What is NFC chip

NFC is a small chip, also called NFC tag, it is a micro chip, in which you can store commands of less bytes, you can store the commands as you want, when you want This command will start working when you move the device to another NFC device.

To insert commands into the NFC chip, you can go to the Google Play Store and use an app called NFC Trigger. Through this app, you can enter commands inside the NFC tag.