Ultraviolet Sensor, I2C Interface, UV Index Value Output

SKU: 15666
Part Number: UV Sensor (B)
Brand: Waveshare
UPC: 614961953482




Ultraviolet Sensor, I2C Interface, UV Index Value Output


This is an ultraviolet sensor board which will directly output UV index value via the I2C interface. It is compatible with both 3.3V and 5V levels.


  • Integrates Si1145 chip with embedded ADC, detects not only ultraviolet, but also ambient light intensity
  • Directly output UV index value via the I2C interface, needs no calibration
  • Supports interrupt output, programmable upper/lower threshold
  • Onboard voltage translator, compatible with 3.3V/5V operating voltages


  • Operating voltage: 3.3V ~ 5V
  • Dimension: 26mm × 16mm
  • Mounting hole size: 2.0mm
  • Operating temperature: –40 ~ +85 °C


  • VCC: Power input, 3.3V/5V
  • GND: Ground
  • SDA: I2C data pin
  • SCL: I2C clock pin
  • INT: interrupt output, optional


UV Sensor (B) dimensions

Development Resources

Wiki : www.waveshare.com/wiki/UV_Sensor_(B)


UV Sensor UV Sensor (B)
Sensor IC GUVA-S12SD Si1145
Hardware Interface Analog output I2C
Calibration Required Yes, the analog output needs to be turned into UV index value No, directly outputs UV index value
Intensity Measuring N/A Yes
Interrupt Output N/A Yes
UV Response Spectrum 200nm-370nm 300nm-400nm
Dimensions 22mm × 16mm 26mm × 16mm

Weight: 0.007 kg

Quick Overview

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