557nm LED Board

557nm 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 board via a 4-pin cable and JST SH connectors. Open hardware KiCad design files @ https://github.com/iorodeo/i_control_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
• 557nm LED Mfr Part #: APT1608PGW