box along with the two-part laser is a stand, the power and USB cables, a set of safety glasses, screws and clamps for the work bed positioning guides, a ruler to set the focus height, some basic tools, a flash drive containing the software and a user manual.

Assembly is relatively straightforward. The vertical part of the stand bolts onto the base and the laser head then sits on top of it and is secured with a thumb screw.

This model requires a USB cable to power the electric height adjustment on the stand and another USB cable connects the laser to your computer to control it.

You can use Lightburn or their included GLaser software to control the laser. I’ve used Lightburn on all of my other lasers, so I decided to give the included GLaser software a try for a change. This is quite basic in comparison but has everything you need to get good results from the G2 Pro – and it’s free to use.

With the laser set up, let’s try engraving something.

Engraving 3D Printed Parts

I’ve often wanted to find an easy way to label the ports or IO interfaces on an enclosure, but this has always turned out to be quite difficult to do. With advancements in 3D printing, I can add labels to the enclosure by changing filament colours, but this makes the prints take much longer and you’re quite limited in the detail or clarity of the text that this method is able to produce. You can’t really produce crisp readible text smaller than about 8mm.

PET2Print Running To Convert Bottle To Filament

I’ve experimented with laser engraving onto 3D printed parts in the past with diode and CO2 lasers, but the main issue is that the 3D printed plastic melts rather than being marked or engraved. In some cases you can see the text but it’s because a layer or two of the 3D print has been removed.

Fibre lasers have a fixed head and move the laser dot through a series of rotating mirrors, so they’re able to move orders of magnitude faster than CO2 or diode lasers which need to move a whole gantry. The G2 Pro claims a maximum speed of 15000mm/s while a typical CO2 laser like the Glowforge or Gweike Cloud can only do a couple of hundred mm/s. With a fibre laser, the area being marked is exposed to the laser dot for such a short period of time that the plastic doesn’t have a chance to melt. This is not the only reason that a fibre laser can mark plastics better, the wavelength and frequency of light produced make it much better at marking plastics and metals than CO2 or diode lasers.

To figure out what settings produce the best results on 3D printed parts, we first need to do some testing. There are a lot of variables that can be tweaked but the main three settings are the laser speed, which is how fast the dot is moved across the surface, the laser power which is how much of the lasers strength is used as a percentage and then the frequency, which is how quickly the lasers dot pulses on and off.

I ran quite a few tests to try out different speed power and frequency settings, which I won’t bore you with too much but essentially my findings were that the laser’s speed needs to be quite fast, the power needs to be very low and the frequency works best at the higher end of the range that the laser can handle.

With the G2 Pro, these settings are a speed of 7000mm/s, a power of 15% and a frequency of 150kHz.

The settings also vary depending on the type and colour of filament being used but these work as a good starting point for most dark PLA filaments, which is what I tend to use most often.

Given that the laser essentially decolours or bleaches that filament, it works on a range of coloured filaments but obviously won’t be able to mark white or very light colours.

I prepared these 3D-printed side panels for my Pi 5 NVMe case and I then drew up a circuit board pattern and some text to engrave onto them.

There is a red outline marker that helps guide the placement of the components on the bed and on this model, the laser height is electrically adjustable to set the focus distance to the top surface of the object being engraved.

The G2 Pro flies through engraving the intricate circuit board patterns. My video at the beginning of the post shows the laser running in real-time and this engraving would have easily taken 20-30 times longer on a diode or CO2 laser if I were engraving onto a material like wood or acrylic. A second pass helps clean up any dark spots and makes the text and lines a bit more defined.

After a little over a minute for both passes, the engraved circuit board pattern came out looking really good.

The text is also nice and clear. These small labels are only 2mm high, so this would have been impossible to 3D print.

I really like how much character can be added to plain surfaces by being able to mark 3D-printed parts.

Engraving Stainless Steel

Next, I want to try colour engraving on some stainless steel.

