This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very helpful when you want to measure the outside, ...

This library gives easy control over the 16 pins of a (I2C) MCP23017 chip. This IC is strongly related to the MCP23S17 SPI port expander - https://github.com ...

Assume that you are moving towards a complex microcontroller project bundled with blinkers, beepers, and a display panel. To link a standard 16×2 LCD directly with the microcontroller, for instance ...