Running I2C on Pro Micro (2) - Connecting with I2C
It seems that I2C is often used to connect multiple ICs and perform processing in custom keyboards and sensor modules. In this series, we will use the I2C port on the Pro Micro to operate an IO expander. In this second article of the series, we will look at the basics of I2C and its use on the Pro Micro.
Tags: i2c, arduino, keyboard