The project began with an Arduino Leonardo, commonly used in projects that aim to create a USB Human Interface Device. [Giovanni] then installed the HID-Project library from [Nicohood]. This was ...

There are some DIY approaches with either a RasPi ZeroW, or Arduino, which I'd like to avoid for now. For now, I just plug my keyboard in through usb. Not a big deal, I've used wired for 20+ years.

An Arduino nestled safely in the LEGO bunker below reads the different resistance values to determine what block was placed where.