In fact, we wondered if you couldn’t just grab a 3D printer board and modify it for this service without spinning a custom PCB. Fittingly, the example subject is another Arduino Nano.

[David] thinks throwing C at non-programmers isn’t the best way to learn programming, so he developed ArduBlock , a graphical programming language for the Arduino. [David] forked the ...

However, it isn't available for all Arduino boards. Here's a complete list of the only boards you can use with the Debugger ...