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petitericeball
- 24
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I think that's what they're called. I was guessing that you just put them in backwards, but I'm betting its more complicated than that?
mgb_phys said:In theory, although you would be better off with real photodiodes.
petitericeball said:how would i go about sending these "impulse" type things into a computer?
LED's can be converted into photodiodes by reversing the direction of current flow. This means that instead of providing power to the LED, the LED is exposed to light and the resulting current is measured. The light-sensitive nature of the LED allows it to function as a photodiode.
A LED (light-emitting diode) is a semiconductor device that emits light when a current is applied, while a photodiode is a semiconductor device that produces a current when exposed to light. In other words, LED's emit light while photodiodes detect light.
Using LED's as photodiodes can be advantageous because they are readily available and inexpensive. Additionally, they have a wide spectral response range and can be easily integrated into electronic circuits.
No, not all LED's can be used as photodiodes. Only certain types of LED's, such as those with a transparent or clear casing, can function as photodiodes. Additionally, LED's that emit light in the visible spectrum are typically more sensitive to light and therefore better suited for use as photodiodes.
LED's used as photodiodes have a variety of applications, including in light sensors, optical communication systems, and barcode scanners. They can also be used in industrial applications for detecting and measuring light intensity and in consumer electronics for touchless gesture control.