7Semi OPT3004 Digital Ambient Light Sensor Breakout with I2C STEMMA QT / Qwiic

The 7Semi OPT3004 Digital Ambient Light Sensor Breakout is a compact and high-precision module designed to measure visible light just the way the human eye perceives it. Built around the OPT3004 sensor, it delivers exceptional accuracy, wide dynamic range, and excellent infrared rejection, making it ideal for real-world lighting applications.

With seamless I2C compatibility and Qwiic/STEMMA QT support, this breakout is easy to integrate into microcontroller or IoT setups without complicated wiring.

Whether you’re building smart lighting systems, automating energy-efficient environments, or experimenting with environmental monitoring projects, this module provides consistent and dependable lux readings.

Its advanced design, low-power performance, and precise optical filtering make it a reliable choice for hobbyists, students, and professional developers looking for accurate ambient light sensing in their projects.

Features:

• The breakout uses the OPT3004 sensor, which delivers precise visible light measurements with excellent IR rejection to mimic human eye response.
• It offers a wide measurement range from 0.01 lux to 83,000 lux, allowing accurate performance in dim to bright environments.
• The module includes automatic gain ranging with a 23-bit effective dynamic range, ensuring stable results without manual adjustments.
• Designed with I2C support and Qwiic/STEMMA QT connectors, it enables quick, solder-free integration into various electronics projects.
• The board operates smoothly on both 3.3V and 5V supplies, making it compatible with popular microcontroller platforms.
• Its compact 27×20 mm footprint makes it suitable for space-constrained embedded or portable applications.
• Built with precision optical filtering to block over 99% infrared light within a ±85° angle for truly accurate lux readings.