The main aim of this project is controlling of computer mouse operations based on the input from android mobile phone through Bluetooth. The message will be transmitted to the PC. At PC section, end, this can be seen on PC. If we click on specific button, the cursor also moves along with the movement of the object.   Bluetooth is an open standard specification for a radio frequency (RF)-based, short-range connectivity technology that promises to change the face of computing and wireless communication. It is designed to be an inexpensive, wireless networking system for all classes of portable devices, such as laptops, PDAs (personal digital assistants), and mobile phones. It also will enable wireless connections for desktop computers, making connections between monitors, printers, keyboards, and the CPU cable-free.   The input and output port of the controller are interfaced with input and output modules like Bluetooth and PC. In other words micro controller acts as a communication medium for all the modules involved in the project. The input to the PC is message from android mobile using Bluetooth module. The message received by the Bluetooth is transmitted to the PC through microcontroller, so that at PC section this can be seen on PC, embedded C code in microcontroller.       The major building blocks of this project are:  

1. PC.
2. Regulated power supply.
3. Arduino pro mini-Microcontroller.
4. Bluetooth module.

        Software’s used:  

• Arduino IDE for compiling and dumping code into Microcontroller
• Express SCH for Circuit design.

        Block Diagram:                          

video: