ESP32-controlled RC Micro Car Chassis

The ESP32-controlled RC Micro Car Chassis, equipped with the versatile ESP32 microcontroller, is a perfect platform for hobbyists and enthusiasts looking to create their own miniature RC cars. This controller offers a wide range of functionalities and customization options, making it suitable for various projects, including remote-controlled cars, miniaturized vehicles, and educational robotics.

Features:

ESP32 Microcontroller: The ESP32 microcontroller serves as the brain of the RC car, providing ample GPIO pins for connecting various sensors, actuators, and peripherals.

Bluetooth Low Energy (BLE) Technology: The ESP32 features built-in Bluetooth Low Energy (BLE) capabilities, enabling seamless wireless communication with smartphones, tablets, and other BLE-enabled devices. This technology facilitates remote control, data transmission, and firmware updates without the need for complex wiring.

3D-Printed Construction: The chassis components are designed to be 3D-printed, allowing for easy customization and adaptation to specific design requirements. Parts can be printed using readily available 3D printers and assembled using common fasteners such as paper clips.

Compact Size: The RC car chassis is designed with a compact form factor, making it suitable for small-scale projects and indoor environments. Its lightweight construction ensures agile maneuverability and ease of handling.

Integrated Servo Motors: The chassis features integrated servo motors, including the GS-1502 Linear Servo for steering control and SG90 Micro Servo for throttle and braking. These servos offer precise motion control and can be easily interfaced with the ESP32 microcontroller.

Bearings and Gears: The front wheels are equipped with MR85-ZZ bearings (582.5mm), providing smooth rotation and reduced friction during operation. The gear assembly, consisting of SG90 servo components, ensures reliable movement and traction on various surfaces.

Simplified Assembly: The chassis design minimizes the number of parts and components required for assembly, simplifying the construction process for users of all skill levels. The modular construction allows for easy disassembly and maintenance, as well as compatibility with aftermarket upgrades and accessories.

Additional Components: The chassis may require additional components such as M1 screws (5-7mm) for mounting and securing various parts. These screws can be sourced from common household items or salvaged from old electronic devices.

Links to Components:

MR85-ZZ Bearings: https://www.aliexpress.com/item/32862242083.html?spm=a2g0o.order_list.order_list_main.18.7c1018023P2Bus
GS-1502 Linear Servo: https://www.aliexpress.com/item/1005006148435919.html?spm=a2g0o.order_list.order_list_main.90.7c1018023P2Bus
SG90 Micro Servo: https://www.aliexpress.com/item/1005005672961991.html?spm=a2g0o.order_list.order_list_main.5.7c1018023P2Bus

ESC for speed control can be made using this tutorial: https://www.youtube.com/watch?v=Eb5HrP8qsnw.

Here's the sketch for controlling the car.

https://gist.github.com/Stobf1985/b03cd87aa50860667312b51a58c8ffbf

I modified it from some project on GitHub.

You'll also need the application https://play.google.com/store/apps/details?id=com.thehlab.pc.rccar.

Conclusion:

The ESP32-controlled RC Micro Car Chassis offers a blend of performance, versatility, and affordability, making it an ideal platform for DIY enthusiasts, hobbyists, and educational projects. With its advanced features, user-friendly design, and modular construction, this chassis empowers users to unleash their creativity and explore the exciting world of remote-controlled vehicles.

3D PRINTING SETTINGS

Printer Model: Aneycubic Cobra GO
Printing Material: ABS (Acrylonitrile Butadiene Styrene)
Printing Parameters:
Infill Density: 100%
Layer Height: 0.1 mm
Supports: Enabled (Circular Supports)
Printing Speed: 60 mm/s
Temperature Settings:
Hotend Temperature: 235°C
Bed Temperature: 60°C