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AC Light Dimmer Module with fade effect

This post shows how to fade your 220V/110V LED light using AC Light Dimmer Module with Arduino.


AC Light Dimmer Module

AC Light Dimmer Module 1 Channel 3.3V/5V Logic AC 50hz 60hz 220V 110V

Buy at lowest price from Amazon

This module works on PWM ( Pulse Width Modulation Control ) in simple words we decrease or increase the duty cycle to set the intensity of the LED.

PWM is also used to

  • Control dimming of RGB strip.
  • Control the direction of the servo motor
  • Control the speed of the motor

The main advantage of PWM light dimmer is that it very energy efficient.

light Fader

You can buy it from here.

Parts Needed

You need to have the following parts

  • Arduino (Any version)
  • 1x AC Light Dimmer Module 1 Channel
  • 1x 220V/110V LED
  • Jumper Wire

Arduino Setup

Wiring Light Dimmer Module

Wiring Relay

Pin Wiring Dimmer to the Arduino
VCC 5V or 3.3V
Z-C PIN – 2



Schematics For Arduino

Assemble all the parts by following the schematics below:

AC light dimmer schematic

Connect the LED lamp to the AC Load and dimmer to the AC input.

Coding Arduino

Note: There is a different setting for 50Hz and 60Hz supply. Change the values in the code accordingly.

  • Adjust the Dimming Range accordingly ( For us 880 to 902 worked).
  • Upload the code to the Arduino.

This Post Has One Comment

  1. I want to run this dimmer with ATtiny85. It’s possible?

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