Send characters from a raspberry pi to a teensy via serial cable. This acts like a computer keyboard.
Install video here: https://www.youtube.com/watch?v=gNJrpqBjSZs
- Load arduino program to Teensy 3.6 and run
- Load python program to Raspberry Pi and run
- Connect via serial ports
- Type characters to the Raspberry Pi. They will be transmitted from the Raspberry Pi to the Teensy (acting as a keyboard) and shown on the computer screen.