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 ...

Arduino pinout diagrams, schematic symbols, trace widths for current capacity, and even typical coding functions! The full image is 9,000 x 6,000 pixels and will print nicely at 30 by 20 inches ...

but sometimes I need to know the Arduino pinout. That is why I have written this article. There are many arduino boards with different pinouts. We will start with my favorite: Arduino Uno.

Now that your rotary encoder hardware is up and running it’s time to tell your Arduino what to do with the encoder signals. There are the two basic ways to read a microcontroller’s digital input. With ...