About Bluetooth Command Line
That application is not develop for specific IoT cards. You can manage Bluetooth module of your IoT cards with that application. You just install that application then you will be manage your IoT cards.
Currently This application is connected to your cards, it sends zero. You can get a feedback menu from you cards using the following.
Download and install
Bluetooth Command Line version 1.0 on your
Android device!
Downloaded 100+ times, content rating: Everyone
Android package:
com.ozel.harun.managementarduino, download Bluetooth Command Line.apk