LED Brightness Control Using Potentiometer

Solving Approach:

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Code

/*Paste your code here*/

const int potPin = A0;     // Potentiometer input
const int ledPin = 9;      // PWM output pin

void setup() 
{
  pinMode(ledPin, OUTPUT);
}

void loop() 
{
  int adcValue = analogRead(potPin);     // 0 – 1023
  
  int pwmValue = adcValue / 4;           // Scale to 0 – 255
  
  analogWrite(ledPin, pwmValue);         // Update brightness
}

 

Output

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Photo of Output

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