LED Brightness Control Using PWM

Solving Approach:

How do you plan to solve it?

R = 220
anode connected to pin5: ~980Hz PWM frequency

Code

/*Paste your code here*/
#define led_pin 5
void setup()
{
  pinMode(led_pin, OUTPUT);
}

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


 

Output

Video

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Photo of Output

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