Colour engraving might seem strange since the laser isn’t depositing anything onto the surface of the metal, but you can create several different colours by again varying the power and frequency of the laser dot. As far as I can tell this works by applying a fairly precise amount of heat to the surface which causes it to oxidise and the level of oxidiation determines the colour.

This also requires a lot of experimenting but I found that I could get a nice green colour for the Raspberry Pi logo’s leaves by using 50% power and a frequency of 20kHz, I could get a red colour for the raspberry using 50% power but at 30kHz. On the opposite side panel I put a similar circuit board pattern but this time I’ll be trying to engrave it in a dark red/gold colour which I’ll do at 40% power and 30kHz.

The G2 Pro can engrave stainless steel but can’t cut it, so I had to make the rest of the cutouts to turn these into side panels for my Pi case using a dremel.

I think the colours came out well. I’m not sure how durable they’ll be but the graphics seem to be quite well etched into the surface.

I’m really happy with the results of both of these tests, I now have a way to mark or label 3D-printed parts without having to build the labels into the printing process. The ability to add multi-coloured features to stainless steel parts is going to open up some interesting design opportunities.

Circuit Board Pattern Engraved Onto Side Panel

Other Features Of The G2 Pro

The G2 Pro can engrave other metals like brass, gold, silver and aluminium and also other materials like dark acrylic, plastic, leather or painted surfaces. There are also loads of tutorials online for creating awesome-looking 3D engraved coins from brass blanks. The one below by Justin Laser is really good.

It also has an optional safety shield that allows you to use it as a handheld device on materials that you can’t place on the bed. You can remove the head of the G2 Pro from the stand and the shield clips onto the bottom of it. The shield spaces the head at the correct distance from the material so that the laser is in focus.

G2 Pro Lens Cover For Engraving Onto Large Objects

Fibre Laser Limitations and Drawbacks

The G2 Pro and other fibre lasers do have some disadvantages when compared to diode or CO2 lasers, so you need to look at what your particular requirements are.

Fibre lasers generally have quite a small bed size because of the mirror head design. The working area on this version of the G2 Pro is 150mm x 150mm. This is large enough for engraving onto jewellery, mugs, coasters etc. but can be limiting for larger projects.

A fibre laser is also not designed to do any cutting, it is primarily a marking or engraving laser, so you’ll need to use precut blanks for your projects.

Lastly, the wavelength of fibre lasers is quite short and as a result, the laser energy is partially absorbed by organic materials like most woods, making it difficult or in some cases impossible to engrave. For similar reasons, it also only works on dark leather.

Final Thoughts On The Gweike G2 Pro

So if marking 3D printed parts or engraving onto metals in a range of colours is something you’d like to get from a laser, then have a look at the G2 Pro. It’s priced from $1,800, which is quite a lot for a workshop or small business tool but it’s priced very competitively when compared to other lasers of a similar power and the G2 Pro is faster and more accurate than these.

Let me know what you think of it in the comments section below and if you’ve got any use cases that you’d like me to try out when using it.

Khadas Mind 2 Unboxing & Review

Michael Klements

-

October 31, 2024

0

Over the past two years, I’ve tried two of Khadas’ single board computers which were aimed at being compact and low power computers for home server or media centre projects.

More recently Khadas have come up with something equally small but a lot more powerful. The Mind 2 is an ultra-small, dockable mini PC with a couple of unique features. This is the second generation in the Mind series that brings in the Intel Core Ultra 5 and 7 series CPUs to replace the i5 and i7 CPUs in the original.

Where To Buy The Khadas Mind 2

Khadas Mind 2 Core Ultra 5 (This Review) – Buy Here
Khadas Mind 2 Core Ultra 7 (More Powerful) – Buy Here
Mind Dock – Buy Here
Mind Graphics – Buy Here

Equipment Used In This Review

USB-C Pencil Screwdriver – Buy Here
Infiray P2 Pro Thermal Camera – Buy Here
Video Capture Box – Buy Here

Unboxing and First Look

The Khadas Mind 2 comes in a minimalist white branded box with an image of the Mind 2 on the top and the name on either side.

