Build the Mechanical Foundation of Your Robot
The 4WD Smart Robot Car Chassis Kit provides the mechanical platform needed to build a programmable mobile robot. Its double-layer acrylic construction creates space for mounting a controller, motor driver, battery holder, sensors and other electronic modules.
The kit includes four dual-shaft 200 RPM BO geared motors and four 65 mm plastic wheels with rubber grip, creating a four-wheel-drive platform suitable for a wide range of DIY robotics applications.
The open two-layer structure makes component placement, wiring and future modifications convenient. Multiple mounting areas provide room for adding motor drivers, sensor modules, cameras, servo motors and wireless development boards.
It can be integrated with popular development platforms such as Arduino, ESP32 and Raspberry Pi, depending on the selected motor driver, power system and project requirements.
From basic motor-control experiments to Bluetooth-controlled vehicles, line-following robots, obstacle-avoidance systems and IoT-enabled mobile platforms, this chassis provides a flexible starting point for hands-on robotics development.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | 4WD Smart Robot Car Chassis Kit |
| Drive Configuration | Four-Wheel Drive (4WD) |
| Chassis Construction | Double-Layer Acrylic |
| Chassis Colour | Transparent |
| Number of Motors | 4 |
| Motor Type | Dual-Shaft BO Geared DC Motor |
| Motor Operating Voltage | 3–6V DC |
| Motor Rated Speed After Reduction | 200 RPM |
| Motor Rated Torque | 0.8 kg-cm |
| Motor Shaft Length | 8.5 mm |
| Motor Shaft Diameter | 5.4 mm round side / 3.5 mm flat side |
| Gearbox Shape | Straight |
| Number of Wheels | 4 |
| Wheel Diameter | 65 mm |
| Wheel Type | Plastic Wheel with Rubber Grip |
| Coded Disks | 4 |
| Battery Holder | 4×AAA |
| Connecting Cables | Red and Black, 20 cm each |
| Development Platform Compatibility | Arduino, ESP32, Raspberry Pi and other suitable controllers |
| Assembly | Required |
| Motor Driver | Not Included |
| Development Board | Not Included |
| Sensors | Not Included |
| Batteries | Not Included |
| Quantity | 1 Kit |
Technical Specification Pointer
4WD acrylic robot platform featuring 4 × dual-shaft 200 RPM BO geared motors, 65 mm rubber-grip wheels and 3–6V DC motor operation.
Key Features
- 4-Wheel Drive Platform: Four geared motors provide drive to all four wheels.
- 200 RPM BO Geared Motors: Includes four dual-shaft BO motors with a rated speed of 200 RPM after reduction.
- 65 mm Rubber-Grip Wheels: Four plastic wheels with rubber grip provide the rolling interface for the robot.
- Double-Layer Acrylic Chassis: Two acrylic plates provide a practical structure for mounting electronics and project components.
- Multiple Mounting Areas: Suitable for adding controllers, motor drivers, sensors, cameras and other modules.
- Coded Disks Included: Four coded disks are included in the package.
- Hands-On Assembly: Suitable for learning mechanical assembly, motor control and mobile robotics.
- Expandable Design: Can be customised with different controllers, sensors, communication modules and power systems.
Recommended Applications
- Arduino robot car projects
- ESP32 mobile robot projects
- Raspberry Pi robotics projects
- Bluetooth-controlled robot cars
- Wi-Fi-enabled robot vehicles
- Line-following robots
- Obstacle-avoidance robots
- Sensor-based mobile robots
- IoT robotics projects
- Mobile robotics prototypes
- STEM and school robotics projects
- DIY electronics and embedded-system projects
Educational Applications
Suitable for hands-on learning in:
- DC motor control
- Gear motors and mechanical motion
- Four-wheel-drive robot construction
- Chassis assembly
- Motor-driver integration
- Sensor integration
- Microcontroller programming
- Wireless robot control
- Autonomous navigation concepts
- Embedded systems
- Robotics prototyping
Project Possibilities
Use the chassis as the base for projects such as:
- Bluetooth-controlled 4WD robot
- Wi-Fi robot car
- Line-following robot
- Obstacle-avoidance robot
- Remote-controlled mobile robot
- ESP32 IoT robot
- Raspberry Pi mobile robot
- Camera-equipped robot platform
- Multi-sensor robotic vehicle
- Autonomous navigation prototype
Additional electronics and power components are required depending on the project.
Compatibility Notes
The chassis can be integrated with development boards such as Arduino, ESP32 and Raspberry Pi.
A suitable motor driver is required to control the DC motors from a development board. The motors should not be connected directly to standard microcontroller GPIO pins.
The appropriate battery or power source must be selected according to the motor and motor-driver requirements.
What’s Included
- 2 × Transparent acrylic car floor plates
- 4 × 65 mm plastic wheels with rubber grip
- 4 × Dual-shaft 200 RPM BO geared motors
- 4 × Coded disks
- 8 × Acrylic fasteners
- 1 × 4×AAA battery holder
- 8 × Red and black connecting cables, 20 cm each
- 4 × M3 brass stand-offs
- 8 × M3 cross-head bolts, 8 mm
- 8 × M3 plastic cross-head bolts, 30 mm
- 8 × M3 nuts
Important Notes
- This is a robot chassis and drive kit, not a complete programmable robot.
- Arduino, ESP32, Raspberry Pi and other development boards are not included.
- Motor driver is not included.
- Sensors and wireless modules are not included.
- Batteries are not included; the package includes a 4×AAA battery holder.
- The included motors are specified for 3–6V DC operation.
- Use an appropriate motor driver and power supply for the motors.
- Do not connect the motors directly to microcontroller GPIO pins.
- Assembly is required.
- Robot speed, traction and carrying performance will depend on the power source, motor driver, total load, surface and project configuration.
Product Summary
The 4WD Smart Robot Car Chassis Kit is a flexible mechanical platform for building programmable mobile robots. With four 200 RPM dual-shaft BO geared motors, 65 mm rubber-grip wheels, a double-layer acrylic chassis and the required basic mounting hardware, it provides the core mechanical foundation for Arduino, ESP32, Raspberry Pi and other DIY robotics projects.
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