AW9523B IO Expansion Board, I2C & 16 I/O Pins for SBC/MCU - Waveshare

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: 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) Specification : - operating voltage : 2.4-5.5v - operating temperature : -40-85℃ - low standby current : lt;0.1µa - controlling interface : i2c - expanted i/o pin : 16 - dimensions : 38x23mm Sources : http://www.waveshare.com/wiki/AW9523B_IO_Expansion_Board