Question: what are the best light sensors?

omarion is asking a question about spectrometry: Follow this topic

omarion asked on September 26, 2019 17:33
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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.



3 Comments

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

led-2.jpg

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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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