This robot car works with ultrasonic sensor HC-SR04 and powered with used 12V motorcycle battery.
Step 1: Body of the Robot Car
Make the robot body using Plywood and a flat piece of wood.Cut the plywood into a 9 inches by 6 inches small piece.
Step 2: Parts Needed
The parts needed for this project is not so much expensive.we need five important parts which are arduino uno, one HC-SR04 ultrasonic sensor, four 150 RPM geared motors, a L298 motor driver and a used 12 V motorcycle battery.