Quiz Buzzer
Warning
This page is work in progress. I will add more as the project advances. So come back from time to time to see how it is evolving!
I am currently working on interconnected quiz buzzers:
When one buzzer is pressed, it turns green. All other buzzers will turn red and cannot be pressed anymore.
Hardware
The case is 3D-modelled:
Electronics
- Microcontroller: ESP32-C3 Pico
- Custom PCB for the LED Ring with WS2812Bs on it
- LiPo
- Buzzer Buttons from AliExpress
Software
The prototype was built using ESPHome connected to Home Assistant, and the logic written in Node-RED.
I am currently working on the real software, which will be using ESP-NOW as the communication layer between the buzzers.
Roadmap
- Create a coordinator: This will look like a Stream Deck, and have functions for managing scores and unblocking buzzers
- Experiment with other actors in the buzzer: I ordered little speakers and vibration motors, which might be a cool addition
- Mini Buzzer: I want to experiment with a smaller size for the buzzers