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

I2C-Bus Address scanner for Arduino - download here

Arduino demo sketch for I2C Slave address 0x27 - download here

Arduino demo sketch for I2C Slave address 0x3F - download here

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