Waveshare UV Sensor

Description:

• Analog Version: Uses a GUVA-S12SD sensor to output an analog voltage that increases linearly with UV intensity. It is ideal for basic UV detection and requires a microcontroller with an ADC to interpret the values.
• Digital Version (C): Uses the LTR390-UV-01 sensor, which communicates over I2C. It can measure both ultraviolet rays and visible light, providing a direct UV index output that is less susceptible to noise interference than analog signals.

Features:

• Dual-Light Detection (Digital only): Measures both UV and human-visible light intensity.
• Integrated Level Conversion: Onboard circuitry makes these modules compatible with both 3.3V and 5V systems (Raspberry Pi, Arduino, STM32).
• Linear Output: Provides predictable voltage (Analog) or digital data (Digital) relative to UV intensity.
• Compact Form Factor: Tiny PCB footprints make them easy to integrate into wearable or handheld devices.
• Onboard Interrupt (Digital only): Supports programmable upper and lower thresholds to trigger an interrupt signal to the host MCU.

Specifications:

• Response spectrum: 200nm-370nm
• Dimension: 22.0mm * 16.0mm
• Mounting holes size: 2.0mm

Applications:

• Ultraviolet tester
• Outdoor ultraviolet detector
• Germicidal lamp

How To Use:

• VCC ↔ 3.3V ~ 5.0V
• GND ↔ power supply ground
• AOUT ↔ MCU.IO (analog output)

Downloads