Keeping count of table tennis points

The idea:

Keep count of table tennis points with wireless 433 Mhz buttons connected to a microcontroller, which passes the points to a MQTT broker via WiFi. Show the points in real time in a browser window.

Feature ideas:

• undoing points
• multiple game modes (like 2/5 serves per player, 11/21 points to win etc.)
• led indicator to indicate wifi+mqtt connection
• game duration timer
• integrating to the original wunderpong app
  • starting game with the face recognition webcam (to get the names of the players)
  • saving games to the score board

MQTT broker for local development

To start the MQTT broker for local development, run:

docker run -it -p 1883:1883 -v mosquitto:/mosquitto/config eclipse-mosquitto

Configuration file for Mosquitto is located at ./mosquitto/mosquitto.conf

ESP-32 microcontroller

Where to buy:

https://www.aliexpress.com/item/ESP32-Development-Board-WiFi-Bluetooth-Ultra-Low-Power-Consumption-Dual-Cores-ESP-32-ESP-32S/32799710563.html?spm=a2g0s.9042311.0.0.27424c4d0UfrTN

Drivers for ESP-32:

https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

Pinout: