Arduino Battery Backup Monitor

DIY Arduino project that monitors a battery backup/UPS with cloud alerts and SMS.

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Arduino Battery Backup Monitor is a free, open-source DIY hardware and software project for real-time monitoring of a battery backup or UPS, with cloud logging and SMS alerts via Twilio, built on Arduino/NodeMCU hardware. It's aimed at DIY hobbyists who want to know remotely when their UPS is running on battery or nearing depletion, since most consumer UPS units give no remote alert.

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