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Question: what are the best light sensors?

omarion is asking a question about spectrometry: Follow this topic

by omarion | with amallozzi September 26, 2019 17:33 | #20997

We are looking into pieces for #wateristics and exploring sensors.

We came across this article: https://makezine.com/projects/make-36-boards/how-to-use-leds-to-detect-light/

We want to know which is a better light sensor: LED or silicon photodiode? For #wateristic, we need the sensor to detect light in the 450-490 nm range, so a filter may be needed.

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omarion commented 5 months ago

Looking into the Vernier Go Direct Color & Light Sensor: https://www.vernier.com/products/sensors/light-sensors/gdx-lc/

This simple light detector: https://www.instructables.com/id/Simple-Light-Detector-with-Sensitivity-Control-No/

  
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omarion commented 5 months ago

Might be able to use a green LED to detect green light. Image below from this article:

led-2.jpg

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dimitriconlan commented 4 months ago

Everything depends on where you can or what you need it for, if it's for outdoors will be much more different than if you look for one for outdoors

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