OVERVIEW:
This project is a extension for the project cell phone operated land rover where mobile is use to control the bot
Which not all ways possible to operate the bot with the cell ,so i use the RF Tx and RX to control in such
a way that we can operate the bot with a cell or by Tx ,the Tx side micro AT89S52 is used which generates
the code which are required to drive the bot forward,left etc....
CODE:
In the code i have used 5 pins of p1 to control the bot and the other 3 pins i have keeped for late modification
the o/p signal of the 3 pins not use so even though it press no effect on bot
The equivalent signal which is required for atmega16 to drive the motor via L293d is o/ped by the Tx micro
TX/Rx pair: http://www.nex-robotics.com/products/wireless-devices/434-mhz-ask-transceiver-module.html
Encoder/Decoder pair: HT12E and HT12D
IF U HAVE MADE THE PROJECT CELLPHONE OPERATED LAND ROVER WITH OK TESTED ,THEN MAKE THE RX ON THE SEPARATE PCB AND JUST CONNECT THE DECODER O/P TO THE PORTA OF ATMEGA16
YOU HAVE TO MANAGE THE POWER SUPPLY FOR THE MAIN BOARD AND THE Rx AS U WISH AND IF THERE IS SOME PROBLEM FOR SUPPLY THEN MAKE A SEPARATE SUPPLY FOR Rx AND (note:if 2 separate power supplys r used then common both the GND ) FOR THE MAIN BOARD
Transmitter
Receiver
Complet Ckt and Code
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