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

Characteristics
1. The I2C bus allows you to expand 16 I/O ports using only two wires
2. Support 16-channel common anode constant current LED driving, 256-step linear dimming, current controllable
3. Output interrupt signal (INT) when the state of an input port changes
4. I2C address configurable by shorting jumpers A0/A1
5. Provide two connector options: PH2.0 header and/or solder pads, allows you to stack multiple I2C modules
6. Built-in 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 degrees c
3. Low standby current: less than 0.1uA
4. Control interface: I2C
5. I/O expansion pins: 16
6. Dimensions: 38x23 mm
List of packages
1. AW9523B IO expansion board x 1
2. PH2.0 6PIN cable x 1