HP41C with Rp Pico attached

[blackjetrock]

This is a project that I have been working on. It is a RP Pico sitting on the bus of an HP41C. It can trace the bus traffic and dump to USB and can also drive the bus and hence emulate a module or modules. It can also enter programs by pressing keys on the keyboard. There's a small OLED display that mirrors the LCD. It is very much a work in progress, so for instance, the entered programs aren't quite right and I've only emulated the MATH module.

https://github.com/blackjetrock/pico41.git

Andrew