SKU: SENS-3278
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Generic GY-302 BH1750 Light Intensity Module - I2C Interface

₹121.00 (Inclusive of all taxes)
Out of Stock

The GY-302 BH1750 Light Intensity Module is a digital ambient light sensor with an I2C interface, compatible with 3.3V and 5V logic systems like Arduino, Raspberry Pi, ESP32, and STM32. It provides high-resolution lux measurements for precise backlight control and environmental monitoring.

Features

  • High-precision digital ambient light sensor with 1 lux resolution.
  • Wide operating voltage range from 3V to 5V DC.
  • Integrated 16-bit ADC for direct digital output via I2C.
  • Compact module design (18mm x 13mm) for easy integration.
  • ROHM Semiconductor BH1750FVI chip for reliable and stable performance.

Out of stock

Description

The GY-302 module utilizes the ROHM Semiconductor BH1750FVI digital ambient light sensor IC, which employs a photodiode array and a high-resolution 16-bit analog-to-digital converter. This design enables precise measurement of illuminance across a wide dynamic range without requiring external signal conditioning components. The sensor communicates via a standard I2C bus interface, providing direct digital lux readings and simplifying integration with microcontrollers and single-board computers.

Engineered for stability and accuracy, the module operates effectively within a 3V to 5V supply range, making it compatible with both 3.3V and 5V logic families. Its compact form factor and simple four-wire connection (VCC, GND, SDA, SCL) make it an ideal choice for embedded systems, IoT devices, and applications requiring automatic display brightness adjustment based on ambient light conditions.

Key Features

  • High-resolution 16-bit ADC integrated for direct digital lux output.
  • I2C digital interface for simple two-wire communication with host controllers.
  • Wide operating voltage range (3V to 5V DC) for flexible system integration.
  • Compact and lightweight PCB module design for space-constrained applications.
  • Utilizes the original ROHM Semiconductor BH1750FVI sensor IC for consistent performance.
  • No need for external components or complex calibration procedures.
  • Supports high-resolution measurement across a broad illuminance range.
  • Optimized performance-to-cost ratio for consumer and industrial prototyping.

Applications

  • Automatic backlight dimming for mobile devices, LCD displays, and instrument panels.
  • Ambient light monitoring in smart home systems and IoT environmental sensors.
  • Energy-saving lighting control in commercial buildings and streetlight systems.
  • Photography and imaging equipment for automatic exposure and flash control.
  • Agricultural and horticultural monitoring systems for greenhouse light management.

Technical Specifications

Model / NameGY-302 BH1750 Light Intensity Module
Sensor ICROHM Semiconductor BH1750FVI
Operating Voltage3V to 5V DC
InterfaceI2C
Resolution1 Lux
ADC Resolution16-bit
Module Length18 mm
Module Width13 mm
Module Weight5 g

Frequently Asked Questions

What is the operating voltage range for the GY-302 BH1750 module?

The module operates from 3V to 5V DC. This range makes it directly compatible with both 3.3V logic systems (like Raspberry Pi or ESP32) and 5V systems (like most Arduino boards) without requiring a logic level shifter.

How do I connect and communicate with this sensor?

The module uses a standard I2C interface. Connect the VCC and GND pins to your system's power supply, and connect the SDA and SCL pins to the corresponding I2C bus lines on your microcontroller. You can then use existing BH1750 libraries to read digital lux values directly.

What is the measurement resolution and accuracy?

The integrated 16-bit ADC provides a resolution of 1 lux. The BH1750FVI chip is designed for high-precision determination of ambient light intensity, offering accurate readings across a wide range of illumination conditions for reliable system control.

Is this sensor suitable for outdoor use?

While the sensor IC itself is robust, the GY-302 module is an open PCB without inherent weatherproofing. For outdoor applications, it must be housed in a protective enclosure with a transparent window for the light sensor to ensure accurate readings and prevent damage from moisture and dust.

Package Includes

  • 1 x GY-302 BH1750 Light Intensity Module

Additional Information

Weight 0.005 kg
Dimensions 1.8 × 1.3 cm