LED timed to blink on/off every second — first Arduino project
A simple Arduino-based timed LED and resistor circuit, demonstrating understanding of charge flow, I/O pins, and how electrons flow on a breadboard.
- Arduino Uno
- 1x LED
- 1x 220Ω resistor
- Breadboard + jumper wires
| Component | Arduino Pin |
|---|---|
| LED (+) | Pin 13 |
| LED (-) | GND via 220Ω resistor |
- Digital output with
digitalWrite() - Timing with
delay() - Basic circuit fundamentals on a breadboard