BH1750FVI Digital Ambient Light Sensor Module

The BH1750FVI Digital Light Sensor Module is a compact, high-precision ambient light sensing solution perfect for electronics enthusiasts, hobbyists, and developers. Using the widely supported I2C (IIC) interface, this module delivers accurate lux measurements straight to your microcontroller — no complex analog conversion required. Whether you're building a smart lighting controller, an automatic display brightness adjuster, or any light-responsive embedded project, this module delivers consistent and reliable illuminance readings.

Key Features

Chip: BH1750FVI — a proven 16-bit ambient light sensor IC
Interface: I2C (IIC) digital output — easy integration with Arduino, Raspberry Pi, ESP8266/ESP32, and more
Measurement Range: 1 – 65535 lx (lux), closely approximating human eye spectral response
Low Power Consumption: Ideal for battery-powered and portable applications
Built-in A/D Converter: Directly outputs digital lux values — no external ADC needed
Compact PCB Design: Easy to mount and integrate into your existing projects
Wide Supply Voltage: Compatible with 3.3V and 5V logic systems
Selectable I2C Address: Supports two address options for flexible multi-sensor setups

Specifications

Sensor IC: BH1750FVI
Communication Protocol: I2C / IIC
Operating Voltage: 3.0V – 5.0V
Illuminance Range: 1 – 65535 lx
Resolution: 1 lx
PCB Color: Blue

What's in the Box

1 × BH1750FVI Digital Light Sensor Module

Compatible With

Arduino Uno / Nano / Mega
Raspberry Pi (all models)
ESP8266 / ESP32 development boards
STM32 and other I2C-compatible microcontrollers

Great For

Automatic display and screen brightness control
Smart home lighting automation
Greenhouse and indoor plant light monitoring
Weather station builds
Robotics and IoT sensor arrays

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Frequently Asked Questions

Q: What is the BH1750FVI digital light sensor module used for?

A: The BH1750FVI digital light sensor module measures ambient light intensity (in lux) and outputs the reading digitally via I2C. It's widely used in projects requiring automatic brightness adjustment, light-activated triggers, plant growth monitoring, smart home automation, and other light-sensing applications with Arduino, Raspberry Pi, or ESP32 boards.

Q: Is the BH1750FVI module compatible with Arduino and Raspberry Pi?

A: Yes! The BH1750FVI module communicates via the I2C protocol, making it fully compatible with Arduino (Uno, Nano, Mega), Raspberry Pi, ESP8266, ESP32, and virtually any microcontroller that supports I2C communication. Libraries are freely available for Arduino IDE and Python.

Q: What voltage does the BH1750FVI sensor module operate at?

A: The BH1750FVI module supports a supply voltage range of 3.0V to 5.0V, making it compatible with both 3.3V and 5V microcontroller systems without the need for level shifters in most setups.

Q: How accurate is the BH1750FVI light sensor?

A: The BH1750FVI provides a 16-bit digital output with a measurement range of 1 to 65,535 lux and a resolution of 1 lx. Its spectral response closely matches the human eye, making it highly accurate for real-world ambient light measurement applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.