Waveshare Digital LTR390-UV Ultraviolet Sensor (C) Direct UV Index Value Output, I2C

SKU: rz24314540
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  1. Sensor ltr390-uv-01
  2. Response spectrum 280 – 430nm
  3. Communication bus i2c (constant address: 0x53)
  4. Operating voltage 3.3v/5v
  5. Dimensions 27 × 20mm
  6. Mounting hole size 2.0mm
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V Sensor (C) is an I2C digital UV sensor expansion board equipped with LTR390-UV-01, which can be used to measure UV and human visible light and can output light intensity data. UV Sensor (C) has the characteristics of sensitive sensing, fast response and small size. Its core sensor LTR390-UV-01 is integrated on a 27 × 20mm expansion board, which can be easily integrated into the device.


  1. Using LTR390-UV-01, can measure ultraviolet and visible light of human eye
  2. Built-in ADC, can directly output light intensity through I2C interface, not easy to be disturbed by noise
  3. With interrupt output and programmable upper and lower thresholds
  4. On-board level conversion circuit, compatible with 3.3V/5V working level
  5. Provide complete supporting information manual (Raspberry/Arduino/STM32 sample program and user manual, etc.)


  1. Ultraviolet tester
  2. Outdoor ultraviolet detector
  3. Germicidal lamp

Package Includes:

1 x UV Sensor (C)
1 x PH2.0 5PIN wire

Additional information

Operating Voltage(V)




Response Wavelength

280 – 430nm

Communication Interface

I2C (fixed address: 0x53)

Product Size

27 × 20mm

Fixed aperture