660nm LED Board

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660nm LED board with current control (CC) for use with the Open Colorimeter. STEMMA QT for connecting to the Adafruit STEMMA QT TSL2591 High Dynamic Range Digital Light Sensor boar d via a 4-pin cable and JST SH connectors. Open hardware KiCad design files @ https://github.com/iorodeo/i_control_led. LED specifications & datasheet: 660nm LED PCB Features On board voltage regulator enables operation from a 3.3V to 5V input voltage Active 16mA constant current LED driver maintains stable LED current. Dimensions: 25.4 mm x 20 mm x 1.6 mm Two 4-pin JST SH connectors (QWIIC/STEMMA QT) Four M2.5 through holes for mounting e.g. to a cuvette holder Show more