It is available in two processor options, this review is done on the less power Intel Core Ultra 5 version. It is also available in an Intel Core Ultra 7 version, and that version has two different RAM options, 32GB and 64GB.

Inside the box, first up we’ve got the Mind 2. Underneath it is a sleeve with the manual and warranty card.

Lastly, beneath that, we’ve got a USB-C power cable and a 65W USB-C power adaptor.

It’s quite clear that they’ve tried to replicate Apple’s packaging with the minimalistic white box and even the way they’ve packaged the power cable and adaptor. It’s not done cheaply though, the packaging feels like you’re unboxing a premium product.

The palm-sized Mind 2 weighs just 435grams. It feels well-built in an anodized aluminium unibody enclosure.

It’s quite small too, it measures 146mm long, 105mm wide and is just 20mm thick.

Ports & Features On The Mind 2

Taking a look around the Mind 2, on the front we’ve got a single power button with an integrated power indicator LED. This doesn’t seem to do anything out of the box, so either it is disabled without power connected or that battery is empty on arrival.

Each of the two short sides have symmetrical cooling vents on them, one is an air inlet and the other an outlet.

On the back, we’ve got a Thunderbolt 4 port which doubles up as the USB C power input. Alongside it is a USB 4 port, then we’ve got an HDMI 2.1 port which will do 4K 60Hz and then two USB 3.2 Gen 2 ports. So they’ve included all of the ports you’d need to use the Mind 2 as a standalone PC without a dock if you’d like to. Above the ports are some more ventilation holes – also air inlets.

Notably, and perhaps disappointingly for a workstation, it doesn’t have any wired networking ports, but it does have WiFi 6E and Bluetooth 5.3 connectivity. To get wired networking you’ll need to use a USB adaptor or their dock which we’ll discuss a bit later.

Similar to the PCIe port that I recently tried out on the GTi 14 Ultra, the Mind 2 has an expansion port on the bottom. This is a proprietary port that they’ve called the Mind Link.

This port has the bandwidth of a PCIe Gen 5.0 x 8 port, allowing up to 256 GT/s. It supports USB 3.2 Gen 2, HDMI 2.1 and it allows for up to 10A of input power.

The Mind 2 has a 512GB NVMe SSD but also has an additional M.2 slot to add a second SSD which is accessed through an easy-to-use magnetic cover on the bottom. The slot is limited to 2230 size drives though.

The text on the bottom looks good framed in the cover plate but I’m not sure it’s the best idea to have the serial number on an easily swappable component.

Opening Up The Mind 2 To Take A Look Inside

The bottom cover is held in place with four screws underneath the rubber pads. Internally, the only upgradable component is the NVMe SSD.

The Mind 2 has an Intel Core Ultra 5 125H Processor which is essentially a CPU, GPU and NPU all on a single chip. This is a mobile processor with 18MB of cache and 14 cores;

4 Performance cores that can run at up to 4.5Ghz
8 Efficiency cores that can run at up to 3.6Ghz
2 Low-Power Efficiency cores that run at up to 2.5GHz

It has an integrated Intel Arc GPU with a maximum frequency of 2.2GHz and this supports hardware-based ray tracing.

It’s also got 16GB of LPDDR5 RAM running at 6400 mega transfers per second. The RAM is non-removable so can’t be upgraded.

Unlike any of the other mini PCs I’ve tried on this channel, the Mind 2 comes with a built-in 5.55Wh battery. Being relatively low capacity for the high-performance CPU we’ve got in the Mind 2, this battery isn’t designed to run the Mind 2 without a mains connection but rather allows the Mind 2 to be used like a laptop in sleep mode in case of a power interruption or to move it between locations like a home or office. You can run the Mind 2 on the battery but it’ll only run for about half an hour.

So the Mind 2 is like the brains of a laptop that is designed to be transportable between workstations without shutting down.

