What You Get
Downloadable STL files for all 3D parts
Wiring diagram and assembly instructions
Component list with affiliate links for easy sourcing
Product Overview
This robot uses four Mecanum wheels to achieve true omnidirectional mobility—forward, backward, sideways, and diagonal—without changing its orientation. Powered by NodeMCU and dual L298 motor drivers, it connects via Wi-Fi and is controlled through a mobile app. All necessary files, including STL models, Arduino code, and the app, are provided for free download
Key Features
• Four-wheel drive with independent RPM and direction control
• Mecanum wheels for full-range omnidirectional movement
• Wi-Fi connectivity via NodeMCU (ESP8266)
• Mobile app control with customizable IP interface
• Fully 3D printable chassis and wheel components
• Optional Bluetooth configuration with Arduino UNO and HC-05
• Compatible with DIY 3D printers (220×220×250 mm build volume)
• STL files, code, and app included for fre
Assembly & Setup
- Print all parts using 20% infill and 0.2 mm layer height
- Assemble chassis and mount motors using M3 screws
- Connect electronics following the provided wiring diagram
- Upload code via Arduino IDE and configure Wi-Fi credentials
- Use the mobile app to control movement and test motor response
- Secure wiring with zip ties and heat shrink tubing
- Add front and back covers to complete the build
Optional Configuration
• Use Arduino UNO with L293D motor shield and HC-05 Bluetooth module
• Alternate wiring and code setup provided for Bluetooth control
This downloadable product of Arduino Wifi Car contains all files required to 3D print your own Wifi Car at home with Free Code for the Car and App for your smartphone.
Arduino Wifi Car .STL Files Details-
Total Printing Volume of all 9 Files: 214,665 mm³
This ZIP file contains 9 .STL files i.e.
- Back B
- Back Support B
- Bottom cover G
- Front B
- Front grill G
- Front Support B
- Left body
- Right body
- Ultrasonic Sensor plate
All the accessories are distributed into the above-mentioned parts so that you can easily print any part at your home with your own DIY 3D printer of minimal size i.e. 220(mm)x220(mm)x250(mm).
To make your own homemade 3D printer at home see the blog below.
DIY Mecanum Wheel Robot Car – Wireless (All Files Included)
All the files given are complete and have been tested.
Wifi Car Code (Free)
Code is essential for maneuvering the wifi car. It gives multidirectional movement options i.e. forward-backward, left-right, and sideways with the help of Mecanum Wheels (Included FREE).
Code is in INO format and is 7.0KB.
Wifi Car Mobile App (Free)
The mobile app is used to control the Arduino wifi car and give directions and maintain the connection between the car and mobile. This file is also essential for the proper functioning of the car and thus included in the bundle for FREE.
Mobile App is in .APK format and is currently available for Android mobiles only.
Wifi Car Mecanum Wheels (Free)
Mecanum wheels allow transversal movement of the car. These are included free with the product and also can be downloaded separately through the following link.
Mecanum Wheel
Youtube Video on Arduino Wifi Car
To clear all your doubts we have made a youtube video explaining in detail every step and procedure.
In case of any doubt please reach us through the main or comments section in the blog, product, or youtube channel. We will be most happy to help you in any way.
Thank You.
Parts Included in the STL File
Final Touch
Once assembled, the robot is ready for action—whether navigating tight spaces, performing motion experiments, or racing with friends. The build is beginner-friendly yet offers plenty of room for advanced customization and upgrades
| Motor ×4 | 12V DC Gear Motor link |
| Motor Driver ×2 | L298N link |
| Microcontroller | ESP8266 link |
| Charging Input | 12V Female DC Jack link |
| Rocker Switch | On/Off Switch link |
| Battery Management System | 3S 20A BMS link |
| Battery Charger | 12V 2A Charger link |
| Lithium-ion Cell ×3 | 18650 Rechargeable Cell link |
| 18650 Cell Case | 3-Cell Holder link |
| 3D Printer | 220×220×250 mm build volume |
| Nuts and Bolts | M2.5 and M3 sizes (various lengths) |
| Accessories | Silicon wires, cable zip ties, heat shrink tubes, soldering iron |
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