Digital Io Expander

Arduino Best expander Input/Output | GPIO Expansion module | MCP23017, MCP23S17

i2c IO expander digital input board for ESPHome HA - KinCony DI8

GPIO Expander COMPLETE User Guide (for beginners)

RGB Engineering

MCP23017 I2C I/O Expander Module

The Great Search - I2C IO Expander (Since we can't get MCP230xx) @Adafruit @DigiKey

Adafruit Industries

MCP23017/MCP23S17 16-Bit I/O Expander with Serial Interface (I2C/SPI)

Azat Pürliýew

Allen & Heath Dante I/O Expanders

AllenandHeathUK

PCF8574 GPIO Extender - With Arduino and NodeMCU

Crazy Couple DIY

MCP23017 Port Expander and ESPHome: Add More I/O Pins to Your Project

PCF8574A IO Expander use for inputs and outputs

ATtiny85 - PCF8574 I/O Expander

PCAL9722 Ultra-low Voltage 22-bit I/O Expander

NXP Semiconductors

Adding I/O with MCP23017 - Collin’s Lab Notes #adafruit #collinslabnotes

Adafruit Industries

PCF8574p 8bit I.O. Expander

JP’s Product Pick of the Week 8/23/22 PCF8574 GPIO Expander @adafruit @johnedgarpark #adafruit

Adafruit Industries

Arduino - 16 Bit, parallel I/O Expander (MCP23016)

Ripl

Not enough Arduino Pins? Try this I2C Port Expander! | Chip Tips #1: PCF8574

Terminal Curiosity

PCF8574A IO Expander used for outputs

PCF8574 I2C GPIO Expander Tutorial

PCF8574 8-Bit I/O Expander Arduino LIbrary

Ricardo Caratti