What you'll learn
- Use digitalRead to detect a button press.
- Use digitalWrite to switch LEDs on and off.
- Write your first if / else logic in C++.
What's in the kit
- Arduino UNO
- Breadboard (half-size)
- Green LED (5 mm)
- Red LED (5 mm)×2
- Tactile pushbutton (4-pin)
- 220 Ω resistor×3
- 10 kΩ resistor (pull-down for button)
- Jumper wires (M-M)×8
Protocol: digital