Write an Android application: Proof of concept

Our module uses BLE for communication. The App should scan for devices. Select the device, connect/pair to the device, and then send data through public profiles/services. Details of Immediate alert profile is copied below, the gatt file: Our Gatt file : <?xml version="1.0" encoding="UTF-8" ?> <configuration> <!-- 1800: org.bluetooth.service.generic_access --> <service uuid="1800" id="generic_access"> <description>Generic Access</description> <characteristic uuid="2a00"> <properties read="true" const="true" /> <value>BlE113 GEN1</value> </characteristic> <characteristic uuid="2a01"> <properties read="true" const="true" /> <value type="hex">0100</value> </characteristic> </service> <service uuid="1802" advertise="true" > <description>password Service</description> <characteristic uuid="2a06"> <properties write_no_response="true" /> <value length="4" /> </characteristic> </service> </configuration> Design two buttons for ON and OFF For ON state: 1. send AB (hex) 2. send CD (hex) 3. send 00 (hex) For OFF state: 1. send AB (hex) 2. send CD (hex) 3. send 01 (hex)