Cooling is achieved by a single fan with two air inlets, one on the back and one on the side, and a single air outlet along the opposite side.

First Boot & Performance Benchmarks

The Khadas Mind 2 comes with a clean install of Windows 11 Home. There is an application called Mind that comes preinstalled but this is responsible for the battery management like most laptops would have.

Opening up the performance monitor we can see our CPU is an Intel Core Ultra 5 and it’s running at a base speed of 3.6GHz. We’ve got our 16GB of RAM running at 6400Mhz and our 512GB storage drive. Our GPU is an Intel Arc and it’s sharing 9Gb of RAM.

To test the Mind 2, we’ll run two benchmarks. The first is Geekbench to test the CPU and GPU performance.

The CPU benchmark took about 5 minutes to complete. We get a single core score of 2,163 and a multicore score of 11,024. These results are not far off the results I got on the GTi 14 Ultra which has the more powerful Core Ultra 7 CPU.

Similarly to that CPU, single-core scores are fairly average but the multicore score is quite good.

The GPU benchmark took just over a minute and we got a score of 28,270. This is quite good for an integrated GPU but is quite a lot lower than the results on the Core Ultra 7 CPU. It should still be powerful enough to do some low-level 1080p gaming on it, well test that out in a bit.

Next, let’s run Furmark to test the computer’s GPU and thermals. I ran the Vulkan 1.3.289 test at 1080P.

We get a score of 2079 with an average of 34fps. Interestingly Furmark reported the maximum GPU clock frequency reached to be 1.8GHz, which is quite a bit short of the 2.2GHz available.

1080P Gameplay On The Mind 2

Now that we’ve run a few benchmarks to test performance, let’s try running Counterstrike 2 and Doom Eternal on it.

In Counterstrike 2, we get around 60fps with graphics settings on High. Turning graphics up to Very High, the fps drops to a little under 50. This is not a particularly demanding game but is still a fairly good result for such a small PC without a dedicated GPU.

Next, I tried running Doom Eternal. I had all graphics settings on Ultra Nightmare and Ray Tracing turned off. I was getting about 60fps fairly consistently which is also pretty good. Turning ray tracing on mid-game first caused the game to crash as it seemed to run out of video memory, but turning it on before loading the game then worked and we lost about 10fps.

So the Mind 2 by itself handles 1080P gaming fairly well with the integrated Intel Arc graphics, both games were very playable with mid to high graphics settings and also ran ok with graphics settings maxed out. This is also only the base version of the Mind 2, there is a more powerful option available and you can add on the graphics module to further boost gaming performance.

One thing that did get quite annoying was the loud fan. If you’re just doing light work on the Mind 2 it’s barely audible but under load like when playing games, it can be quite noisy. There is an audio clip of the fan noise in my video at the beginning of the post.

Power Consumption & Power Management

In terms of power consumption. The Mind 2 uses around 9W when idle on the desktop with the battery fully charged and it goes up to a little over 45W with the GPU and CPU being used during gaming. The idle consumption is really impressive for a fairly powerful mini PC. This is around the same as the low-power N100 computers I’ve tried.

If we pull the power cable out of the back, the Mind 2 goes into sleep mode. This allows you to move it to another workstation or take it home and when you plug it back in you can carry on right where you left off. There’s no need to close documents or applications.

You can also disable going into sleep mode and it’ll run on the internal battery. In this mode, I was able to get about half an hour of run time before the battery was depleted.

Final Thoughts On The Khadas Mind 2

So that’s my overview of the Mind 2, but we’ve only really had a look at half of the complete product and this is where I have mixed feelings about it. Sure, you can use the Mind 2 as a standalone mini PC like this, but at $799 for this entry-level version, you’re paying quite a lot for a mini PC that is missing quite a few features.

That’s where the Mind Link come in. Khadas have already developed a Dock and an external GPU solution for the Mind series and they’re currently working on a portable display too. These each add functionality to the mini PC to suit a particular application.

