Description
The GY-30 BH1750 Digital Light Intensity Sensor Module is a high-accuracy light sensor used to measure ambient light intensity in lux. It uses the popular BH1750 sensor IC and communicates through the I2C interface, making it easy to connect with Arduino, ESP32, ESP8266, STM32, Raspberry Pi, and other microcontrollers.
GY-30 BH1750 Digital Light Sensor Module পরিবেশের আলোর তীব্রতা lux এককে পরিমাপ করতে ব্যবহৃত হয়। এটি Arduino, ESP32, ESP8266, Raspberry Pi এবং IoT প্রজেক্টের জন্য খুবই জনপ্রিয়, কারণ এতে I2C communication ব্যবহার করা হয়েছে এবং মাত্র দুইটি data line দিয়ে কাজ করে।
This module is ideal for automatic lighting systems, smart agriculture, solar tracking, weather stations, greenhouse automation, and brightness monitoring projects.
Key Features | প্রধান বৈশিষ্ট্য
- Uses BH1750 digital light intensity sensor
- Measures light intensity in lux
- I2C communication interface
- High accuracy and stable reading
- Low power consumption
- Wide measuring range for indoor and outdoor light
- Works with Arduino, ESP32, ESP8266, STM32, Raspberry Pi
- Suitable for automatic brightness control
- Compact GY-30 breakout board design
- Header pins included depending on stock batch
Applications | ব্যবহার ক্ষেত্র
- Automatic street light system
- Smart home lighting control
- Greenhouse light monitoring
- Solar tracker projects
- Weather station
- IoT environmental monitoring
- Display brightness auto-control
- Robotics light detection
- Agriculture and plant growth monitoring
- School, college, and university electronics projects
Package Includes | প্যাকেজে যা থাকছে
- 1 × GY-30 BH1750 Digital Light Intensity Sensor Module
- 1 × Header pin strip, depending on stock batch
Specifications | স্পেসিফিকেশন
- Product Type: Digital Light Intensity Sensor Module
- Model: GY-30
- Sensor IC: BH1750
- Output Unit: Lux
- Communication Interface: I2C
- Pinout: VCC, GND, SCL, SDA, ADD
- Operating Voltage: 3.3V–5V DC
- Measuring Range: Commonly 1–65535 lux
- Compatible Boards: Arduino, ESP32, ESP8266, STM32, Raspberry Pi
- Application: Ambient light measurement and automatic light control
Pin Description | পিন পরিচিতি
- VCC – Power supply input
- GND – Ground
- SCL – I2C clock line
- SDA – I2C data line
- ADD / ADDR – I2C address selection pin
Arduino Example Code
#include <Wire.h>
#include <BH1750.h>
BH1750 lightMeter;
void setup() {
Serial.begin(9600);
Wire.begin();
if (lightMeter.begin()) {
Serial.println("BH1750 Light Sensor Started");
} else {
Serial.println("Error starting BH1750");
}
}
void loop() {
float lux = lightMeter.readLightLevel();
Serial.print("Light: ");
Serial.print(lux);
Serial.println(" lux");
delay(1000);
}Additional Information | অতিরিক্ত তথ্য
The BH1750 sensor gives digital output, so it does not require analog calibration like LDR sensors. It provides more stable and accurate light measurement, especially for automation and data logging applications.
BH1750 sensor সরাসরি digital lux value দেয়, তাই LDR sensor-এর মতো analog calibration দরকার হয় না। IoT, automation এবং data logging project-এর জন্য এটি বেশি নির্ভরযোগ্য ও ব্যবহার সহজ।
Important Notes | গুরুত্বপূর্ণ নোট
- Use I2C pins correctly according to your microcontroller.
- For Arduino UNO: SDA = A4, SCL = A5.
- For ESP32: commonly SDA = GPIO21, SCL = GPIO22.
- Actual module color, PCB marking, and header type may vary depending on stock batch.
- Install the required BH1750 library before uploading the code.
Why Choose GY-30 BH1750?
- More accurate than basic LDR modules
- Direct lux measurement
- Easy I2C connection
- Works with many microcontrollers
- Excellent for smart lighting and automation projects
- Beginner-friendly and project-ready
Frequently Asked Questions
Q1: What does this sensor measure?
It measures ambient light intensity in lux.
Q2: Is BH1750 better than LDR?
Yes. BH1750 provides digital lux readings and is more accurate than a basic LDR circuit.
Q3: Can I use it with Arduino?
Yes. It works easily with Arduino using the BH1750 library.
Q4: Does it work with ESP32?
Yes. It works with ESP32 through I2C communication.
Q5: What is the communication protocol?
It uses the I2C interface.
Q6: Can it be used for automatic street light projects?
Yes. It is very suitable for automatic street light and brightness control projects.
GY-30 BH1750 Digital Light Intensity Sensor Module for Arduino
Buy GY-30 BH1750 digital light intensity sensor module for Arduino, ESP32 and IoT projects. Accurate lux measurement using I2C interface.
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