STM32MP157F-DK2 Dev Kit Stand / Holder
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Bill of Materials
- Short USB-C to A, Micro USB to A, Ethernet Cables x 1: As needed - 15-20cm is about the right length
- M3 Hex Socket Head Screw (M3x12mm) x 2:
- M3 Heated Inserts (e.g. M3x4x5 or M3x6x5) x 2:
- UGREEN USB-C Hub (Part #60554) x 1: Optional
Description
3D printed case / stand for an STM32MP157F-DK2 Dev Board Kit from ST Microelectronics.
I've been doing some embedded linux learning/development and the ST kit/board is great but it needs quite a few cables/accessories connected to work and made a complete mess of my desk and wasn't very portable (moving to/from work & home in my laptop bag).
I built this stand to allow me to more easily see/use the touchscreen whilst maintaining access to the various ports / SD cards / boot selector DIP switches / buttons etc. It's not designed as a complete case - rather to assist with prototyping etc.
It doesn't allow access to the GPIO headers/pins (the USB cables / hub gets in the way) as I wanted a cleaner look, but you could always cut an additional slot/hole in Bambu Studio if you needed access to these.
A super-neat feature is that it can take a UGREEN USB Hub which has 3 USB ports (needed for programming / USB OTB) and a built-in ethernet port (for terminal access etc.). This is not required though - but it really makes it a simple setup as you only need to connect a single USB cable. Power draw of the whole setup is around 2.8W watts so it runs fine off a single USB port.
The DK2 is secured by slotting the PCB under two notches at the top and then the front piece holds the front of the screen. I've printed 5-6 of these now and the fit has been perfect every time but your mileage may vary.
For the cables - I used 15-20cm ethernet, USB-C to A and one micro-USB to A cables (as seen in photos) to hook everything up.
Print one of each part - I just used PLA.
You will also need a couple of M3 heated inserts / hex bolts to hold on the cover that retains the screen / holds it in place. The positioning of these is quite important for a good fit with the screen (I could have probably improved the design to make them self-centering).
Some self-adhesive rubber pads can be added to the underside/bottom to prevent it from slipping on your desk.
I'm sure this is a bit of a niche design - but hopefully helps my fellow embedded linux developers!
License
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