Arduino Projects Ideas - Potentiometer-Controlled LED Brightness
Components:
Potentiometer
LED + 220Ω resistor
Arduino UNO
Wiring:
Potentiometer → A0
LED → Pin 9 via 220Ω resistor
Code:
void setup() {
pinMode(9, OUTPUT);
}
void loop() {
int val = analogRead(A0);
analogWrite(9, val / 4);
}
