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

DESCRIPTION

AW9523B IO Expansion Board

Controlled via I2C Bus

Allows Using 4 Expansion Boards At The Same Time, Expanding Up To 64 I/O Ports

Features At A Glance

• 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: PH2.0 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 / Arduino / STM32)

Specifications

Header Definition

Hardware Connection

Connect To Raspberry Pi

Outline Dimensions