Fading LED (PWM) Project through Arduino

 

Fading LED is not a Tough or critical Project but its application are very important. my means we can control LED for decoration lights and we can use same application for to control BJT conduction level unconditional as well conditional which's useful in some other projects. We can control the speed of DC motor also.

Circuit diagram:  

Its Proteus view but fading of LED simulation is not good in Proteus you should use PICSimLab Software or implement it practically.

PICSimLab:

• Visit my Article How to Use PICSimLab
• Download and Install PICSimLab

Coding:

// www.Elekronicsgarage1.blogspot.com //

int ledPin = 9;    // LED connected to PWM based digital pin 9

int fadval = 0;   // fading start value

void setup() {

  // nothing something in setup

}

void loop() {

  // I am fading from mini to max

  for (fadval = 0 ; fadval <= 255; fadval =fadval+5) // Start from; max; increasing step

  {

    analogWrite(ledPin, fadval);

    delay(50); // delay of 50ms in dimming effect

  } }

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