The Arduino MKRWAN library is a software library designed to work with the Arduino MKR WAN 1300 and MKR WAN 1310 boards. These boards are designed to provide a simple and cost-effective way to connect devices to the LoRaWAN® network, a Low Power Wide Area Network (LPWAN) protocol that allows for long-range wireless communication with low power consumption.

The MKRWAN library provides a set of functions that allow you to easily communicate with the LoRaWAN® network. This includes functions for configuring the radio module, sending and receiving data, and managing the device’s connection to the network.

The library is open source and is designed to be used with the Arduino Integrated Development Environment (IDE), making it easy for developers to get started with LoRaWAN® communication using the Arduino platform.

You can find more information on the library at Arduino library reference page.

Finally, you can find the source code at gitHub page of the library. You don’t have to download the repository, it will be installed at the course of the activity using Arduino IDE.