Dear Sir, We have completed several hardware and software project s using WiFi, Ethernet, USB, Bluetooth, GSM and RF using PIC, Atmel, TI ICs. Please see our profile for our past and current projects. We have resonantly done android app communication with bluetooth device. you can see it on our portfolio. We can start your project immediately. We will provide following things . 1. Firmware for Bluetooth connectivity functions. 2. Schematic and Circuit Design with all your requirements 3. customized android app to customize the functionality. Please contact us for more clarifications. Best regards, Lasantha Prasad