Adafruit LTR390 UV Light Sensor - STEMMA QT/Qwiic
The Adafruit LTR390 UV Light Sensor is a digital I2C breakout module providing true UVA and ambient light (ALS) spectral sensing, compatible with 3.3V and 5V logic systems like Arduino, Raspberry Pi, and other microcontrollers via its STEMMA QT/Qwiic connectors.
Features
- True UVA spectral sensing with peak response between 300-350 nm.
- Integrated ambient light sensor (ALS) with 500-600 nm spectral range.
- Onboard I2C interface with a default address of 0x53 for easy daisy-chaining.
- STEMMA QT / Qwiic connector system for solderless plug-and-play prototyping.
- Wide 3V to 5V DC supply range compatible with Arduino, Raspberry Pi, and Feather boards.
Out of stock
The Adafruit LTR390 UV Light Sensor breakout provides genuine ultraviolet-A (UVA) spectral measurement, distinguishing it from sensors that approximate UV Index from visible light levels. Its dedicated photodiode offers a peak spectral sensitivity between 300 and 350 nm, making it suitable for applications requiring accurate UVA exposure monitoring. The module also includes a separate ambient light sensor (ALS) channel for measuring visible light in the 500-600 nm range.
All signal conditioning, biasing, and analog-to-digital conversion are handled internally by the LTR390 IC, eliminating the need for external ADCs and simplifying integration. The breakout board features level-shifting circuitry to ensure safe operation with both 3.3V and 5V logic levels, making it directly compatible with a wide range of development platforms from Arduino Uno to Raspberry Pi and Adafruit Feather boards.
Additional Information
| Weight | 0.008 kg |
|---|---|
| Dimensions | 3 × 2 × 1 cm |
