LED Brightness Control Using PWM

Solving Approach:

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Code

/*Paste your code here*/
const int lpin = 4;
void setup()
{
	pinMode(lpin, OUTPUT);
}

void loop()
{
   for(int bri = 0;bri<=255;bri++)
   {
      analogWrite(lpin, bri);
      delay(2000/256);
   }
   for(int bri = 255;bri>=0;bri--)
   {
     analogWrite(lpin, bri);
     delay(1000/256);
   	
   }

}


 

Output

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