Creative Mini Car Modification

A series of open-source remote-controlled mini car modification projects with multiple chassis sizes and control schemes.

Wheeled
No license: all rights reserved by the creator
Work in progress
arduino
3D printable

Suggested by Robotheca, created by @jiegeng321 (opens in a new tab), from github.com/jiegeng321/Creative-Mini-Car-Modification (opens in a new tab). Pinned to commit a797d90 (opens in a new tab).

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Hardware license: No license
Software license: No license
Commercial use: Unknown

No license is stated for part of this robot.

The creator chose the hardware and software licenses on Robotheca; the repository has no license file for them yet.

This repository contains executable files that Robotheca doesn't check. Only run them if you trust the creator.

Which files (1 program or installer, 1 firmware image)

This repository has no photo of the robot yet.

3D model loaded from the original files on GitHub at a797d90, under NONE. View the original files from GitHub (20.5 MB) (opens in a new tab)

What it can do

Written by Robotheca from the project's documents.

Moves forward, backward, left and right using two DC motors
Controlled by infrared remote or 2.4 GHz 8-channel radio
Supports optional features like lights, horn, and wiper motor
Voice remote control option available for 1:41 series

Bill of materials

This repository has no parts list Robotheca can read yet.

Build guide

The creator's steps, each with its instructions.

1Prepare 3D printed parts
2Assemble mechanical components
3Solder electronic modules
4Install control board and peripherals
5Program the microcontroller
6Test and calibrate the system

The creator's guide is written in Chinese. It has no license, so all rights stay with the creator: Robotheca doesn't show it here or translate it, and gives its own notes about the robot instead.

Read the creator's guide Ask the creator on GitHub

More guides

Wiring and electronics

Notes written by Robotheca from the project's documents.

Main parts

STM8S003 microcontroller for 1:87 series
STM32F103C6T6 microcontroller for 1:64 series
IR receiver for infrared remote control
H-bridge motor driver for DC motors
Buzzer for sound output
Stepper motor driver for wiper motor
Battery and power management board
Switch and charging board

Connections

Motor driver powered by battery and controlled by microcontroller PWM outputs
Buzzer connected to a GPIO pin with a resistor
Stepper motor connected to stepper driver and powered by power board

Schematics, boards and diagrams

Project information

Difficulty: Intermediate
Estimated cost: Not stated
Buildability: 40/100Incomplete documentation
Parts: –
Tools: 3D printer, soldering iron, multimeter

Buildability40/100

Incomplete documentation

How complete the published files are for rebuilding this robot, measured by Robotheca at commit a797d90. It isn't a rating of the robot.

3D and CAD files10/20
117 printable parts (STL, 3MF).
Add the CAD source (STEP, or the CAD program's own files) so people can change the design.
Robot description0/15
No URDF.
Add a URDF: the robot can then be seen in 3D and tried in the browser.
Parts list0/20
No parts list in the repository or linked.
Most points to gain: Link to your parts list, or add it to the repository (a CSV or a Markdown table) with quantities, prices and where to buy each part.
Software15/15
Code in this repository, instructions to install or run it, built on arduino.
Documentation15/15
README of 3,257 characters with 31 pictures; 6 build steps.
Simulation0/5
No simulation files.
Add a simulation model (MuJoCo, Gazebo, Webots or Isaac).
Licenses0/10
Hardware: no license; software: no license.
Add a license for the hardware (e.g. CERN-OHL-S-2.0 or CC-BY-SA-4.0). Add a license for the software (e.g. MIT or Apache-2.0).

Software

Framework: arduino
Languages: C, Assembly
License: NONE

The code

How to run it

Written by Robotheca from the project's documents.

For STM8 series: import IAR workspace, compile, and flash via ST-Link using SWIM interface
For STM32 series: import CubeIDE workspace, compile, and flash via ST-Link using SWD interface
For 2.4 GHz 8-channel series: no programming required as firmware is preloaded
For 1:41 series: use provided bin file and a serial download tool to flash via UART

Robotheca doesn't review code. Read it before running it.

Project files

Every file of the project: code, CAD, electronics, guides, at commit a797d90.

Community

Questions and improvements go to the creator's repository.

Photo and 3D model