“This project is a small keyboard where the user types in Morse code and characters are output to an attached computer.
The unit was inspired by the US Dot-dash coder (CO-3B, MX-4495).
I posted my first generation version on Arduino project hub and since then I have improved my project.
This version features 5 software debounced switches and 4* 5Volt indicator LEDs wired up to a Chinese Pro Micro clone, all mounted on a custom PCB.”