Fasizi Smart Motor Robot Car Battery Box Chassis Kit Speed Encoder For Arduino Four rounds

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 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. Kindly Note: The car Chassis is transparent, you need to tear out protective paper