SmartCar Unicycle Q-Car Hardware 20th

An open-source hardware solution for the 20th National University Intelligent Vehicle Competition unicycle category Q-car model, featuring integrated PCB and 3D-printed parts.

Self-driving 1:10
Open source
3D printable

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Hardware license: MIT (opens in a new tab)
Software license: MIT (opens in a new tab)
Commercial use: Allowed

This repository has no photo of the robot yet.

3D preview converted from github.com/fengshiyangrouguan/SmartCar-Unicycle-Hardware-20th at 7c77722, under MIT. View the original files from GitHub (139 KB) (opens in a new tab)

What it can do

Written by Robotheca from the project's documents.

Balances and moves on a single wheel
Supports dual-camera input for vision-based navigation
Uses PID control for stability and motion

Bill of materials

This repository has no parts list Robotheca can read yet.

Build guide

The creator's steps, each with its instructions.

1PCB fabrication and soldering
23D printing of structural parts
3Assembly and debugging of the system

The guide appears here as you scroll.

Guide by @fengshiyangrouguan (README.md), under MIT. The English translation is by Robotheca, shared under the same license.

Wiring and electronics

Notes written by Robotheca from the project's documents.

Main parts

TC387 microcontroller board
CYT chip for brushless motor driving
Brushless motor driver module
Brush motor driver module
Two camera inputs
Button control board
Screen display board
Power distribution board rated for up to 50A current

Connections

Main board connects to brushless motor driver power board via pluggable power interface
Main board connects to brushless motor driver signal interface via pluggable signal interface
Main board connects to button control board, screen display board, and power distribution board via dedicated connectors
Power lines for main board and drivers require thick wires soldered to main power interface

Schematics, boards and diagrams

Project information

Difficulty: Advanced
Estimated cost: Not stated
Buildability: 30/100Incomplete documentation
Parts: –
Tools: 3D printer, soldering iron, PCB etching/welding tools

Buildability30/100

Incomplete documentation

How complete the published files are for rebuilding this robot, measured by Robotheca at commit 7c77722. It isn't a rating of the robot.

3D and CAD files10/20
3 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.
Software5/15
Code in this repository.
Explain in the README how to install and run the software. Say which software framework it uses (ROS 2, LeRobot, Arduino…).
Documentation5/15
README of 966 characters with 0 pictures; 3 build steps.
Write a README of at least 1,500 characters: what the robot does and how to build it. Show the robot and its assembly in pictures in the README.
Simulation0/5
No simulation files.
Add a simulation model (MuJoCo, Gazebo, Webots or Isaac).
Licenses10/10
Hardware: MIT; software: MIT.

Software

Framework: Not stated
Languages: C
License: MIT

The code

pid/C · 2 files

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

Project files

Every file of the project: code, CAD, electronics, guides, at commit 7c77722.

Community

Questions and improvements go to the creator's repository.

Photo and 3D model