The presented schematic shows how to build a simple PIR motion sensor. PIR sensors allow motion sensing, it is almost always used to detect whether someone has moved in or out of the sensors range.

Recently, I exhausted my stock of common passive infrared (PIR) motion sensor modules and was looking for a new one to play with. I searched the web for a small type with self-contained electronics.

I love Aqara’s products, and if you love HomeKit, it’s a vendor you’ll want to follow. They make incredibly easy-to-use and reliable smart home products at prices that won’t empty your bank account.

Smart lights are a great way to enhance home security. Being able to flip on the lights remotely or automatically, you can give the impression that someone is home and expose potential intruders. It’s ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› Advice, staff picks, ...

Official Description: An infrared motion sensor that detects both human and paranormal movement. When set off, it will illuminate the surrounding areas with a bright light. Another tool to help you ...