Arduino Setup
Arduino Tutorials
This example assumes you are using the latest version of the Arduino IDE on your desktop. If this is your first time using Arduino IDE, library, or board add-on, please review the following tutorials.
- Installing the Arduino IDE
- Installing an Arduino Library
- Installing Board Definitions in the Arduino IDE
SparkFun I2C Expander Arduino Library
The SparkFun I2C Expander Library makes working with 4-bit and 8-bit I2C digital I/O expanders very easy.. You can install the library with the Arduino Library manager tool by searching for "SparkFun I2C Expander". If you'd prefer a manual install, you can download a ZIP of the library here.