In this project the robot car is controlled by a RF remote. The RF module with frequency 433 MHz is used in this project. The RF module consists of RF transmitter and RF receiver. It allows only one way communication. It uses Amplitude Shift Keying (ASK) method for communication.

A camera is installed on the robot car and you can see the video of this camera on your laptop or computer. You can also rotate the camera. The input is taken from different switches which move the robot in left, right, forward and backward direction and camera is also controlled by input switches. At the front end of spy robot car obstacle detector sensor is installed. So, it will not strike into a wall or any other physical thing. Also in dark you can on the lights installed on it.

We can also use cell phone instead of RF.