DC 6V 2-wheel Robot Smart Car Chassis with Speed Encoder for Arduino. The mechanical structure is very simple and easy to install. An excellent platform for Line Following robots and Maze Solving Robots. The chassis has enough room for all the necessary electronics. This robot chassis together with Arduino UNO R3 makes an ideal DIY project Kit.
This car chassis comes with encoder disks, you can use two encoders with these disks to measure the speed and velocity of the robot car. It gives you the freedom to implement multilpe kind of line following algorithms like PID.