The Dock makes it easy to add and remove the Mind 2 to a home or office workstation and the external GPU adds an RTX4060 to it for gaming. Both of these are fantastic options to have, but they do also add quite significantly to the total price. You’d be in for almost $2,500 if you bought the top-spec Mind 2 and Mind Graphics module!

Overall, the Mind 2 is well-built and has a number of features that I really like. I like that it is powered through a USB-C cable and the integrated battery allowing it to be used more like a laptop adds to its flexibility in size and form factor. It really is a palm-sized mini PC, and quite a powerful one too.

I don’t like that it doesn’t include a wired network option and because they’ve tried to make it very compact, it is also not upgradable (other than increasing storage). I personally don’t mind the proprietary Mind Link interface as this type of hot-swappable high-speed interface would be very difficult to achieve otherwise, but I would like to see their expansion options include some more versatile modules like a x8 PCIe port that can be used to add your own GPU or PCIe cards to. This would negate some of the concerns around spending $1000 on a graphics module that is not compatible with any other platform.

Let me know what you think of the Khadas Mind 2 in the comments section below.

Elegoo Mars 5 Ultra Unboxing and Review

Michael Klements

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October 23, 2024

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The Mars 5 Ultra is the latest revision to Elegoo’s successful Mars series of SLA printers. Its product page advertises an impressive set of features like 9K resolution, automatic build plate levelling, resin level detection and remote monitoring via an integrated AI camera.

The Mars 5 Ultra retails for $270 on Elegoo’s web store and $285 on Amazon at the time of writing this review, which makes it an attractive option as an entry-level or budget-friendly printer.

Where To Buy The Mars 5 Ultra

Elegoo’s Web Store – Buy Here
Amazon US – Buy Here

Other Equipment Used In This Review

Elegoo Photopolymer Resin – Buy Here
Elegoo Mercury Plus Wash & Cure Station – Buy Here

Unboxing The Mars 5 Ultra

The Mars 5 Ultra comes horizontally packaged rather than vertically like I’m used to seeing with other SLA printers. It is well protected with white high-density foam inserts protecting all the major components and a clear wrap around the acrylic cover to prevent scratches.

Like with most SLA printers, the Mars 5 Ultra comes pre-assembled. You only need to install the build plate and resin vat, which are easy to do and typically part of the printing process.

Included in the box is the Mars 5 Ultra, its build plate and power supply along with some accessories to get you started with your first prints.

These accessories include a USB stick with software and test print files preloaded, a WiFi antenna, Allen keys and screws to replace the resin vat film, gloves, face mask and paper filters for handling the resin and a drip tray to contain spills when removing prints. It also includes a license code card for Chitubox Pro.

The design of the Mars 5 Ultra, and especially the cover, gives it a futuristic cyberpunk feel. A lot of the design style feels unnecessary, but I think it works and I quite like the look of it.

First Look Around The Mars 5 Ultra

The Mars 5 Ultra feels like a solid and well-built printer. Its construction is primarily metal, with only the front panel and clear cover being plastic.

The build plate attaches to the z-axis arm with a toolless clamp, which is solidly built and easy to use. They claim that the Mars 5 Ultra is ready to run out of the box and doesn’t require any manual calibration or levelling of the build plate – we’ll discuss this a bit later when we try a test print.

The z-axis arm runs on a single linear rail and like most printers these days, has a silent stepper motor driver.

The resin vat is held in place with a thumbscrew on each side and features a typical “max level” indication line. It has also been designed with pouring points on both sides, which is good to have.

A notable feature of the Mars 5 is that the resin vat is designed to tilt during prints. This tilting motion peels prints off of the film from one side to the other rather than just pulling up on them until they “pop off”. This allows the Mars 5 to get slightly better print speeds and reduces the likelihood of adhesion issues.

It also includes a 720p AI camera. This camera allows you to monitor prints remotely and create timelapses of your prints as they are completed. The AI part of the camera includes warp detection and empty build plate detection – both of which assist in alerting you of any failed prints.

