https://github.com/luqas11/ches-pur-ofi
Hardware interface for a Sega Model 2 homemade racing cockpit.
https://github.com/luqas11/ches-pur-ofi
arduino emulation kicad lua
Last synced: 2 months ago
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Hardware interface for a Sega Model 2 homemade racing cockpit.
- Host: GitHub
- URL: https://github.com/luqas11/ches-pur-ofi
- Owner: luqas11
- Created: 2023-12-30T20:01:26.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2025-02-10T03:15:19.000Z (over 1 year ago)
- Last Synced: 2025-08-23T21:57:57.973Z (10 months ago)
- Topics: arduino, emulation, kicad, lua
- Language: Lua
- Homepage:
- Size: 17.2 MB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 1
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Metadata Files:
- Readme: README.md
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README
# ches-pur-ofi
### What is this
This project is the **firmware** and **PCB design** for the hardware interface between the [Sega Model 2](https://emulation.gametechwiki.com/index.php/Sega_Model_2) emulator and **a custom homemade cockpit** which has two **pedals**, a **steering wheel**, an **H shifter** and an **analog speedometer**. The idea is to play [Daytona USA](https://en.wikipedia.org/wiki/Daytona_USA) on the emulator while using the cockpit controls and to keep the speedometer pointer in sync with the game car speed. An [Arduino Leonardo](https://docs.arduino.cc/hardware/leonardo) board makes this interface possible, reading the input values and sending them to the PC as PC Joysick buttons and axes. Also, the board controls the servo that drives the speedometer pointer and processes the car speed value given by the emulator. A custom PCB design simplifies the setup process, allowing the user to just plug the *Leonardo* into the PCB and play, without additional wiring.
The repo has the following project components:
- A **LUA script** that runs in the emulator and broadcasts the car speed value to the *Leonardo*
- A **C++ sketch** that is the firmware running inside the *Leonardo*, which processes the controls inputs and the speedometer motor output
- A **custom PCB** that has some pins to simplify the electrical connections between the *Leonardo* and the cockpit potentiometers and buttons
### How to use it
While in the cockpit, plug the *Leonardo* to the board and the USB to the PC. Run the emulator from the `Daytona USA.bat` script, and specify the *Leonardo* COM port number when asked to. After that, the game shuld start with all the controls operational. Axes calibration process is explained in the `firmware` readme file, and is usually needed after a hardware change (i.e. after replacing potentiometers). In the top left corner an informative text shows the port connection status, and it's behavior is also explained in the `firmware` readme.
### Some screenshots
#### Gameplay with a successful connection to the *Leonardo* (notice the top-left corner text displaying the COM port name in green):
#### Gameplay with the connection to the *Leonardo* lost (notice the top-left corner text displaying the COM port name in red):
#### PCB layout:
#### PCB 3D model:
