The C-code of a master and slave that communicate over I2C. The code was written in Atmel Studio and is supposed to demonstrate the functionality of the I2C communication between two Arduino UNO/NANO.
- reads the state of a button
- Send the button state over I2C to the slave
- controls the I2C communication
- Displays on an LCD 20x4 the state of the button: "Btn. pressed" or "Btn. not pressed"
