GY-30 BH1750FVI Light Intensity Sensor Module for Arduino/ESP
GY-30 BH1750FVI Digital Light Intensity Illumination Sensor Module
The GY-30 module features the BH1750FVI digital ambient light sensor, providing precise illuminance measurements in lux through I2C communication. It's used in automated lighting systems, display brightness control, and environmental monitoring. With 16-bit resolution, it detects light levels from 1 to 65535 lux.
Key Specifications
| Specification | Value |
|---|---|
| Sensor Chip | BH1750FVI |
| Operating Voltage | 3V to 5V DC |
| Interface | I2C (SDA, SCL) |
| Measurement Range | 1 – 65535 lux |
| Resolution | 1 lux (High-Resolution Mode) |
| I2C Address | 0x23 (0x5C with ADDR high) |
What You Can Build With This
- Automatic night lamp that turns on in darkness
- Display backlight auto-adjustment for OLED/LCD screens
- Plant light monitor for indoor gardens
- Security system light trigger
Compatibility
This module works with any microcontroller that has I2C, including Arduino Uno, Nano, ESP32, ESP8266, Raspberry Pi, and STM32. Operates at 3V or 5V logic. Suitable for both 3.3V and 5V systems.
Wiring Notes
Connect VCC to 3.3V or 5V, GND to ground, SDA to A4 (Arduino Uno) or I2C data pin, SCL to A5. No pull-up resistors needed if using 5V power. Keep sensor module away from direct sunlight for accurate readings.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino and ESP32?
Yes, it works with any I2C-capable board like Arduino, ESP32, and Raspberry Pi. Libraries are available for Arduino IDE and MicroPython.
What is the measurement unit?
It outputs illuminance in lux, a standard unit for light intensity.
Can it measure direct sunlight?
It can measure up to 65,535 lux, which covers typical daylight but not direct intense sunlight that may exceed this range.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items