Not exactly schematics, but [Duckman] has some Arduino pinout diagrams he made using ASCII-art. These could be useful when pasted into source code as comments, documenting the pinouts for your ...

Magic Morse is a mathematical algorithm that [Ray Burnette] wrote a few years ago to make it easy to send and receive Morse code. When he first wrote it, he designed it for a PIC, but since then he… ...