Smart Car Chassis Kit 2WD - DIY Robot Platform with Speed Encoder, DC 6V Motors, and Battery Box for Arduino and STEM Robotics Education

The Smart Car Chassis Kit 2WD is a foundational, highly versatile mobile robot platform designed for hobbyists, students, and DIY electronics enthusiasts. Built around a sturdy and lightweight acrylic chassis, this kit provides everything needed to construct a fully functional mobile robot. Whether you are building an autonomous line-following vehicle, an obstacle-avoiding robot, or a remote-controlled rover, this platform serves as the perfect mechanical foundation. It integrates dual DC gear motors, high-grip rubber tires, speed encoders, and a battery holder, allowing users to focus entirely on programming and circuit design rather than mechanical fabrication.

At the core of the propulsion system are two DC 6V gear motors featuring a 48:1 reduction ratio. These motors deliver balanced torque and speed, achieving approximately 240 RPM with the included wheels attached. Each motor is coupled with a tachometer encoder disc, enabling optical speed and distance tracking when paired with appropriate sensor modules. The chassis plate features pre-drilled mounting holes and slots strategically positioned to accommodate motor brackets, castor wheels, motor driver boards, microcontrollers, and sensor arrays such as ultrasonic sensors or infrared tracking modules.

Operating Voltage: DC 6V

No-Load Current: 120 mA

Reduction Rate: 48:1

Motor RPM (with tire): 240 RPM

Tire Diameter: 66 mm

Motor Dimensions: 70 mm x 22 mm x 18 mm

Chassis Material: Acrylic Plastic

Total Weight: 400 g

Power Supply: 4 x AA battery box with integrated rocker switch

This robotic chassis kit is widely used in educational settings, STEM workshops, and home laboratories. It is ideally suited for building line-tracing robots, maze-solving vehicles, obstacle detection rovers, Bluetooth-controlled cars, and autonomous distance-measuring devices. It integrates seamlessly with popular development boards and microcontrollers including Arduino Uno, Mega, ESP32, and Raspberry Pi.

Assembly of the chassis is straightforward due to its simplified mechanical layout. Peel off any protective plastic film from the acrylic plates before assembly. Mount the DC motors securely using the included acrylic fasteners and screws. Attach the caster wheel to the front or rear to ensure stable three-point balance. Connect the motor leads to a dual H-bridge motor driver (such as the L298N) and wire the battery box through the power switch to ensure safe power distribution to your microcontroller and motor drivers. Ensure correct polarity when wiring motors to maintain consistent directional control.

1 x Acrylic Car Chassis, 2 x DC Gear Motors, 2 x Rubber Tires, 2 x Speed Encoder Discs, 1 x Universal Caster Wheel, 1 x 4 AA Battery Box with Switch, Fastening Screws and Mounting Hardware