efter skolan Otrolig andra arduino set pin Liknelse Snedstreck Lita på
Amazon.com: KeeYees 3 Set Microcontroller Development Board for Arduino IDE with USB Cable and 2.54mm Straight Pin Header + 3pcs 40Pin 20cm Female Male Jumper Wires : Electronics
3 Pin Toggle Switch Arduino: How to wire it up in 2 different ways.
The Full Arduino Uno Pinout Guide [including diagram]
Arduino Uno Pin Names - API references and tutorials | Mbed OS 6 Documentation