Not only can they sense light, but as the name implies they’re also diodes. As diodes can be used as temperature sensors that means LEDs can as well . Posted in LED Hacks , Parts Tagged fail of ...

The OxyLED USB rechargeable motion sensor LED light is bar-shaped, and approximately 16” long, 1 ½” wide, and ½” tall. About 2” on the left side consists of a white plastic end cap as ...

The sensor allows the pilot light to be automatically re-ignited if the flame is no longer present. The circuit is a surprisingly simple one, with a PNP transistor being turned on by the flame ...

You can use this effect to make a novelty electronic candle as shown in Figure 2a.By placing the sensor diode close to the LED, one can make it turn off by blowing air at it. (A few of these each ...

ILX Lightwave is pleased to announce the release of the new LDT-5500B series precision laser diode temperature with USB 2.0 interface. Two models are available with a choice of 24 Watt or 60 Watt ...

A similar idea using arrays of light-emitting diodes as virtual sensors has also been explored in the internet of things community for skeleton posture and hand pose estimation.

Apple's patent application for "Organic light emitting diode having photodiodes" describes a setup that places photo sensors above, below, or in line with an OLED array to detect and compensate ...