It would be nice if there was a revision of the color sensor that allows the LEDs to be turned off/on (via I2C). So it can be used for measuring a light source's color spectrum (leds off) as well as an object's color (leds on).
Best posts made by Zavyru
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[Product Revision] Color Sensor (U009) - Ability to turn off LEDs
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[Product] Core Stack Module: USB-C PD (as HV source and 5v system power step down)
A Core Stack module that can accept power via USB-C PD, controlled via I2C and dip switches, with option to route power over HV.
On board 5v regulator to supply system power from USB-C input.
Connector for external use of USB-C PD power.Dip switches could be:
1: Off = HV Disconnected, On = HV Connected to USB-C PD Output
3 other dip switches:
000 = I2C Mode (full PPS control)
001 = 5V
010 = 9V
011 = 15V
100 = 20V
101 = 28V
110 = 36V
111 = 48V -
RE: [Product Revision] ATOMIC TF-Card Reader (A135) with G39/G38 exposed as Grove
SparkFun makes something like that: https://www.sparkfun.com/products/15164
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RE: [Product Revision] Color Sensor (U009) - Ability to turn off LEDs
Using the INT is a good idea (I was thinking an extra IC), but now that you mention it, having both white & UV could be useful to others as well.
I shouldn't have put the word "spectrum", but rather (color) "temperature" (what I'm using the sensor for, roughly calculated from the RGB intensities). To truly read a spectral response would require a prism/grating and a linear monochromatic sensor (and calibration).