OPT3002 Ambient Light Sensor Module Proxy - I2C Interface

Name: OPT3002 Ambient Light Sensor Module Proxy - I2C Interface
Brand: Generic
SKU: SENS-3175
Price: 219.00 INR
Availability: OutOfStock

₹219.00 (Inclusive of all taxes)

Out of Stock

The OPT3002 Ambient Light Sensor Module is a high-precision, low-power I2C sensor designed for Arduino, Raspberry Pi, and other 3.3V/5V microcontroller systems. It provides accurate ambient light measurements from 0.01 to 83,000 Lux with a spectral response closely matching the human eye.

Features

Human eye response with >99% IR rejection for accurate Lux readings
Ultra-wide 0.01 to 83,000 Lux measurement range
Ultra-low 1.8µA typical operating current for battery-powered designs
Wide 1.6V to 3.6V supply voltage and 5.5V tolerant I/O
I2C digital interface with flexible interrupt system

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Description

The OPT3002 Ambient Light Sensor Module integrates Texas Instruments’ OPT3002 digital sensor IC, which employs a precision photodiode and optical filter to achieve a spectral response closely aligned with the human eye’s sensitivity. Its integrated optical filter blocks over 99% of infrared light, ensuring Lux readings are not skewed by IR-rich light sources. The sensor features automatic full-scale range selection across 12 binary-weighted ranges, delivering a 23-bit effective dynamic range for consistent accuracy across its entire measurement span.

Engineered for low-power operation, the module draws a typical current of just 1.8µA, making it ideal for battery-operated IoT devices, wearables, and portable instrumentation. It operates across a wide temperature range from -40°C to +85°C, ensuring reliable performance in demanding environmental conditions. The module’s I2C interface simplifies integration with common microcontrollers and single-board computers, while its interrupt pin can be configured for threshold-based system wake-ups.

Key Features

High-precision ambient light sensing with human eye spectral response
Integrated optical filter rejects >99% infrared light for accurate Lux measurement
Automatic full-scale range selection across 12 binary-weighted ranges
23-bit effective dynamic range for seamless operation from dark to bright light
Ultra-low power consumption (1.8µA typical) ideal for battery-powered applications
Wide 1.6V to 3.6V supply range with 5.5V tolerant digital I/O pins
Flexible interrupt system for configurable light-level threshold alerts
Compact PCB module with standard 0.1" header footprint for easy prototyping

Applications

Automatic display backlight dimming in smartphones, tablets, and industrial HMIs
Ambient light monitoring for smart lighting control in IoT and building automation
Light intensity data logging in agricultural and environmental monitoring stations
Battery-powered wearable devices requiring ultra-low power light sensing
Photometric testing and calibration equipment requiring human-eye response accuracy

Technical Specifications

Item Type	Light Sensor Module
Model Number	OPT3002
Measurement Range	0.01 Lux to 83,000 Lux
Dynamic Range	23-bit
Operating Current	1.8µA (typical)
Operating Temperature	-40°C to +85°C
Supply Voltage	1.6V to 3.6V
Interface	I2C
I/O Voltage Tolerance	5.5V
Module Length	18 mm
Module Width	14 mm
Module Weight	3 g

Frequently Asked Questions

What is the operating voltage range for this OPT3002 module?

The module operates from a supply voltage of 1.6V to 3.6V. Its digital I/O pins are 5.5V tolerant, allowing safe communication with 5V microcontroller systems like Arduino Uno when using a level shifter or appropriate pull-up resistors.

How do I connect and communicate with this sensor?

The module uses a standard I2C interface. Connect the SDA and SCL pins to your microcontroller, along with VCC (1.6-3.6V) and GND. The I2C address is configurable via the ADDR pin, allowing you to select one of four possible addresses to avoid bus conflicts.

How does the sensor achieve such a wide measurement range?

The OPT3002 IC uses automatic full-scale range selection across 12 binary-weighted ranges. This internal gain-ranging, combined with its 23-bit effective dynamic range, allows it to seamlessly measure from very dark (0.01 Lux) to very bright (83,000 Lux) conditions without manual configuration.

Is the sensor suitable for outdoor or high-temperature environments?

Yes, the sensor is rated for an operating temperature range of -40°C to +85°C, making it suitable for industrial, automotive, and outdoor applications. Its IR-filtered design also ensures stable readings under various artificial and natural light sources.