Sell New Avoidance tracking Motor Smart Robot Car Chassis Kit ... best price

New Avoidance tracking Motor Smart Robot Car Chassis Kit Speed Encoder bat.tery Box 2WD Ultrasonic module For Arduino kit Our car chassis has the following advantages: 1 mechanical structure is simple and very easy to install. 2 car comes with 20 wire tachometer yards, with photoelectric gun shop can be quickly formed a gun systems. You can speed, distance, composed of closed-loop systems. 3 car with four on the 5th battery compartment, convenient to the entire system power supply. At the same time equipped with a switch, easy start-stop system. Without additional very convenient, so that the whole system is highly integrated 4 car shop with L298N driver module, four tracking module, as well as 51 control unit seamless, simple and good-looking components of the system! Shipping list: Car chassis 1 Car Wheels 2 DC Gear Motor 2 48: a deceleration DC motor (otherwise 120: 1 Optional) 20 line gun code disk 2 Fasteners (high intensity black acrylic) 4 Caster 1 Four battery box 1 Quality Rocker Switch 1 Assembly drawing 1 Several screw nut V5 shield 1 UNO R3 1 SG90 1 FPV 1 L298N 1