gpio-expander

Industrial DIN-rail GPIO expander with MCP23017 providing 16 I/O channels via I²C. Features optoisolated inputs, high-current outputs, selectable 5V/24V power, and hardware address configuration with 7-segment display. Ideal for PLC expansion and industrial automation.

A small gift. Heart shape PCB with STM32L0 microcontroller, gpio expander, accelerometer and some fancy leds.

Arduino Library to facilitate I2C communication between Arduino and Renesas GreenPAK devices. These devices were originally created by Silego, Then Silego was acquired by Dialog Semiconductor, and eventually Dialog was acquired by Renesas.

Driver for PCA9534 and PCA9534A 8-bit I/O expander

A sleek, efficient Arduino library for seamless control of the MCP23017 I/O expander. Simplify your GPIO!

CircuitPython helper library for gpio expanders (Texas Instrument PCA95xx and TCA95xx chips).

MCP230XX driver for ESP32

Python class for the CAT9555/TCA9555 16-bit I2C GPIO expander.

attiny usi twi i2c simple examples and pcf8574 gpio expander. USI used by attiny84, attiny85, attiny2313 and other atmel chips.

PCA9538 implimentation for Wokwi simulator

Library for LCD Displays using I2C PCF8574, MCP23008, etc.

Driver for PCF8574 and PCF8574A 8-bit I/O expander

HD44780 LCD over PCF8574 I2C backpack via MCP2221A (Python).

Arduino library for the 7Semi MCP23017 I/O Expander Module. Provides 16-bit GPIO over I2C with pinMode, digitalRead, digitalWrite support.

ESP32 driver for the MCP23008 GPIO expander with I2C communication handled by i2c_manager

HAL Driver Library for the MCP23017 I/O Expander