Running I2C on Pro Micro (1) - Pro Micro Setup
In custom keyboards and sensor modules, it is common to connect multiple ICs using **I2C** for processing. In this series, we will use the I2C port on the Pro Micro to operate an IO expander. In this first article, we will set up the Pro Micro on a breadboard. Although I2C is not involved yet, this is an important step for the future. Note that this is an experiment, so we will implement it on a breadboard.
Tags: i2c, arduino, keyboard