PCF8574 library. i2c digital expander for Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266. Can read write digital values with only 2 wire. Very simple to use and encoder support ...

Since this library has been published, Microsoft has created newer versions of the Azure SDK for usage with the Espressif ESP32. This new library is better suited for microcontrollers, great for ...