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

SKU: 20467
Part Number: UV Sensor (C)
Brand: Waveshare


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Digital LTR390-UV ultraviolet Sensor (C), Direct UV Index Value Output, I2C bus
Digital UV Sensor

Ultraviolet ray sensing & ambient light intensity measuring

Direct outputs UV index and light intensity value

Features at a glance

The UV Sensor (C) is an I2C digital UV sensor module which incorporates LTR390-UV-01, designed for measuring ultraviolet ray as well as visible light, and providing light intensity value output. With features including sensitive detection, fast response, and small form factor, the UV Sensor (C) integrates the main sensor LTR390-UV-01 on its 27 × 20mm body, allowing easy integration into other devices.

  • Incorporates LTR390-UV-01, for measuring ultraviolet ray and visible light
  • Embedded ADC, direct light intensity value output via I2C bus, less noise interference
  • Supports interrupt output, programmable upper/lower threshold
  • Onboard voltage translator, compatible with 3.3V/5V operating voltages
  • Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)
Sensor LTR390-UV-01 Response Spectrum 280 - 430nm
Communication bus I2C (constant address: 0x53) Operating voltage 3.3V/5V
Dimensions 27 × 20mm Mounting hole size 2.0mm
I2C control interface

supports host boards including Raspberry Pi/Arduino/STM32...

VCC 3.3V/5V power input
SDA connects to MCU I2C data pin
SCL connects to MCU I2C clock pin
INT GPIO input, triggering pulse signal on interruption

Hardware connection

connecting with Raspberry Pi

connecting with Arduino board

Outline Dimensions
Resources & Services

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Selection guide
 UV SensorUV Sensor (C)
Sensor GUVA-S12SD LTR390-UV-01
Hardware interface analog output I2C
Calibration Required Yes, the analog output needs to be turned into UV index value No, direct outputs UV index value
Intensity Measuring N/A Yes
Interrupt Output N/A Yes
UV Response Spectrum 200-370nm 280-430nm
Dimensions 22 × 16mm 27 × 20mm

Weight: 0.007 kg

Quick Overview

  1. UV Sensor (C) x1
  2. PH2.0 5PIN wire x1