Interaction with the Mars 5 Ultra is done through an integrated vertical colour touchscreen on the front. The user interface is simple and refined – I could find all of the settings that I was looking for as well as start and stop prints fairly intuitively.

In terms of IO, along the right-hand side, we have a USB type A port to plug flash drives into for prints, the power switch, the DC power input and the WiFi antenna.

Elegoo have also included a drip tray with the Mars 5 Ultra, which snaps into place around the resin vat. This has been added to catch drips or spills that may land on the printer when you’re removing prints from the build plate, preventing drips or spills from damaging the LCD or the vat tilting mechanism. This is a nice feature but the plastic that it is made from feels more like packaging than an actual product.

Mars 5 Ultra Specifications

Printer Dimensions: 260mm [L] x 268mm [W] x 452mm [H]
Build Volume: 153mm [L] x 77mm [W] x 165mm [H]
LCD Resolution: 8520 x 4320px (9K)
LCD Size: 7″
Pixel Size: 0.018mm (18um)
Z-Axis Precision: 0.02mm
Print Speed: < 150mm/h
Connectivity: WiFi and Direct USB
Control Panel: 4″ Capacitive Touchscreen

Printing Out The Included Test Print

The Mars 5 Ultra includes a rook demo print on the supplied flash drive, which has been customised with Elegoo’s logo and the Mars 5 Ultra name on it.

Before each print, the Mars 5 Ultra runs through a self-test routine, which is displayed on the LCD display as a checklist. It also warns you not to touch or bump the printer during this routine.

Part of the routine includes self-levelling or calibrating the build plate level. I didn’t have any issues with this during my testing but a lot of the failed print issues that I’ve seen users talk about online have been due to the lack of information around manually levelling this build plate or at least checking it during setup. I know Elegoo have aimed at creating a “ready to run” printer, but it would be really helpful to include some troubleshooting advice or steps in the included manual.

I had no issues with printing out the rook test print using Elegoo’s smokey grey translucent resin. It was however quite difficult to remove from the build plate – but I guess this is better than losing the print during printing.

The build plate design is a lot more rigid than the typical single-point support, but this does have a disadvantage in that it is more difficult to clean in between each of the support posts.

The Rook test print came out really well, aside from the difficulty in getting it off of the build plate.

Slicing My Own Test Print In Chitubox

Included on the flash drive that comes with the Mars 5 Ultra are two versions of Chitubox – Chitubox Basic and Chitubox Pro.

Chitubox Basic is free-to-use software that doesn’t require a license.

Chitubox Pro requires an annual subscription but Elegoo include a 3-month license with the Mars 5 Ultra. This is a nice inclusion but Chitubox Pro is quite expensive ($170 per year) if you’re not frequently making use of the pro-level features (likely for business use) and the included 3-month license is quite short.

The Mars 5 Ultra has built-in WiFi which allows it to do firmware updates without being connected to a PC, but also allows prints to be sent to it wirelessly using the ChituManager plugin. This plugin also allows you to use the Mars 5 Ultra’s integrated camera for remote monitoring.

The model that I chose to slice was a Lattice Benchy by DaveMakesStuff. This too can be printed directly on the build plate without having to be printed at an angle and should be printed without supports.

I used Elegoo’s recommended settings for their ABS-Like Smokey Black Resin, which was readily available on their website – both under the printer’s product page and on their resin’s listing.

The lattice structure printed out impressively well considering the fine detail. The benchy came out flawlessly. There was no visible warping or distortion and the high resolution makes it very hard to see any

The location of the camera is useful in that it is out of the way when you’re topping up the resin vat or removing prints, but being forward facing and with the dark lid, the quality of timelapse videos is not great. That said, it is easy to use and most casual users would be happy with the results.

I also tried printing out a

Final Thoughts On The Mars 5 Ultra

The Mars 5 Ultra impressed me quite significantly. Having not used a new SLA printer in a couple of years, it was great to see how quickly you can get set up and running, and the print quality is amazing. There is no more fiddling with bed levelling and calibration issues to resolve, it just works.

