Remote controlled car designed and developed by H.S.R

View of the car from different sides:

The RF remote controlled four wheeler mini prototype car is powered by batteries whose various movements can be controlled  manually. If we want  to drive the car manually then we can do that with the help of the wireless remote control system which is also powered by  battery  and  can be carried anywhere. The  car receives its  commands  from the wireless remote controlled system through the keypad in the remote. 

At the heart of the car is the micro-controller P89V51RD2FN which controls functioning and responsible for processing the input signals received from transmitter.

The control unit in the  car  receives its  commands  from the RF remote control system through the keypad in the remote.  A four bit digital data is generated according to the pressed key in the keypad and this data is then encoded and then passed serially to the RF transmitter. The transmitter unit modulates the data with a carrier of 433 MHz and transmit it in the air through its antenna.

The RF receiver unit in the car receives the data and demodulates it and passes the original data serially to the  decoder unit. The decoder unit decodes the data and provides the data in parallel form to the micro-controller. The controller unit then process the data according to the software burned inside the flash ROM of the micro-controller and controls the motion of the car accordingly.