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The handy project is built around a small Microchip 12F509 controller, an alarm, and a temperature sensor to remember the monitored temperature of how long it has been above a temperature set point.

Aqara makes the best smart sensors, hands down, and almost all of them, including hubs, are on deep discount right now. Amanda Blum is a freelancer who writes about smart home technology, gardening, ...

The old saying “if it ain’t broke, don’t fix it” cautions against tampering with something that performs reliably and regularly proves its worth. Arguably, this advice applies to the circuit design ...