Overview:
This MCP23017(SG-IO-E017) expansion module adopts I2C interface to realize 16 I/O port expansion.
It supports for Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+/4B etc models as well as Ardui. and STM32.
We provide C and Python demo codes for the Raspberry Pi, as well as Ardui. and STM32 demo codes, that can implement input testing, output testing, and interrupt testing.
Specifications:
Dimensions: 45mm(Length)*25mm(width)
Control chip: MCP23017.
Signal interface: I2C.
Supply voltage: 3.3 V/5 V.
Expansion I/O: 16.
Interrupt pin: INTA、INTB.
Interface definition:
VCC: Power supply positive (3.3 V/5 V).
GND: Power supply ground.
SDA: I2C data line.
SCL: I2C clock line.
INTA: PA port interrupt pin.
INTB: PB port interrupt pin.
Package contents:
1. SG-IO-E017 IO Expansion Module x1
2. PH2.0 6PIN connecting cable x1