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Arduino Code: Potentiometer-Controlled LED

LEDs arduino Negative legs GND Positive leg (red) Pin 12 Positive leg (blue) Pin 11

cpp
// Constants
const int potPin = A0;     // Pin where potentiometer is connected
const int ledPin = 9;      // Pin where LED is connected (PWM pin)

// Variables
int potValue = 0;          // Variable to store the potentiometer value (0-1023)
int ledBrightness = 0;     // Variable to store the converted LED brightness (0-255)

void setup() {
  // Set up the LED pin as an output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Read the potentiometer value (from 0 to 1023)
  potValue = analogRead(potPin);
  
  // Map the potentiometer value to a range of 0 to 255 (for PWM)
  ledBrightness = map(potValue, 0, 1023, 0, 255);
  
  // Set the LED brightness using PWM
  analogWrite(ledPin, ledBrightness);
  
  // Small delay for stability
  delay(10);
}

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