BH1750 Light Sensor Module is a high-precision, digital ambient light detection module widely used in electronics, robotics, and IoT projects. It features an integrated BH1750FVI sensor that outputs calibrated lux (lx) readings over an I2C interface, making it a plug-and-play solution for developers working with microcontrollers like Arduino, ESP32, Raspberry Pi, and other platforms.

The BH1750 light sensor module is designed to provide a direct digital output of ambient light intensity in lux, eliminating the need for complex analog-to-digital conversion or calibration routines. This makes it significantly more reliable and accurate than traditional photoresistors or LDRs (Light Dependent Resistors), especially in variable lighting conditions.

With its high-resolution 16-bit ADC, the sensor can detect light levels ranging from 1 lux to 65535 lux, making it suitable for applications that require fine sensitivity, such as automatic lighting controls, solar panel positioning, weather stations, greenhouse monitoring, smart homes, and wearable devices.

🔍 Key Features of BH1750 Light Sensor Module:

• Sensor Chip: BH1750FVI

• Output Type: Digital Lux Value (no need for complex calibration)

• Interface: I2C (Supports multiple devices with different addresses)

• Operating Voltage: 3.0V to 5.0V

• Measurement Range: 1 lx to 65535 lx

• Power Consumption: Ultra-low power, ideal for battery-powered IoT nodes

• Response Time: Fast and responsive (typically 120ms)

• Board Dimensions: Compact, easy to embed in custom enclosures

• Pinouts: VCC, GND, SCL, SDA

⚙️ Why Choose the BH1750 Light Sensor Module?

Unlike analog sensors, the BH1750 delivers precise readings in lux, which is the standard SI unit of light intensity. The integrated ADC ensures clean digital output, making it perfect for applications where light levels need to be monitored and responded to with accuracy. It’s commonly used in commercial lighting systems, smart agriculture, and even smartphone brightness controls.

This sensor works seamlessly with popular development platforms. Using just two wires over the I2C protocol, it conserves GPIO pins while allowing you to connect multiple devices. Libraries for Arduino and ESP-IDF (for ESP32) are widely available, making integration simple even for beginners.

🛠️ Applications of BH1750 Light Sensor Module:

• 🌞 Smart Lighting Systems – Automatically adjust lights based on ambient brightness

• 🌿 Greenhouse & Plant Monitoring – Ensure optimal light for plant growth

• 🔋 Solar Tracking Devices – Align panels for maximum efficiency

• 📱 Smartphones & Wearables – Manage display brightness

• 🏠 Home Automation & IoT – Trigger events based on room lighting

• 📊 Weather Stations & Environmental Sensing

🎓 Perfect for STEM Learning and Education:

ElectronixBay supports educators by providing sensor modules like the BH1750 Light Sensor to enhance student projects in STEM labs. Its real-time lux readings help students visualize and understand how sensors interact with the physical environment, making it ideal for coursework involving environmental sensing or IoT development.

📦 What’s in the Box?

• 1x BH1750 Light Sensor Module

• 4x Male Header Pins (unsoldered)

• 1x Quick Start Guide (available digitally via ElectronixBay)

🤝 Why Buy from ElectronixBay?

At ElectronixBay, we offer genuine, high-quality components with full technical support for educational and commercial projects. Our BH1750 sensor modules are tested for reliability, and we provide comprehensive guides and Arduino example codes to get you started quickly.