The PCF8574_LH library provides a simple interface for controlling the PCF8574 I/O expander using the I2C communication protocol. It allows you to read and write values to the PCF8574's registers, ...

A compact IoT-based power and energy monitoring system using an ESP32 microcontroller, I2C-based LCD, and Blynk for real-time data visualization. The project includes an I2C scanner utility and a ...