Arduino HP-25 Simulator

[Mike T.]

I assume your emulator is written in C? What library did you use for the graphics?

Are you planning on publishing the code anywhere?

I did something similar using a Raspberry Pi with a PiTFT recently using X11 and can say that I understand the difficulty you had when it came to calibrating the screen, it was a real pain in the rear.

If you want to improve the accuracy of your emulator and actually simulate the original Woodstock processor (and others) feel free to borrow the processor emulation here. (Note that other simulators are available!)