Key Features:
 
3.3~5.0V wide operating voltage
3.3V I2C digital level, optimized for 3.3V main control board such as Raspberry Pi, and also compatible with 5V main control board such as Arduino UNO
Gravity I2C Connector, plug and play, no welding
On-board I2C address dial switch, the I2C address can be set
Support the cascade of 8 multiplexer on address 0x70~0x77
4pin color-coded headers, simple and clear