In India, power outages are common. I wanted a simple way to detect and alert when the grid goes down.
ESP32 → powered by the grid.
Raspberry Pi → runs on backup.
Pi pings ESP32 → if unreachable, outage detected.
Pi sends real-time Telegram alert (“⚡ outage” / “✅ restored”).
This is basically applying DevOps monitoring + alerting to the real world.
Full tutorial: https://www.hackster.io/biswasvibhanshu2011/how-i-track-power-outages-in-india-e33120
Repo: https://github.com/cray2015/grid_outage_tracker
Any questions? drop a comment :)
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