Tag Archives: deep sleep

Mailbox IoT ESP 32 Project

Electronics & IOTBy Jörn April 2, 2020

Motivation Out of curiosity I bought a ESP32 board to tinker with, but for almost half a year hadn’t got an idea what to do with it… But then! Project Idea The idea: Every time I get mail into my physical snail mail mailbox, the mailbox shall send a message via Telegram to my smartphone:…

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