This was originally designed for the E-Ale (Embedded Apprentice Linux Engineer) course for linux.conf.au 2019. These were used as teaching aids to help folks understand how to access various GPIOs, I2C, SPI, etc from the core Linux operating system. It’s designed to fit over the top of an rPi zero, though anything with a compatible 2x20 pin header should be able to make use of this board. It uses through hole modules for the individual sensors, making this fairly approachable for an individual to solder up. One thing to be aware of us the sub-assemblies do come close to the top of the 2x20 pin header, and you will want to make sure you are careful about potentially contacting the back of the 2x20 connector and the bottom of the assemblies (in particular the OLED screen has a tendency to have a component that’s very close, just be aware of that).

Honestly this is a great way to get a one stop smattering of being able to play with low speed i/o devices, and in an easy to solder package