Arduino Blink Example

This folder contains a simple Arduino Blink sketch (blink.ino) that toggles the built-in LED on and off every second.

Quick upload using Arduino CLI (replace COM3 and board as needed):

arduino-cli compile --fqbn arduino:avr:uno blink.ino
arduino-cli upload -p COM3 --fqbn arduino:avr:uno blink.ino

Or open blink.ino in the Arduino IDE and upload to your board.