The Mars 5 Ultra includes all of the higher-end features of Elegoo’s flagship Saturn 4 Ultra but at a much lower price point. You’re getting a very capable printer with integrated WiFi and a camera for only a little over $250.

I like the automatic build plate levelling although it would have been nice to have some instructions included in the manual on how to manually level the build plate if you run into issues with it. The manual could also do with a bit more troubleshooting guidance, although there is a lot of support available online.

The integrated AI camera is a great feature for its automated detection features although its placement and lack of internal lighting within the enclosure leave the timelapse video quality being quite poor.

Overall, I think the Mars 5 Ultra is a great product at an even better price point. You wouldn’t be disappointed with the Mars 5 Ultra as your first SLA printer or as an upgrade to an older printer.

The DIY LifeTech & Electronics

The DIY LifeTech & Electronics

What You Need To Build Your Own Family Planner

Tool & Equipment Used:

Components Used To Build The Family Planner

Assembling the Family Planner’s Stand

Setting Up The Family Planner Dashboard Software

Automating the Family Planner Functions

Final Thoughts On The Family Planner

Components Used To Build The Ultimate Pi 5 Server

Tool & Equipment Used:

Ultimate Pi 5 Server Hardware

Designing The Pi 5 Desktop Server Enclosure

3D Printing The Components Using The Elegoo Centauri Carbon

Finishing Off The Pi 5 Desktop Server Case

Assembling The Raspberry Pi Stack

Installing The Stack In The Case

Installing The OLED Stats Display Script

Final Thoughts On My Pi 5 Desktop Server

Where To Buy The EcoFlow Delta 3 Plus

Equipment Used For Testing

Unboxing And First Look At The Delta 3 Plus

Charging Options

Power Outlet Options

Other Features On The Delta 3 Plus

Testing Whether It Can Be Fully Charged In Under 1 Hour

Powering Some Other AC Devices

Testing The DC Power Options

Testing The UPS Functionality And Changeover Time

Using The EcoFlow App With The Delta 3 Plus

Final Thoughts On The Delta 3 Plus

Purchase Links For Components Used In These Tests

Equipment Used

Hardware Changes Through Each Generation

Raspberry Pi 1

Raspberry Pi 2

Raspberry Pi 3

Raspberry Pi 4

Raspberry Pi 5

Testing The Performance Of Each Generation Of Pi

1080P YouTube Video Playback

Sysbench CPU Benchmark

GLmark2 GPU Benchmark

Storage Speed Test

iPerf Network Speed Test

Power Consumption Test

Final Thoughts On The Drag Race And Future Pis

Purchase Links For The Computers and Parts Used For Testing

Equipment Used

Hardware and Features of Each Computer

Testing The N97, N100 and Pi 5 Computers

Video Playback at 1080P

Sysbench CPU Benchmark

Storage Drive Speed Benchmark

GLMark2 GPU Benchmark

Power Consumption Test

Results Discussion and Thoughts on the Three Computers

Parts Used To Build My Pi 5 Case With Integrated Water-Cooling

Equipment Used

Designing The Water-Cooling Case

3D Printing The Pi 5 Case

Assembling The Water-Cooling Case

Testing The Water-Cooling Case’s Thermals

Final Thoughts On My Water Cooled Pi 5 Case

What You Need For This Project

Connect the OLED Display to Your Raspberry Pi

Programming The OLED Stats Display

Updating The Pi & Installing Libraries

Running The Stats Script

Programming The Pi To Run The Script On Startup

Where To Buy The Gweike G2 Pro

Equipment Used In This Review

Unboxing & First Look At The G2 Pro

Engraving 3D Printed Parts

Engraving Stainless Steel

Other Features Of The G2 Pro

Fibre Laser Limitations and Drawbacks

Final Thoughts On The Gweike G2 Pro

Where To Buy The Khadas Mind 2

Equipment Used In This Review