You can use an LED as a light source, sure, but did you know you can use one as a sensor? Dual-Use Devices The concept of using an LED as a sensor is much like using a speaker as a microphone.

The PIR LED light security circuit can be powered from a compact 9V rechargeable battery. Note that the battery charger circuit is not included with the circuit schematic. You can use any suitable ...

If you want to fully enjoy the benefits offered by sensor lights, then you have to consider a few basic things before investing in LED sensor technology.

More of my EV kick coming through. A solar tracker is used rotate a solar panel to get optimum energy from the sun. This one uses LEDs as the light sensor and mosfets to drive the output to rotate … ...

This weather-ready outdoor sensor from Philips Hue tracks motion, temperature and ambient light. It can trigger your lights and gadgets accordingly.

Enabled for 125 msec, Count 8 counts the cycles exiting the light sensor. The circuit senses the light by biasing the LED and current-limiting resistor such that the cathode lead of the LED is at ...

LEPOTEC 30-LED Motion Sensor Cabinet Light Amazon Brightening up your bedroom is as easy as sticking this ultra-bright light on your wall.