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Question about RGB color sensor TCS34725
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Question about RGB color sensor TCS34725

by m_baumknecht on Wed Jul 10, 2019 4:06 am

hey guys

I'm about to buy a larger quantity of RGB color sensors for a project and wanted to know if they can also detect direct colored light well, or if there might be issues with that.

all the tutorials and videos I've seen detect indirect light (i.e. white light refracted from colored surfaces) so I was wondering if there could be issues with detecting colors from direct light (from a colored LED or flashlight shining at the sensor) -- I could imagine that maybe that it's too bright and the sensor won't be able to differentiate colors properly.

pointers are much appreciated.

best wishes to everyone
markus

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Re: Question about RGB color sensor TCS34725

by adafruit_support_bill on Wed Jul 10, 2019 5:58 am

The sensor will work equally well with direct or reflected light. It has no way to tell what path a photon took to reach it.

The sensor has a very wide dynamic range. The gain and integration time can be adjusted to accommodate very dim to very bright illumination of the sensor surface.

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Re: Question about RGB color sensor TCS34725

by m_baumknecht on Fri Jul 12, 2019 2:41 am

ok great, thank you!

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Re: Question about RGB color sensor TCS34725

by m_baumknecht on Fri Jul 12, 2019 7:34 am

ah, sorry I have another question if you don't mind.

I just stumbled across the APDS9960 proximity, light, RGB, and gesture sensor... I assume everything you said holds true for that sensor also?

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Re: Question about RGB color sensor TCS34725

by adafruit_support_bill on Fri Jul 12, 2019 8:43 am

Yes. The color-sensing capabilities of the APDS9960 are similar to the TCS34725. The built-in IR proximity sensor adds proximity and gesture detection capabilities as well.

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Re: Question about RGB color sensor TCS34725

by m_baumknecht on Tue Aug 06, 2019 6:05 am

ok thank you!

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Please be positive and constructive with your questions and comments.