Waveshare UV Detection Sensor Module B I2C Ultraviolet Ray Intensity Detector UV Index Module for Raspberry PiArduinoSTM32 Support DC 3V and 5V

Overview 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. Features 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 calculation Supports interrupt output, programmable upper/lower threshold Onboard voltage translator, compatible with 3.3V/5V operating voltages Specifications Operating voltage: 3.3V ~ 5V Dimension: 26mm × 16mm Mounting hole size: 2.0mm Operating temperature: –40 ~ +85 °CPinouts VCC: Power input, 3.3V/5V GND: Ground SDA: I2C data pin SCL: I2C clock pin INT: interrupt output, optional Downloads Wiki :www.waveshare.com/wiki/UV_Sensor_(B)?Amazon Package Content UV Sensor (B) x1 PH2.0 5PIN wire x1 FAQ The output voltage of the UV sensor is very low. Why? The output voltage of the UV sensor increases with the enhancement of the ultraviolet intensity. And the maximum output voltage of UV sensor is 2-3V. When the ultraviolet intensity is not strong, the output voltage may be in the range of 0.01-0.1V. It's recommended to test the module outdoor or irradiate the module with UV LED.