Wiring MCP23017 port expander to Arduino Uno | The missing pieces
Adding an MCP23017 16 port IO expander to Arduino or Esp8266 or Attiny85 or…….. – Arduino, ESP8266, ESP32 & Raspberry Pi stuff
SX1509 I/O Expander Breakout Hookup Guide - SparkFun Learn
PCF8575 I2C IO Extension Shield Module 16 I/O Port Expander For Arduino PI | eBay
NANO I2C IO Expander - Hackster.io
GitHub - thebradleysanders/ESPHome-Arduino-Port-Expander: An Arduino Port Expander for ESPHome with added Arduino Mega 2560 support
Arduino Compatible LCD I2C Port Expander Module | Jaycar Electronics New Zealand
PCF8575 IO Expander Module I2C To 16 IO Integrated Circuits For arduino - AliExpress
Read data from MCP23017 (Port Expander). - YouTube
CONNECTING MULTIPLE SENSORS TO ONE ARDUINO UNO SERIAL PORT : 4 Steps - Instructables
Interface MCP23017 (Port Expander) With Arduino Uno - YouTube
PCF8575 I2C IO Extension Shield Module 16 I/O Port Expander Arduino PI | eBay
Pcf8575 Io Expander Module I2c To 16io For Arduino - Replacement Parts - AliExpress
MCP23008 - i2c 8 input/output port expander : ID 593 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Using GPIO Expander MCP23017 With Arduino (Get up to 144 GPIOs) - Makerguides.com
Arduino Best expander Input/Output | GPIO Expansion module | MCP23017, MCP23S17 - YouTube
Using ESP01 adapter with Arduino Port Expander. Only RX/TX exposed. Can I change the pin definitions and use this? Trying to add esp home to my pool controller : r/Esphome
I2C to GPIO IO Expander Breaktout Board CH423 – ElectroDragon
PCF8574 GPIO Extender - With Arduino and NodeMCU - Hackster.io
I2C Port Expander Board (Arduino code included!) from Celtic Engineering Solutions on Tindie
How to Use Port Expanders on the Arduino - Circuit Basics
Amazon.com: Atlas Scientific 8:1 Serial Port Expander : Electronics
