The SparkFun Qwiic Tristimulus Color Sensor is built around the OPT4048, featuring a single-chip high-resolution color sensor capable of measuring four channels, each with specific engineered spectral responses. The standard and mini-sized breakout boards are equipped with two I2C Qwiic connectors to make interfacing with the OPT4048 a bit easier. It’s part of SparkFun’s Qwiic connect system, so designers don’t have to do any soldering to figure out how things are oriented. However, broken out 0.1"-spaced pins are available if using breadboard.
Three of the four channels on the OPT4048 closely match the CIE tristimulus spectra, with the fourth channel having a wide-band spectral response. With measurements from these channels, essential characteristics of the lighting environment can be extracted, like (i) light intensity (lux), (ii) color in CIE XY, LUV coordinates, and (iii) correlated color temperature.
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