https://github.com/othmar52/table-soccer-speedometer
Arduino based measuring and displaying ball speed on a table soccer
https://github.com/othmar52/table-soccer-speedometer
Last synced: 3 days ago
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Arduino based measuring and displaying ball speed on a table soccer
- Host: GitHub
- URL: https://github.com/othmar52/table-soccer-speedometer
- Owner: othmar52
- Created: 2023-07-14T06:23:19.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2023-08-01T16:25:14.000Z (almost 3 years ago)
- Last Synced: 2023-08-26T20:51:34.273Z (almost 3 years ago)
- Language: C++
- Size: 26.4 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Table Soccer Speedometer
```
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╚═╝ ╚═╝ ╚═╝╚═════╝ ╚══════╝╚══════╝ ╚══════╝ ╚═════╝ ╚═════╝ ╚═════╝╚══════╝╚═╝ ╚═╝
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╚══════╝╚═╝ ╚══════╝╚══════╝╚═════╝ ╚═════╝ ╚═╝ ╚═╝╚══════╝ ╚═╝ ╚══════╝╚═╝ ╚═╝
```
This Arduino (ESP32)-based project measures and displays the speed of a ball on a table soccer game. By using light barriers, it calculates the flight height of the ball and then determines its speed based on that information.
## Features
- Calculates ball speed based on flight height
- Uses light barriers to measure the interruption time
- Displays speed and flight height on an LCD screen
## Assumptions
- The ball is assumed to approach the goal surface at a 90-degree angle, disregarding different impact angles such as left, right, ascending, or descending.
- Acceleration or deceleration of the ball during the measurement process is ignored.
## Prototype Image
## Getting Started
To build and run this project, follow these steps:
1. Clone the repository: `git clone https://github.com/othmar52/table-soccer-speedometer.git`
2. Connect the ESP32 Arduino board to the computer.
3. Upload the sketch to the board using the Arduino IDE.
4. Set up the light barriers and ensure they are properly aligned.
5. Power on the system and observe the speed and flight height measurements on the LCD screen.
## Libraries used
https://github.com/MajicDesigns/MD_Parola
https://github.com/MajicDesigns/MD_MAX72XX
## Components Used
- Arduino board ESP32
- Light barriers (e.g., SFH 309)
- Matrix display MAX7219
- Jumper wires
## wiring
### ESP32-S Dev Kit C
https://www.azdelivery.de/products/esp32-dev-kitc-v2-ai-thinker-soldered
```
ESP32
┌────────────────────┐
│◎ 3V3 GND ◎│
│◎ EN G23 ●│────> display MAX7219 MOSI [label:DIN]
sensor input <────│● SVP/36 G22 ●│────> sensor input
sensor input <────│● SVN/39 TXD ◎│
sensor input <────│● G34 RXD ◎│
sensor input <────│● G35 G21 ●│────> sensor input
sensor input <────│● G32 GND ◎│
sensor input <────│● G33 G19 ●│────> sensor input
sensor input <────│● G25 G18 ●│────> display MAX7219 SCK [label:CLK]
sensor input <────│● G26 G5 ●│────> display MAX7219 CS [label:CS]
sensor input <────│● G27 G17 ●│────> sensor input
sensor input <────│● G14 G16 ●│────> button input
sensor input <────│● G12 G4 ●│────> button input
│◎ GND G0 ◎│
sensor input <────│● G13 G2 ●│────> button input
│◎ SD2 G15 ●│────> button input
│◎ SD3 SD1 ◎│
│◎ CMD SD0 ◎│
│◎ 5V CLK ◎│
└────────────────────┘
```
### Photo transistors SFH 309
https://www.conrad.at/de/p/osram-sfh-309-fototransistor-3-mm-1080-nm-12-sfh-309-153870.html
```
SHORT LONG
LEG LEG
◎ ◎
┌───────────┐ ◎ ◎
3V3 ●──────┤ 670K ├─────┬─────◎ SFH309 ◎────────● GND
└───────────┘ │ ◎ ◎
│ ◎ ◎
●
to ESP32
digital pin
```
### circuit schematics
## Troubleshooting
https://aur.archlinux.org/ch34x-dkms-git.git
## Contributing
Contributions to this project are welcome! If you have any ideas, improvements, or bug fixes, please open an issue or submit a pull request.
## License
This project is licensed under the [MIT License](LICENSE).