Grove - Sunlight Sensor
  • Grove - Sunlight Sensor
  • Grove - Sunlight Sensor
  • Grove - Sunlight Sensor

Grove - Sunlight Sensor

SKU 101020089
  • Wide spectrum detection range
  • 3.3V and 5V dual mode
  • Detect sunlight directly
  • I2C Interface
  • Grove connector compatible
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    Summer is coming, want to make a UV detector to know the UV index when you are under the sun? Grove - Sunlight Sensor is recommend here.

    Grove - Sunlight Sensor is a multi-channel digital light sensor, which has the ability to detect UV-light, visible light and infrared light.

    This device is based on SI1145, a new sensor from SiLabs. The Si1145 is a low-power, reflectance-based, infrared proximity, UV index and ambient light sensor with I2C digital interface and programmable-event interrupt output. This device offers excellent performance under a wide dynamic range and a variety of light sources including direct sunlight.

    Grove - Sunlight Sensor include an on-bard Grove connector, which help you to connect it your Arduino easily. You can use this device for making some project which need to detect the light, such as a simple UV detector.



    • Digital light sensor

    • Wide spectrum detection range

    • Programmable configuration

    • 3.3/5V Supply

    • Detect sunlight directly

    • Grove compatible

    • I2C Interface(7-bit)



    • Operating Voltage: 3.0-5.5V

    • Working current: 3.5mA

    • Wave length: 280-950nm

    • Operating Temperature: -45-85oC


    Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.

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    Questions and Answers
    can I hookup, 2-3 together on the same seeedstudio V4.2 with expansion board and still get IR, Vis, UV reading out to the ide?
    on Dec 14,2016
    Replyupvote ()

    Hello, yes you can.

    You need a software I2C because you can't connect 3 modules in one I2C bus.

    About software I2C please refer to



    on Dec 15,2016 10:05 AM
    Replyupvote ()
    Hi does grove support any sd card data logging together with grove sunlight and RTC? 
    on May 01,2017 02:41 AM
    Replyupvote ()
    Hello! kindly tell me how much maximum lux that we can measure using this sensor module?
    on Nov 30,2016
    Replyupvote ()


    It can measures  up to 128 klx (direct sunlight). Please refer the following datasheet

    on Nov 30,2016 14:51 PM
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