# I2C 4CH AC LED Dimmer Module

I2C 4CH AC LED light dimmer module.  Arduino and Raspberry Pi compatible. Ideal for smart home projects. 220V/110V 50Hz/60Hz

- **Seller:** [Olegs Bugrovs's store](https://lectronz.com/stores/krida_electronics), Riga, Latvia
- **Price:** €22.06 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Product page:** https://lectronz.com/products/i2c-4ch-ac-led-dimmer-module

## Images

![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzEsInB1ciI6ImJsb2JfaWQifX0=--2d39864a36a79b8aa221856106865df7675d2ad6/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-01.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzIsInB1ciI6ImJsb2JfaWQifX0=--694ec1bf18ef36c43b504a67ebd63c34e7e84143/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-03.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzMsInB1ciI6ImJsb2JfaWQifX0=--7b9b536b38d013e5bebc4f951fccbb05d54cce10/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-02.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzQsInB1ciI6ImJsb2JfaWQifX0=--ffa71185e62179ff82d2d8c7ae7e033001f4252e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-04.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzUsInB1ciI6ImJsb2JfaWQifX0=--c53b2ba1f0659de4f128efe852443f0e9909f244/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-06.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzYsInB1ciI6ImJsb2JfaWQifX0=--6d485ae2c60fe8e409f92f0aea568bfc7a9c22fe/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-07.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzcsInB1ciI6ImJsb2JfaWQifX0=--312b9886a92e998316f955f1fba0eaaf91d9010e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-08.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzgsInB1ciI6ImJsb2JfaWQifX0=--b7be49dbc2d7e553fc77b6a9466f68631f3c85e8/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-09.jpg)
![I2C 4CH AC LED Dimmer Module](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjcyNzksInB1ciI6ImJsb2JfaWQifX0=--23978178f3ea388c66410a1a6bd6d6a453e68140/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2021-01-12T18-3A47-3A35.540Z-05.jpg)

## Description

DEVICE FEATURES:

**Only 4 wires are  needed to control this board !**

With this module, you can control the intensity of incandescent lamps, LED dimmable bulbs, power heating elements or fan speed controlled through a   microcontroller or Arduino/Raspberry boards.

Compatible with any Arduino, Raspberry or microcontroller.


- Dimming method - leading edge
- Working voltage -  110 or 240 VAC
- Current per  channel - up to 3A
- Compatible with  50Hz and 60Hz AC Line
- AC Line  autodetect function
- PCB dimensions -  140mm x 60mm
- Distance between  holes: vertical 51mm, horizontal  131mm
- Mounting holes  diameter: 3.2mm
- 100kHz I2C bus  interface
- I2C bus pull up  switch on board
- I2C device  address select switch on board
- Can be connected  up to 8 devices on I2C bus (8  devices x 4 = 32 channels!!!)
- 50HZ LED - show  detected AC 50HZ Line
- 60HZ LED -  show detected AC 60HZ Line
- BOTH LED Flashing - AC Line not detected


![PINS descriptions](https://image.ibb.co/h9p44b/description.png "enter image title here")

![I2C Slave Addresses](https://image.ibb.co/nOsfcw/address.png "enter image title here")

I2C-Bus Address scanner for Arduino - [download here](https://drive.google.com/file/d/0B6GJokXFb5oESUs5eDI1UFlMclE/view?usp=sharing)

Arduino demo sketch for I2C Slave address 0x27 - [download here](https://drive.google.com/file/d/0B6GJokXFb5oEWVBoaG1FTWlORkE/view?usp=sharing)

Arduino demo sketch for I2C Slave address 0x3F - [download here](https://drive.google.com/file/d/0B6GJokXFb5oETy1JcGRHUkUySEU/view?usp=sharing)

**How to control board via I2C protocol? Only with 3 bytes!**

![I2C 3 Bytes Protocol](https://preview.ibb.co/ievcPb/bytes.png "enter image title here")

![Arduino Wiring](https://image.ibb.co/m2vBjb/wiring.png "enter image title here")