{"title":"SparkFun Tristimulus Color Sensor - OPT4048DTSR (Qwiic)","handle":"sparkfun-tristimulus-color-sensor-opt4048dtsr-qwiic","url":"/products/sparkfun-tristimulus-color-sensor-opt4048dtsr-qwiic","description":"The SparkFun Tristimulus Color Sensor is built around the Texas Instruments OPT4048DTSR — a high-speed, high-precision four-channel colour sensor. Three channels closely match the CIE 1931 tristimulus XYZ spectra with excellent IR rejection, while a fourth wide-band channel provides broad spectral response.\n\nFrom these measurements, you can extract light intensity (lux), colour coordinates (CIE XY, LUV), and correlated colour temperature (CCT). Two Qwiic connectors and broken-out 0.1″ headers provide flexible I2C connectivity. An Arduino library is available via the Library Manager (search \"SparkFun OPT4048\").\n\nKey Features\n\n\nOPT4048DTSR Sensor – Four-channel tristimulus colour sensor matching CIE 1931 spectra\n\n26-Bit Dynamic Range – 2.15 mlux to 144 klux with semi-logarithmic output\n\nHigh Precision – 12 configurable conversion times from 600 μs to 800 ms per channel\n\nQwiic / I2C Interface – Two horizontal Qwiic connectors, plus 0.1″ headers\n\nSelectable I2C Address – 0x44 (default), 0x45, or 0x46\n\nUltra-Low Power – 24 μA operating, 2 μA standby\n\nHardware Interrupt – External pin for synchronised triggers\n\nAutomatic Range Selection – Seven binary logarithmic full-scale ranges with excellent gain matching\n\n\nSpecifications\n\n\nSensor – OPT4048DTSR (Texas Instruments)\n\nChannels – 4 (XYZ tristimulus + wide-band)\n\nDynamic Range – 2.15 mlux to 144 klux\n\nSupply Voltage – 1.71–3.6 V\n\nOperating Current – 24 μA (2 μA standby)\n\nI2C Address – 0x44 (default), 0x45, 0x46\n\nBoard Size – 1″ × 1″ (standard SparkFun footprint)\n\nOperating Temperature – -40°C to +85°C\n\n\nIdeal For\n\nDisplay brightness and colour temperature adjustment\nCamera colour temperature correction\nTrue colour recognition and sorting\nAmbient light measurement and lux sensing\nMedical and scientific colour analysis\n\n\nPackage Contents\n\n1× SparkFun Tristimulus Color Sensor – OPT4048DTSR (Qwiic)\n\n\nResources\n\nHookup Guide\nOPT4048 Datasheet (PDF)\nSchematic (PDF)\nArduino Library (GitHub)\nHardware Design Files (GitHub)\n","vendor":"SparkFun","product_type":"","in_stock":true,"options":[],"variants":[{"id":1341,"title":"Default Title","sku":"SF-SEN-22638","price":30.1,"on_sale":false,"in_stock":true,"available_quantity":5,"option1":"Default Title"}]}