Adafruit MAX44009 Wide-range Lux Light Sensor - STEMMA QT / Qwiic
The Adafruit MAX44009 is a high-precision ambient light sensor module with an ultra-wide 22-bit dynamic range from 0.045 lux to 188,000 lux. Featuring a built-in 3.3V regulator and logic level shifting, it is directly compatible with 3.3V and 5V systems like Arduino, Raspberry Pi, and other microcontrollers via its I2C interface and STEMMA QT / Qwiic connectors.
Features
- Ultra-wide 22-bit dynamic range from 0.045 lux to 188,000 lux
- Direct lux output via I2C interface; no manual gain or unit conversion required
- Built-in auto-ranging ensures stable readings across extreme lighting conditions
- Integrated 3.3V regulator and logic level shifting for 3.3V/5V system compatibility
- Plug-and-play connectivity with STEMMA QT and Qwiic connector systems
Out of stock
The Adafruit MAX44009 Lux Light Sensor utilizes a high-performance photodiode and a sophisticated 22-bit analog-to-digital converter to deliver precise ambient light measurements. Its auto-ranging architecture automatically adjusts the internal gain and integration time, providing seamless and accurate lux readings from near-total darkness to direct sunlight without user intervention.
Designed for seamless integration, the module includes a built-in 3.3V regulator and logic-level translation circuitry, ensuring safe and reliable operation with both 3.3V and 5V logic microcontrollers. The standardized I2C interface, coupled with Adafruit’s STEMMA QT and Qwiic compatible connectors, enables rapid prototyping and system integration without soldering.
Additional Information
| Weight | 0.002 kg |
|---|---|
| Dimensions | 1.8 × 2.5 × 0.5 cm |















