why 6-channel Not 3

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zensealiuivf
 
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why 6-channel Not 3

Post by zensealiuivf »

Adafruit AS7262 6-Channel Visible Light has violet, red, orange, blue, green, yellow channels to sense a color. Why does it just use Red, Green, Blue channel?

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dastels
 
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Re: why 6-channel Not 3

Post by dastels »

Do you men why doesn't it just use red, green, and blue?

RGB in the case of LEDs uses red, green, and blue in controlled brightnesses to simulate a spectrum of colors. Actual colored light exhibits various wavelengths (that whole light being a wave/particle thing). So the sensor detects the strengths of 6 different wavelengths (450nm, 500nm, 550nm, 570nm, 600nm and 650nm) which correspond to the different colors. Full information is in the sensor datasheet: https://cdn-learn.adafruit.com/assets/a ... 281%29.pdf.

Dave

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