A Portable Air Raid Alert Device (built on ESP32 with a custom 3D printed case)

This project runs on an ESP32 Wroom DevKit with a connected piezo buzzer, an RGB LED, and a 2-way switch.
The device connects to WiFi networks and uses HTTP GET requests to obtain the current air raid alert status from a web service.
The device's 3D case was designed to accommodate two 18650 batteries if needed (see air-raid_alert_case.blend).
Additionally, an external siren speaker can be connected via a relay if the device is to be used in public places.

Libraries used: HTTPClient, ArduinoJson, NTPClient, WiFi and WiFiUdp


You can find the full source code on github:
https://github.com/2CoderOK/air-raid-alert


Circuit diagram:
https://github.com/2CoderOK/air-raid-alert/blob/main/circuit_diagram.png


You can buy me a coffee:
https://www.buymeacoffee.com/coderok

Тэги:

#esp32 #arduino #air_raid_alert

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