Waveshare AW9523B IO Expansion Board, I2C Interface, Expands 16 I/O Pins

Features
1. I2C bus, allows expanding 16 I/O ports by just using two wires
2. Support driving 16-ch common anode constant current LED, 256-step linear dimming, current controllable
3. Output interrupt (INT) signal when changing the state of an input port
4. I2C address configurable by shorting the A0/A1 jumpers
5. Provide two connector options: PH2.0 header and/or solder pads, allows multi I2C modules to be stacked
6. Onboard voltage translator, compatible with 3.3V/5V level
7. Come with development resources and manual (examples for Raspberry Pi / micro:bit / Arduino / STM32)

Specifications
1. Working voltage: 2.4-5.5V
2. Working temperature: -40-85 degree c
3. Low Standby Current: Less than 0.1uA
4. Control interface: I2C
5. Expansion I/O pins: 16
6. Size: 38x23mm

Package List
1. AW9523B IO Expansion Board x 1
2. PH2.0 6PIN wire x 1