The motion sensor switch circuit can automatically turn on a water sprinkler but you can easily use it as a motion sensor light switch or motion activated alarm too. Before beginning the construction ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The Christian Science Church, and we’ve always been transparent about that. The Church publishes the Monitor ...

This light activated remote switch circuit could be operated using a flashlight beam and could eb used for toggling a specified load from a distance using an external light source such as a flashlight ...

Aqara makes a range of HomeKit-compatible smart home devices for multiple regions around the world. This review takes a look at four of Aqara's latest products, including its Temperature and Humidity ...

The Salon Marketplace team writes about stuff we think you’ll like. Salon has affiliate partnerships, so we may get a share of the revenue from your purchase. Waking up in the middle of the night to ...

At 1mT, Texas Instruments is claiming record sensitivity for an in-plane Hall-effect switch, which includes an internal magnetic concentrator. That said, it is only just ahead of the similar 1.5mT ...