https://smarthomerepairauthority.com/smart-home-sensor-repair-and-replacement/
Smart Home Sensor Repair and Replacement: Motion, Door, and Window Sensors
Smart home sensors — including passive infrared motion detectors, magnetic door contacts, and window reed switches — form the detection layer of nearly every...
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https://www.hackster.io/news/turning-an-ikea-frame-into-a-smart-home-sensor-3161b6af2215?shem=dsdf,sharefoc,agadiscoversdl,,sh/x/discover/m1/4
Turning an IKEA Frame Into a Smart Home Sensor - Hackster.io
Stop settling for mediocre smart home sensors. This DIY IKEA frame build lasts 7 years on one battery and hides in plain sight.
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