Adafruit AS7331 UV / UVA / UVB / UVC Sensor Breakout - STEMMA QT / Qwiic

Adafruit Industries, LLC mail

OSHWA UID

US002809 Project Website

Certification Date

March 13, 2026

Country

United States of America

The Adafruit AS7331 UVA / UVB / UVC Sensor Breakout is a perfect solution to UV sensing, no matter what 'type' you're sensing. Most UV sensors do just UVA, maybe ambient light too. But the AS7331 can read and differentiate between all the three bands. That means you can use it for human and agricultural UV alerts that tend to focus on UVA and UVB as well as agricultural, germicidal, curing, and other UVC use cases. We particularly like that the three measurements are separated not just mixed together into one number.

Version

Rev A

Licenses
Hardware
Other
Software
MIT
Documentation
CC BY-SA
View Documentation

Certification mark

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Project Type
Electronics
Keywords
Adafruit AS7331 UV / UVA / UVB / UVC Sensor Breakout - STEMMA QT / Qwiic, CircuitPython

Citations