GY-49 MAX44009 Ambient Light Sensor

Ultra-Wide 22-Bit Dynamic Lux Range: Measures light levels across an extraordinary range from 0.045 lx up to 188,000 lx, spanning complete darkness to direct sunlight without manual gain tuning.

Ultra-Low Current Consumption: Draws only 0.65µA operating current, making it an exceptional choice for battery-powered IoT devices and solar-harvesting systems.

Human-Eye Spectral Matching: Features integrated optical filtering to closely align with the human eye's visual spectral response (550 nm peak), providing true perceived light intensity.

I²C Digital Telemetry: Communicates via standard I²C protocol with selectable slave address settings (ADDR pin), streamlining multiplexed sensor bus architectures.

Programmable Interrupt Output: Outfitted with an INT pin to trigger microcontroller wake-up alerts when illuminance thresholds are crossed, minimizing host MCU processing overhead.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with gold-plated contact terminals and surface-mount MAX44009 IC sensor package.

Technical Specifications:

Operating Voltage: 2.7V - 5.5V DC (onboard LDO regulator).

Measurement Range: 0.045 lx - 188,000 lx (Lux).

Communication Interface: I²C Serial Interface.

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Color: Purple PCB with Gold-Plated Solder Terminals.

Usage Advice: Connect VCC (3.3V-5V), GND, SCL, and SDA to your microcontroller's I²C bus; assign the ADDR pin high or low to set unique bus addresses.

Maintenance: Keep the optical lens element clear of dust, grease, or moisture; wipe gently using a soft, dry microfiber cloth.

Essential Ultra-Low-Power Lux Meter: Position as a top-tier digital light sensor for smart home display backlighting, portable environmental loggers, solar arrays, and energy-conscious weather stations.

Highlight Wide Dynamic Span & Efficiency: Emphasize how its 188,000 lx maximum limit easily handles harsh direct sunlight where standard 65,000 lx sensors saturate, all while using less than 1 uA of current.

Recommended Cross-Sell Add-ons: Pair with OPT3001 Ambient Light Sensor, GY-30 BH1750FVI Digital Light Intensity Illumination Sensor Module, TEMT6000 Light Sensor Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Light Sensor Module collection page as your primary ultra-wide dynamic range digital ambient light sensor.