However, I am having trouble using a keyboard; after inserting the Pluggy McPlugface adapter, the screen goes immediately black. A few things are strange:
- The serial port works fine with the included controller.
- This only happens if the ATTiny is in the socket; just plugging in the empty board does not cause any issues. This rules out simple issues like shorts on the board, etc.
- The computer doesn't stop execution when the screen goes black; the LEDs continue to flash with the normal pattern, and unplugging the board makes the image come back right where it left off.
- Putting a scope on the H and V sync signals, I cannot see any obvious difference when the board connected. I was not able to trigger on the signal effectively though, so I might be missing something here.
I'll do some more experimentation today, including trying other LCD screens, but I was wondering if anyone had encountered something similar before.
LCD Screen: https://www.amazon.com/gp/product/B01L6 ... UTF8&psc=1