Bluetooth Arduino Connection is the companion app for a project where Arduino Uno is connected to an Android device via a Bluetooth module. Using the app it is possibile to send command to Arduino in order to light some LED's and to receive the board status including the temperature measured by a sensor.
The project, including the app code, is described in details on http://www.instructables.com/id/Connect-Arduino-Uno-to-Android-via-Bluetooth/
![HC-05 Bluetooth Module with Arduino | Blinking LED with Phone [Code Explained] | Arduino tutorial 21 screenshot 4](https://i.ytimg.com/vi/uT8-HPMS1cU/mqdefault.jpg)
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