LED Brightness Control Using Potentiometer

Solving Approach:

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Code

/*Paste your code here*/
#define potpin A3
#define ledpin 3
int potval = 0;
void setup()
{
  pinMode(ledpin, OUTPUT);
}

void loop()
{
  potval = analogRead(potpin); // from 0 to 1023
  uint8_t pwm_level = potval/4; // normalize to 0-255
  analogWrite(ledpin, pwm_level);
  delay(10);
}

 

Output

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Photo of Output

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