This project is to implement a system which can draw on a television screen using Bluetooth as a wireless communication
The user used a keypad to draw on a TV through a wireless communication. The keypad is to be able to draw and erase on the TV. Bluetooth drawing device is able to transmit and receive data and draw anywhere on the TV, that within a distance of 10 meters
There are two major parts in this Bluetooth drawing device - the TV side and the keypad side. Therefore, there are two microcontrollers used: one for the TV side and one for the keypad side. The first is for controlling the drawing pointer movement. The pointer should be able to move up, down, left, right, and diagonally in all directions. The second thing is to draw on the TV screen. Then an operational amplifier is placed between the receiver data pin and port of PIC MCU to amplify the received signal.
Software vs. hardware generated video signals
To do that we can get support from this link
[url removed, login to view]
design must be use pic 16f877a or 16f877A MCU for both side
Bluetooth module is BTR 310 or bc417143 module for both side in the keypad side a module configure as a transmitter and in TV side it is configure as a receiver