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 ...

1/2 Mile Long Range Solar Wireless Driveway Alarm System IP65 Weatherproof Outdoor Motion Detectors&Sensor 120dB Siren Sound Light Security Alert System Monitor&Protect Outdoor/Indoor Property (1R1S) ...

A motion sensor activates the light when it detects something moving within its field of view. Photocells work with a resistor that changes its conductivity based on how many photons are hitting it.

LeonLite’s LED security light proves three heads are better than one. It earns our top recommendation due to its three adjustable, bright LEDs, customizable motion detection sensitivity, and ...

A quiet morning. Coffee in hand. The buzz of the neighborhood settling into the day. Then—a surprising noise. Someone's ...

Posted in Microcontrollers Tagged alarm, attiny85, motion sensor, pir, sleep mode ← Sustainability Hack: Wind Turbine Battery Charger Two Dice, One 8-pin UC → ...

This motion detector alarm can detect a moving person from a distance of 1 meter. It uses a dual IR Transmitter-Receiver module HOA1405. When the sensor detects the reflected IR rays, alarm will sound ...

A $199 Ring Alarm kit, for example, includes one motion sensor, one door/window sensor, a siren, and more, and it can be integrated with Ring’s video doorbells and indoor/outdoor security cameras.

Then I'd look like a complete idiot as I scrambled to put in the right combination. You can pick one up for $24.95. Lock Alarm – motion sensor alarm protects your stuff loudly [via redferret] ...

Up to 12 motion sensors can be connected to a Philips Hue Bridge. During a recent demonstration, Philips had the motion sensor connected to several smart light bulbs in a New York City hotel room ...