Special Offer US $19.90 Smart Electronics Motor Smart Robot Car Chassis Kit Speed Encoder Battery Box 2WD Ultrasonic Module

Smart Electronics Motor Smart Robot Car Chassis Kit Speed Encoder Battery Box 2WD Ultrasonic Module

[32804189054] Purchase Notes 1. The two logistics of Yanwen Economic Air Mail and China Post Ordinary Small Packet Plus do not have tracking information, so there is no time limit. We recommend using China Post Registered Air Mail or AliExpress Standard Shipping. 2. We do not accept refunds for minor damage (pin bending, slight screen abrasion,etc.)during the transit of the material, without affecting normal use. If you mind,please do not buy. 3. Some products provide technical support, if you need help, please contact us, we will handle your message the first time. 4. If you have any questions about the product, please contact us before you open a dispute. We will give you the most satisfactory answer. 5. We provide each customer with good quality products, very favorable prices and the most sincere service. We hope to get your good feedback. Wish you a pleasant shopping! 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 chassisX1 Car WheelsX 2 DC Gear Motor 1 48: a deceleration DC motor (otherwise 120: 1 Optional) 20 line gun code disk X2 Fasteners (high intensity black acrylic)X 4 Caster X1 Four battery boxX 1 Quality Rocker SwitchX 1 Assembly drawingX 1 Several screw nut V5 shield X1 UNO R3 X 1 SG90 X 1 FPV X 1 L298N X1 Package upgrade! Safer, no more damage! If need more parts Pls clickand submit the order.If you need more quantity,Pls contact us. If you mind the price,If some parts can not find out in my store,Pls contact us,we still have many parts don't published. We will send thelatest version of product, the upgraded function. It may has different shape or color. If you can't agree, pls don't buy. Please don't open dispute and leave any bad feedback, if you have any question,feel free to contact us,we will give you satisfactory answer.Hope you understand us,thank you in advance. Your satisfaction and positive feedback is very important to us. Please leave positive feedback and 5 stars if you are satisfied with our items and services. If you have any problems with our items or services, please feel free to contact us first before you leave negative feedback. We will do our best to solve any problems and provide you with the best customer service.