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Topic: arduino uno lcd frequency mirror? (Read 2698 times) previous topic - next topic

8bitbacon

Hi, I have an arduino uno and I noticed infrared led's can send data over the air, an lcd also has many led's that pulse in a linear order, I have a 2 pin led (ws2812b) that you can change the color by pulse, does that mean the led color can be detected over the air by color because of its frequency and if so, does that mean you can can read the lcd's led frequencies pulsing linearly over the air? thanks
arduino mini woot

ballscrewbob

#1
Oct 22, 2017, 04:14 am Last Edit: Oct 22, 2017, 04:38 am by ballscrewbob
Although in theory its possible the practice would take a lot of work above and beyond just adding emitter detectors in the IR range.

The output from an LCD "may" work but its doubtful you would get any sort of distance out of it as it emits colours at a completely different wavelength to the IR diodes. and may not be able to provide a focused enough band.

If you need any more info just google  "IR wavelength" there is a whole gamut of useful info out there.

IR and UV are either side of the "visible" spectrum


BTW you know the is the ZERO section dont you ?
It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

8bitbacon

Alright thanks for the information and also I do not see a uno section :/
arduino mini woot

ballscrewbob

Yes its odd that there is not a specific section just for regular boards :) Just that the zero is a different architecture that's all and I just found it odd to find a UNO in here...

It may not be the answer you were looking for but its the one I am giving based on either experience, educated guess, google or the fact that you gave nothing to go with in the first place so I used my wonky crystal ball.

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