Where is the light? Geek from Odesa created a script for Android, that turns an old smartphone into a sensor monitoring the availability of electricity in your home.

Tell us, how it works?

This can works on any smartphone based on AndroId 5+ and above. When the user adds a phone number, he will be asked to grant application access to send SMS messages as well.

The device constantly monitors the presence of voltage in the outlet / electrical network of building. And when the light disappears or appears, it sends an SMS or Telegram message. And puts the smartphone into energy-saving mode until the power supply is restored.