MOTION DETECTING ALARAM(PIR sensor).

To design and build a MOTION DETECTING ALARAM(PIR sensor). Basically thais project is made up of 6 critical components; 2 Motion detecting sensor, ARM cortex 3, Keypad, Buzzer and Liquid Crystal Display. a) Motion detecting sensor(PIR sensor): To build a communication with the PIR sensor using wireless communication. The PIR sensor detects when the person came near to the door. After detecting the person in night times, the PIR sensor will send the necessary information to the chip and to the computer. b) ARM CORTEX 3: The main component of this project, the brain and the heart of the system. The ARM cortex 3 communicates with all inputs and output devices. Some example of the function of the ARM cortex 3 would be, sending data to the computer, reading input from the PIR sensor, turning on buzzer if the person came near to the door, recording and storing the data in pc etc… c)Keypad: To ON the PIR sensor when required, the keypad wil placed in a control room. d)Buzzer: Buzzer will go ON if the person near to door. e)Liquid Crystal Display: Show the current time and various messages like; invalid card, valid card, timeout etc… It's my poly project, I hope someone with the right expertise is able to help me. Willing to pay 200-300 just for the work done alone.