CODE PROGRAMMING -- With this smart robot tank car chassis TP101, you can use Arduino electronics controller board and many sensors to make some projects, like obstacle avoidance, tracing, automatic driving, and AI RoS learning. The robot chassis kit is a great starter kit for beginners to learn the code programming of Arduino UNO R3, Raspberry pi, Python. ROBOT CHASSIS -- The robot tank chassis can move smoothly in complex environments such as grass, sand, and small stones. But it is easy to roll over for a car chassis. The tracks of the tank chassis are wider than regular wheels, so tank chassis can easily pass through these scences. Note, the length of track can be adjusted as any length.for its one by one connection. GREAT LEARNING -- Robotics covers robotic mechanics, software, and electronic hardware. With this tank robot chassis frame starter kit, you will learn how to assemble and design, controller and code programs such as Arduino, Raspberry pie, Python. METAL PANEL -- Designed with metal panel, with 2pcs plastic tracks and 4pcs wheels. This robotic smart car chassis kit is perfect for students to use for Arduino/Raspberry Pi/microbit learning. In the manual, we provide the Arduino code with WiFi, Bluetooth control mode. You can easily DIY a tank chassis. PACKING LIST -- Include 1pc metal frame, 2pcs plastic driving wheels, 2pcs plastic bearing wheels, 2pcs plastic tracks and screw kit. Smart robot car chassis kit is a good product for DIY, science educational kits, suitable for robot enthusiasts, car enthusiasts, etc. Any question, please feel free to contact us, and we will reply you as soon as possible.