Here is a simple Android Bluetooth RemoteControl Project for 2 Relays / Device using 89c2051Micro-controller and HC-05 Bluetooth Module.You can download circuit and hex file here http://www.hobbyprojects.com/bluetooth-device-control/App Instructions:1. First make sure your HC-05 Bluetooth Module is paired withyour mobile. The default password for pairing is "1234" or "0000".Check the manual of Bluetooth module.2. When you press ON button for Device 1 it sends the data"A" to Bluetooth Module connected with a circuit. Microcontrollerturns ON the Device 1 relay when it detects "A".3. When you press OFF button for Device 1 it sends the data"a" to Bluetooth Module connected with a circuit. Microcontrollerturns OFF the Device 1 relay when it detects "a".4. When you press ON button for Device 2 it sends the data"B" to Bluetooth Module connected with a circuit. Microcontrollerturns ON the Device 2 relay when it detects "B".5. When you press OFF button for Device 2 it sends the data"b" to Bluetooth Module connected with a circuit. Microcontrollerturns OFF the Device 2 relay when it detects "b".

Control your devices using Micro-controller 89c2051 and BluetoothModule HC-05

Control your devices using Micro-controller 89c2051 and BluetoothModule HC-05

Control your device using Micro-controller 89c2051 and BluetoothModule HC-05

Tilt your Android smartphone to control your own Robot