Amazon.com: CQRobot Ocean: MCP23017 IO Expansion Board Compatible with Raspberry Pi/Micro:bit/Arduino/STM32 Motherboard. I2C Interface, Expands 16 I/O Pins, Up to 8 Expansion Boards Can be Used Simultaneously. : Electronics
Raspberry Pi I2C 4×4 matrix keypad with MCP23017 and Python | Mikronauts.com
Python & CircuitPython | Using MCP23008 & MCP23017 with CircuitPython | Adafruit Learning System
Python & CircuitPython | Using MCP23008 & MCP23017 with CircuitPython | Adafruit Learning System
Buy IO Pi Plus MCP23017 - expander for Raspberry Botland - Robotic Shop
Raspberry Pi I2C 4×4 matrix keypad with MCP23017 and Python | Mikronauts.com
IO Expansion
How to Use Port Expanders on the Arduino - Circuit Basics
How To Use A MCP23017 I2C Port Expander With The Raspberry Pi - Part 1 - Raspberry Pi Spy
How To Use A MCP23017 I2C Port Expander With The Raspberry Pi - Part 3 - Raspberry Pi Spy
display - 16x2 LCD displaying blocks when connected with MCP23017 - Raspberry Pi Stack Exchange
raspberry pi - Getting the info from MCP23017 with Python - Stack Overflow
four mcp23017 on a raspberry pi zero is possible? - Raspberry Pi Forums
Hooking it all up | MCP230xx GPIO Expander on the Raspberry Pi | Adafruit Learning System
GitHub - GillesC/MCP23017-RPI-Lib: Library to access the MCP23017 including interrupts
32 Channel Digital Expansion HAT for Raspberry Pi - RobotShop
Raspberry Pi I2C 4×4 matrix keypad with MCP23017 and Python | Mikronauts.com
I2C with Raspberry Pi - Tutorial Australia
MCP230xx IO Expander | Character LCD with Raspberry Pi or BeagleBone Black | Adafruit Learning System
gpio - Daisy Chaining MCP23017 & Addressing - Raspberry Pi Stack Exchange
GitHub - custom-build-robots/Raspberry-Pi-MCP23017-library: Easy to use library for the MCP23017 connected to a Raspberry Pi
Connecting a mcp23017 to your Raspberry Pi | Pi bits
Using the MCP23017 port expander with WiringPi2 to give you 16 new GPIO ports – part 3 – RasPi.TV
MCP23017 Raspberry Pi Python Coding - Python - NCD.io Community
Python & CircuitPython | Using MCP23008 & MCP23017 with CircuitPython | Adafruit Learning System
Expand Raspberry Pi GPIOs with I2C Port Expander
