This library is useful for projects in which commands (like AT or ASCII commands) are sent from a microcontroller to a module via UART. This library supports software serial and hardware serial and can check for desired responses from the target module.

To install the library in Arduino IDE, follow the instructions below:

• Click the "Clone or Download" button and click "Download ZIP"
• Click on the ZIP file after it finishes downloading and extrac the folder to your Arduino sketchbook directory. By default this is Documents/Arduino/libraries
• Alternatively, open the Arduino IDE and navigate to Sketch -> Include Library -> Include .ZIP Library and restart Arduino IDE
• That's it! Now in Arduino IDE go to File -> Examples -> ATcommands -> Examples to load the example sketch