DIY digital piano: Sensors and Electronics

This is an offshoot of my DIY Digital Janko Piano project, this time focusing on the sensors and electronics. In the main thread and other sub-threads I will cover the Janko layout, Hickman action, assembly, etc. However in this thread I will focus on the electronics, firmware, and board communications specifically. I will also later on add the discussion about the mini-pc, DAC, MIDI communication, and several others that sort of fall under the 'electronics' umbrella as they arent really enough to make a new topic about.

For now, here is the video I put together about the sensors and electronics. I will see about adding some more information here in a bit.

Very cool, thanks for sharing. I like how you solved the cabling issues by the modular approach with almost no cables. Incredibly neat.

I also like your non-multiplexed way of setting up the sensors, which was what I had initially done when I was dealing with the Raspberry Pico. It made debugging harder for me, since it made a misbehaving middle board affected and made "unreachable" everything to its "right" (I had some weird race conditions to debug in the board-to-board communications, but those were due to idiosyncrasies of the Pico itself, so you won't encounter them -- and hopefully nothing similar either).

Looking forward to the next steps