Banana Pi I2C IO Expand Module - Part# BPI-A-001
This module is designed specifically for the Banana Pi, IO expansion modules. The
Module use I2C bus to connect to Banana Pi. The module expand 8 Bidirectional
GPIO and with isolation protection function which can effectively control excessive external
voltage. There are 8 I2C address, you can choose one of them through setup the
jumper. Multiple modules can cascade and maximum cascade of 8 modules!
This module is designed specifically to expand the GPIO of the Banana Pi Board. It can effectively solve the banana send IO port. It use PCF8574 chip to expand 8 Bidirectional IO. The module connects to the Banana Pi through I2C bus. There are 8 I2C addresses in the module and the user can choose one of them through setting the “ADDR” jumper. The user also can choose 5V or 3.3V electric level. This module with isolation protection, can effectively prevent external high voltage damage to the Banana Pi. Multiple module can cascade.
8 Bidirectional IO, 8 I2C-address, Isolation protection, Use wiringPi API , sample code, 100 kHz I2C-bus interface (Standard-mode I2C-bus)
Ports：Banana Pi insert port, Banana Pi cascade port, EXT0-EXT7 expand GPIO, Electric level selection jumper, I2C-address selection jumper
Product Parameters: Working voltage: 2.5V-6V, IO voltage: 3.3V or 5.5, Expand 8 Bidirectional IO, I2C bus, 100 kHz I2C-bus interface (Standard-mode I2C-bus), −40°C to +85°C operation
Typical Application：LED signs and displays, Key pads, Instrumentation and test measurement, Numeric Display Driver
How to use：Insert the module labeled “BPI IN”. Pay attention to not reversed the direction!