MCP23017-python

MCP23017 GPIO-Expander Python Library for RaspberryPi

MCP23017 Datasheet

Features

currently implemented features:

• set pin mode INPUT or OUTPUT
• set pin mode of all pins
• digital write pin HIGH or LOW
• digital read pin state
• digital read pin state of all pins
• enable interrupt on a pin
• enable interrupt on all pins
• enable interrupt mirroring of BANK_A and BANK_B
• read interrupt flags to see which pin triggered the interrupt
• read the interrupt capture value of the pin when the interrupt happened

Getting started

Setup a MCP23017 object

from mcp23017 import *
from i2c import I2C
import smbus

i2c = I2C(smbus.SMBus(1))  # creates a I2C Object as a wrapper for the SMBus
mcp = MCP23017(0x20, i2c)   # creates an MCP object with the given address