4 Wheel Robot Car Chassis

With a car platform, add some micro-controller (such as arduino) and sensor modules, and program it. then you made your own robot car.
feature:
this car is the tachometer encoder. mechanical structure is simple, it is easy to install.
with a 4 aa battery box and battery case. (batteries are not i ...ncluded.)
size: approx. 20 x 14cm(l x w); wheel size:6.5cm (dia.) x 2.7cm (h)
no add-ins is very convenient, the entire system highly integrated.
can use with other devices to realize function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control.
note: motor power supply is 3v~6v. all the parameter above is tested without load.
package included:
1 x car chassis
4 x gear motor (1:48)
8 x fasteners
1 x power button
24x screw
1 x battery box
10x nut
product type: model building kits