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SI1145 Digital UV Index / IR / Visible Light Sensor

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97.59 TL



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  • This sensor has a calibrated light sensing algorithm that can calculate UV Index. It doesn't contain an actual UV sensing element, instead it approximates it based on visible & IR light from the sun.

    It is a digital sensor that works over I2C and you can safely use it with 3 or 5V microcontrollers. You can connect up an IR LED to the LED pin and use the basic proximity sensor capability that is in the SI1145 as well.


    • IR Sensor Spectrum: Wavelength: 550nm-1000nm (centered on 800)
    • Visible Light Sensor Spectrum: Wavelength: 400nm-800nm (centered on 530)
    • Voltage Supply: Power with 3-5VDC
    • Output Type: I2C address 0x60 (7-bit)
    • Operating Temperature: -40°C ~ 85°C
    • Dimensions: 20mm x 18mm x 2mm
    • Weight: 1.4g


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