Assume that you are moving towards a complex microcontroller project bundled with blinkers, beepers, and a display panel.

This library gives easy control over the 16 pins of a (I2C) MCP23017 chip. This IC is strongly related to the MCP23S17 SPI port ...

This library is to use the TCA6408A I2C 8 bit IO expander. This device supports a voltage range of 1.65 .. 5.5 Volt. It allows ...