In this chapter, we will see the capabilities of integrating the Arduino Near Field Communications (NFC) shield from Seeed Studio with an NFC-enabled Android application that uses the Android Beam technology to send a message from the Android app to the NFC shield antenna. NFC allows instant communication between two devices that are close to each other, which makes it the perfect technology to open door locks or for payment services.

We will make a home automation application in this chapter. The NFC shield will be connected to the Arduino Uno board, along with the relay. Therefore, we will be able to switch the relay on or off depending on the message sent by the Android application.

This baseline project will help you develop interesting projects that use NFC and will potentially expand the capabilities of such a project.

The following will be the major takeaways from this chapter: