In this tutorial, we will learn How To Assemble 4WD Robot Smart Car Chassis Kit. This article is very important for my future robotics creations. These 4WD Robot Smart Car Chassis Kits are popular among many people (who build robot cars with Arduino). This can be purchased in parts or as a complete kit. I’m using this for Arduino robot builds.
What are the Arduino projects that can use the 4WD Robot Smart Car Chassis Kit?
The 4WD Robot Smart Car Chassis Kit serves as a versatile platform for various Arduino projects, allowing enthusiasts to explore different applications and functionalities. Here are some Arduino project ideas that can be implemented using the 4WD Robot Smart Car Chassis Kit.
- Obstacle Avoidance Robot: Equip the chassis with ultrasonic sensors to create a robot that can navigate and avoid obstacles in its path using Arduino for control and decision-making.
- Line Following Robot: Implement infrared sensors on the chassis to enable the robot to follow a predefined line or track. This project is great for exploring sensor integration and algorithm development.
- Bluetooth-Controlled Robot: Integrate a Bluetooth module with the chassis and use an Arduino to establish wireless communication. This allows users to control the robot using a smartphone app or other Bluetooth-enabled devices.
- Remote-Controlled Car: Develop a simple remote control system using RF modules or infrared communication to maneuver the robot remotely. This project is excellent for understanding wireless communication principles.
- Autonomous Mapping Robot: Combine the chassis with sensors like gyroscopes and accelerometers to create a robot capable of mapping its environment autonomously. Arduino can be used for data processing and decision-making algorithms.
- Gesture-Controlled Robot: Utilize sensors like accelerometers or gesture recognition modules to control the robot’s movements based on hand gestures, providing an interactive and hands-free control experience.
- WiFi-Enabled Robot: Integrate a WiFi module to enable the robot to connect to a local network. This allows for remote control, data streaming, or even integrating IoT (Internet of Things) capabilities.
- Light-Following Robot: Use light-dependent resistors (LDRs) or photodiodes to enable the robot to follow light sources. This project explores light sensing and motor control based on environmental conditions.
- Voice-Controlled Robot: Integrate a voice recognition module to allow the robot to respond to specific voice commands. This project combines sensor input with voice control for an interactive experience.
- Autonomous Robotic Arm: Attach a robotic arm to the chassis and program it to perform specific tasks autonomously, showcasing the integration of robotics and automation principles.
These project ideas showcase the flexibility of the 4WD Robot Smart Car Chassis Kit for various Arduino-based applications, providing a platform for both beginners and advanced users to delve into robotics and electronics.
You can watch the following video or read the written tutorial below.
Parts of This kit has the following.
These parts may vary depending on the chassis kit you purchase. Generally, the 4WD Robot Smart Car Chassis Kit has the following parts.
- 2 X Four-Wheeled Car Chassis (Acrylic)
- 4 X TT Motors
- 4 X Wheels
- 16 X (3M *10)Screw and 6 X Brass Standoffs 3M 30mm
- 8 X M3*30 Screw and M3 NUt
- 8 X T-Type Acrylic parts
- ScrewDriver
Identifying parts and separating them

Separate the parts as shown in the figure above. I had wired the motors in the 4WD Robot Smart Car Chassis Kit I bought. Otherwise, solder the wires provided by the motor. The two parts of the chassis are made of acrylic sheets. It can be very thin. So use it with caution. If a large force is applied, they will break. These gear motors can supply 5 to 12 volts. Maximum voltage is 12, so be careful to use less than 12V.
Connecting the gear motor to the chassis
The four motors are connected to only one chassis plate. Two T-Type Acrylic parts and two M3*30 Screw and M3 Nut are needed to connect one motor to the chassis. Connect the motor with two T-Type Acrylic parts with two M3*30 Screws and two M3 Nuts. Then do not tighten the M3*30 Screw and M3 Nut too much. Otherwise, the two T-Type Acrylic parts will break. Mount the four motors to the chassis as shown in the figures below. This can be well explained by watching the video


Attaching the upper chassis plate to the chassis plate connecting the four motors
The two chassis plates we get here are identical. In one of them, the four motors were connected as mentioned earlier. (3M *10)Screw and 6 X Brass Standoffs 3M 30mm are used to connect the other chassis plate. Attach Brass Standoffs 3M 30mm with (3M *10)Screw to the positions shown in red in the figure below. Do not press too hard. The chassis plate may be damaged. Then put the chassis plate on it and connect it with (3M *10)Screw. The second image below shows that.


Connecting four wheels to four-gear motors.
The shaft connecting the wheel of the gear motor has a certain shape. Make sure to install the correct wheels according to that shape. Do not over-tighten the wheel as this will break the T-Type Acrylic parts to which the gear motor is attached. This can be well explained by watching the video

If the 4WD Robot Smart Car Chassis Kit is assembled correctly following the instructions above, it can be seen as shown in the image below.

Conclusion
I think I have explained correctly how to properly assemble the 4WD Robot Smart Car Chassis Kit. This 4WD Robot Smart Car Chassis Kit is suitable for robot cars made using Arduino and other microcontrollers. I think you can use this 4WD Robot Smart Car Chassis Kit to create and innovate robots. Also, this article is important for my future projects.