1. Product Overview
The YonPhsy 4WD Smart Robot Car Chassis Kit (Model DS DP01) is an educational robotics platform designed for enthusiasts and students. It provides a sturdy PCB chassis, four TT DC motors, and rubber wheels, forming a robust base for various programmable projects. This kit is highly expandable, supporting popular development boards like Arduino and Raspberry Pi, making it suitable for diverse maker projects and learning scenarios.
Key features include:
- DIY Educational Material: Ideal for beginners to explore robotics and coding.
- Quality Material: 2mm thick PCB chassis ensures durability.
- High-Quality Rubber Tires: 65mm rubber tires with sponge liner for excellent grip.
- Strong Expandability: Abundant mounting holes for Arduino, Raspberry Pi, and various sensors.
- Easy Assembly: Simple mechanical structure with included instructions for quick setup.
2. What's in the Box
Verify that all components listed below are present in your kit:
- Robot chassis (PCB)
- 4 x Wheels
- 4 x TT DC Motors
- Screwdriver
- Screws and Nuts (various sizes)
- Motor wires

Figure 2.1: Kit Contents. This image displays all the components included in the YonPhsy 4WD Smart Robot Car Chassis Kit, laid out on a grid surface. It shows the main black PCB chassis, four yellow wheels with black rubber tires, four yellow TT DC motors, a small bag containing various screws and nuts, red motor wires, and a small screwdriver. Each item is clearly visible and labeled in the image.
3. Assembly Instructions
Follow these steps to assemble your robot car chassis. Ensure you have a clean, flat workspace.
Step 1: Prepare the Chassis
Carefully remove the 8 fixed-blocks from the chassis. These blocks are designed to be detached for motor mounting.

Figure 3.1: Chassis Preparation. This diagram illustrates the initial step of assembly, showing the robot chassis and indicating the 8 fixed blocks that need to be removed before proceeding with motor installation.
Step 2: Prepare Motor Wires
Divide the provided motor wire into 8 sections. These will be used to connect the motors.

Figure 3.2: Motor Wire Preparation. This image shows a length of red motor wire being cut or divided into eight smaller, equal-length sections, ready for connection to the motors.
Step 3: Connect Wires to Motors
Wrap the copper wire ends of the motor wires into the terminals of each TT motor. Ensure a secure connection.
Video 3.1: Motor Wire Connection. This video demonstrates how to connect the motor wires to the terminals of the TT DC motors. It shows the process of stripping the wire and securely wrapping it around the motor's contact points.
Step 4: Mount Motors to Chassis
Use the fixed-blocks and M3 screws with nuts to secure each motor to the back of the chassis. Ensure the motors are firmly attached.

Figure 3.3: Motor Mounting. This diagram illustrates the process of attaching the TT motors to the chassis. It shows the placement of the fixed blocks and the use of M3 screws and nuts to secure the motors in position.
Step 5: Attach Wheels
Mount the four wheels onto the motor shafts. Press firmly until they are securely in place.

Figure 3.4: Wheel Attachment. This diagram shows the final step of mechanical assembly, where the four wheels are pressed onto the shafts of the mounted TT motors, completing the basic chassis structure.

Figure 3.5: Assembled Chassis. This image displays the fully assembled robot car chassis, with all four TT motors and wheels securely attached to the PCB board. The chassis is shown from a top-down perspective, highlighting its compact design.
4. Technical Specifications
| Feature | Specification |
|---|---|
| Model Number | DS DP01 |
| Chassis Material | PCB (2mm thickness) |
| Chassis Dimensions (L x W) | 256mm x 150mm (10.08in x 5.91in) |
| Wheel Diameter | 65mm (2.56in) |
| Wheel Height | 27mm (1.06in) |
| Motor Type | TT DC Motor |
| Motor Dimensions (L x W x H) | 71mm x 22mm x 37mm (2.8in x 0.87in x 1.46in) |
| Compatibility | Arduino, Raspberry Pi, STM32, other mainstream development boards |
| Assembly Required | Yes |
| Recommended Age | 15 years and up |

Figure 4.1: Product Dimensions. This image provides a detailed diagram with measurements for the robot chassis, including its length and width, as well as the diameter and height of the wheels, and the dimensions of the TT motors.
5. Expandability and Compatibility
The YonPhsy 4WD Smart Robot Car Chassis is designed with multiple mounting holes and interfaces to support a wide range of additional components and development boards. This allows for extensive customization and expansion of your robot car.
- Main Control Boards: Compatible with Arduino, Raspberry Pi, STM32, and other popular development boards.
- Sensor Interfaces: Reserved interfaces for various sensors, including ultrasonic, infrared, and camera brackets.
- Battery Placement: The chassis is designed to accommodate a battery under the driver board.

Figure 5.1: Multiple Mounting Holes. This diagram of the robot chassis clearly labels various installation locations for components such as the Raspberry Pi, Arduino, WiFi module, infrared sensor modules, and PTZ fixing holes, demonstrating the kit's expandability.

Figure 5.2: High Compatibility. This image showcases the versatility of the robot car chassis by presenting four different configurations: an Arduino smart car, a Raspberry Pi smart car, a 51 single-chip smart car, and an STM32 smart car, all built upon the same chassis.
6. Safety Information
WARNING:
- This kit contains small parts and is not suitable for children under 3 years old due to choking hazards.
- Adult supervision is recommended during assembly and operation, especially for younger users.
- Ensure all electrical connections are secure to prevent short circuits.
- Use appropriate batteries (AA) as specified. Do not mix old and new batteries, or different types of batteries.
7. Support and Resources
For additional resources, tutorials, and support, please refer to the following links:
For customer service inquiries, please contact YonPhsy directly through your purchase platform.