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IO Rodeo

520nm LED board

520nm LED board

Regular price $ 7.00 USD
Regular price Sale price $ 7.00 USD
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520nm green light LED board for use with the Open Colorimeter with 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 and 3.3V Vcc


  • Open hardware. KiCad design files @
  • 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
  • 0603 surface mount LED and resistor
  • Peak wavelength: 516-525 nm (typ. not reported)
  • Dominant wavelength: 513-528 nm
  • Bandwidth: 15 nm
  • Luminous intensity: 210-430 mcd
  • Viewing angle: 120°
  • Vcc=3.3V
  • Mfr Part #: SZYY0603G
Note, when operating the LEDs on the PyBadge's STEMMA connector you need to enable 3.3V operation by cutting/soldering the solder jumper to the right of the D3 connector.
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