Features I2C bus, allows expanding 16 I/O ports by just using two wires Support driving 16-ch common anode constant current LED, 256-step linear dimming, current controllable Output interrupt (INT) signal when changing the state of an input port I2C address configurable by shorting the A0/A1 jumpers
Provides two connector options: PH 2.0 header and/or solder pads, allows multi I2C modules to be stacked Onboard voltage translator, compatible with 3.3V /5V level Comes with development resources and manual (examples for
Raspberry Pi / micro: bit / Ardui / STM32) Package includes 1. AW9523B IO Expansion Board x1 2. PH 2.0 6PIN wire x1
Resources download:
https: //www. waveshare. com/wiki/AW9523B_IO_Expansion_Board