IO Expander for ESP32, ESP8266, and Arduino : 24 Steps - Instructables
IO Expander for ESP32, ESP8266, and Arduino : 24 Steps - Instructables
Need help with my wiring ESP32 and MCP23017 : r/esp32
IO Expander for ESP32, ESP8266, and Arduino : 24 Steps - Instructables
Adding an MCP23017 16 port IO expander to Arduino or Esp8266 or Attiny85 or…….. – Arduino, ESP8266, ESP32 & Raspberry Pi stuff
ESP32-WROVER-KIT
IO Expander for ESP32, ESP8266, and Arduino : 24 Steps - Instructables
PCF8574 GPIO Extender - With Arduino and NodeMCU - Hackster.io
Waveshare Dual GPIO Expander Compatible with Raspberry Pi Pico, Two Sets of Male Headers for Connecting More Expansion Modules: Amazon.de: Computer & Zubehör
Maximising Arduino Raspberry Pi ESP32 I/O with MCP23017 I2C GPIO Expander | eBay
Extending Arduino/Esp32/STM32 GPIO Pins – PART 2 - Maker and IOT Ideas
How to Use PCF8574 GPIO Extender With Arduino or ESP32 - Hackster.io
PCF8574 i2c digital I/O expander: Arduino, esp8266 and esp32, basic I/O and interrupt – Part 1 - Renzo Mischianti