Photobooth Buzzer

A buzzer based on the ESP32. It connects to the photobooth system via bluetooth and emulates a keyboard to trigger captures remotely.

Made for the photobooth-app but could be used universal if all you need is a keyboard trigger.

Features 😍

• battery powered, no cords
• battery status reporting via bluetooth
• USB-C charge port (and programming)
• Possible to charge while using. Battery is charged even if buzzer is turned off.
• simple installation using Visual Studio Code and Platform IO plugin
• emulates bluetooth keyboard, easy integration in a photobooth
• Runtime on battery is ~18h. The power consumption measured is about 60mA - the battery has 1100mAh capacity.

BOM

• 3d printed parts
• Buzzer: Not Aus Schalter/Taster, rastend, 240V, NC und NO Pilztaster rot IP65 1Ö 1S Buzzer P1C400E72
• Battery: 4XEEMB 3.7V 1100mAh Lipo Batterie Akku 603449 Lithium Polymer Batterien mit JST Stecker
• ESP board: Adafruit ESP32-S3 Feather with STEMMA QT / Qwiic (8 or 4MB flash)
• on off switch
• some M2 screws

Assembly

1. Check images and CAD
2. Connect button switch to GND and GPIO D12.
3. Connect power switch to GND and EN.

Flash ESP Firmware

• use platformio plugin in Visual Studio Code
• load the project repo https://github.com/photobooth-app/photobooth-buzzer
• click build and upload
• watch serial output for some debug messages of the ESP device.

Integrate with the photobooth-app

To integrate the buzzer with the photobooth-app check the docs https://photobooth-app.org/extras/buzzer/