Linked Questions

I have a pile of bluish white LEDs salvaged from Christmas lights. They look like ordinary LEDs, with one electrode having a little cup with the light emitter, and the other with a tiny wire going to ...

Please excuse the awkward phrasing of the question; it seems that LEDs have pulse latencies of nanosecond and sub-nanosecond durations. The question is, how was it possible to measure such precise ...

Can someone help me to explain why LED have better response time when compare with other light source (ex:fluorescent lightbulb). Because their structure or anything else? Thanks everyone so much.

I'm planning to assemble a circuit this weekend; it is basically an attiny85 with a USB interface. The circuit is well known on the internet; see for instance this schematic: (Image taken from http://...

Attempting to measure latency on a photodiode. This is the circuit I've put together: Source TS7805 to give my 5V (from a 12V rail) 1.2kHz square wave into first T1 D1 is a BPW41 scope on source and ...

I have one trigger which is a 200 ns pulse and a clock with 12.5 ns width and 50% duty cycle. I have made 8 pulse each 5 V and 12.5 ns width. I need to turn each LED for each of my pulse so when ...

I need to turn on an LED (NTE 30030) for 100 milliseconds, turn it off and then immediately (< 1ns or as close to zero as possible) take measurements on a nearby (< 10mm away from LED) ...

After getting some ideas (thanks to users Russell McMahon, akellyirl, The Photon...) and some extra research and redesign, I would like to hear opinions about how to approach my LED flash project. ...

Suppose I have a simple LED driving circuit i.e. an LED and a resistor in series which is driven by a pin of a microcontroller. Now I set the frequency of this pin to say 1Khz, will the LED flash with ...

I need to blink IR LEDs at different Hz and I am going to use a frequency generator for that. The frequency generator is 30 MHz and that is the maximum I need to blink the LEDs. I was thinking to use ...