Intelligent car chassis Tracing car Robot car chassis with code disk
* Ideal for DIY
* Mechanical structure is simple, it is easy to install.
* This car is the tachometer encoder.
* With a 4 AA battery box and power switch. (Batteries are not included.)
* Can be used for distance measurement, velocity.
* Can use with other devices to realize function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control.