Adafruit LTR-329 Ambient Light Sensor Module - I2C STEMMA QT/Qwiic
The Adafruit LTR-329 is a high-resolution digital ambient light sensor module featuring the LTR-329ALS-01 chip. It provides 16-bit lux measurements via I2C interface, compatible with 3.3V and 5V logic systems like Arduino, Raspberry Pi, and ESP32. The sensor separates visible and infrared light for accurate ambient light detection across an ultra-wide range from 0.01 to 64,000 lux.
Features
- LTR-329ALS-01 sensor chip with dual photodiodes for visible and IR light.
- Ultra-wide 16-bit measurement range from 0.01 lux to 64k lux.
- I2C interface with STEMMA QT / Qwiic connector for solder-free wiring.
- Operates from 3.0V to 5.0V DC with low current consumption.
- Six configurable gain settings (1X to 96X) and adjustable integration time.
Out of stock
The Adafruit LTR-329 breakout board integrates the LTR-329ALS-01 CMOS digital light sensor, which converts light intensity into a digital signal via a direct I2C interface. Its design provides a linear response over an exceptionally wide dynamic range, making it suitable for applications from dark indoor environments to direct sunlight. The sensor features separate channels for visible and infrared light, enabling precise ambient light detection that better matches human eye response.
Factory-set trimming ensures minimal unit-to-unit variation for consistent performance. The module includes onboard level shifting and pull-up resistors, making it plug-and-play ready for 3.3V or 5V microcontroller systems. Its small form factor, breadboard-friendly layout, and mounting holes facilitate easy integration into portable, battery-powered, or embedded monitoring projects.
Additional Information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 12 × 8 × 3 cm |
