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Special Features

  • 1.On board 3-digit DIP switch is convenient for users to set I2C address
  • 2.I2C interface, less pin occupation
  • 3.Compatible with 3.3V/5V working level
  • 4.PH2.0 interface and 2.54mm spacing pad reserved for easy access to other development boards
  • 5.Open source demo codes available for Raspberry Pi, Arduino and STM32 development boards

Description

Overview:
This product adopts I2C interface to realize 16 I/O port expansion. Support 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:
Size: 45mm(Length)*25mm(width)
Control Chip: MCP23017
Signal interface: I2C
Supply voltage: 3.3V/5V
Expansion I/O: 16
Interrupt pin: INTA、INTB

Interface definition:
VCC: Power supply positive(3.3V/5V)
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-E017×1
2.PH2.0 6PIN connecting cable×1

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