The PCF8574 is a device that allows users to expand the number of digital input/output pins of a microcontroller via the I2C bus (Texas Instruments, 2016). The Bonezegei library provides functions for ...

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, ...