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How does this compare to the arduino compatible integrated spectrometer like https://www.sparkfun.com/products/14351 https://www.sparkfun.com/products/14351 https://learn.adafruit.com/adafruit-as7341-10-channel-light-color-sensor-breakout https://learn.adafruit.com/adafruit-as7341-10-channel-light-... https://www.sparkfun.com/products/15050 https://www.sparkfun.com/products/15050 ?