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The ESP32 that I went for is specifically the ESP32-DevKitC, which is easy to find, cheap, and compatible with most things ...
Ubuntu Waterhub has created 70 automated, prepaid water dispensing systems serving both vendors and communities.
Looking for practical Arduino projects? This guide shows how to control a relay from your smartphone using an Arduino Uno — ...
If you're knee-deep in Home Assistant like I am, then check out these more niche integrations that require editing your config to use.