OPT3001 Ambient Light Sensor Module – Illuminance Meter for Arduino

Take precise light measurements in your electronics projects with the OPT3001 Ambient Light Sensor Module. Operating across a wide voltage range of 1.6V to 3.6V, this compact SMD-based module is engineered for accurate illuminance detection, making it an ideal choice for Arduino enthusiasts, hobbyists, and embedded systems developers alike.

Key Features

OPT3001 Sensor IC: High-accuracy ambient light sensing with a wide dynamic range, closely matching the human eye's spectral response
Wide Voltage Range: Compatible with 1.6V to 3.6V power supplies — perfect for 3.3V Arduino, ESP8266, ESP32, and similar microcontrollers
I²C Interface: Simple two-wire communication for easy integration into existing projects
SMD Design: Compact surface-mount form factor for space-efficient circuit board placement
Low Power Consumption: Ideal for battery-powered and low-energy IoT applications
Automatic Range Setting: Eliminates the need to manually configure measurement ranges
Rejection of IR & UV: Measures only visible light for highly accurate lux readings
Customizable: Module is customizable to suit specific project requirements

Specifications

Sensor IC: OPT3001
Operating Voltage: 1.6V – 3.6V
Communication Protocol: I²C
Includes: SMD module
Compatible With: Arduino, Raspberry Pi, ESP8266, ESP32, STM32, and more

What's in the Box?

1 × OPT3001 Ambient Light Sensor SMD Module

Perfect For

Smart lighting control systems
IoT sensors and home automation
Display brightness auto-adjustment
Environmental monitoring stations
Wearable electronics and portable devices

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Frequently Asked Questions

Q: What is the OPT3001 Ambient Light Sensor Module used for?

A: The OPT3001 Ambient Light Sensor Module is used to measure illuminance (lux levels) in electronics projects. It detects visible ambient light with high accuracy and communicates via I²C, making it popular for Arduino-based smart lighting, display brightness control, and IoT environmental monitoring applications.

Q: Is the OPT3001 module compatible with Arduino and other microcontrollers?

A: Yes! The OPT3001 module is compatible with a wide range of microcontrollers including Arduino, ESP8266, ESP32, Raspberry Pi, and STM32. Its standard I²C interface and 1.6V–3.6V operating range make it easy to integrate into most 3.3V and select 5V (with level shifting) development platforms.

Q: What does the SMD in the product description mean?

A: SMD stands for Surface-Mount Device. It refers to the compact electronic component mounting style used in this module. Each order includes one SMD-based OPT3001 sensor module, ready to solder onto a PCB or use with appropriate breakout connections in your project.

Q: Does the OPT3001 module require manual range configuration?

A: No. One of the standout features of the OPT3001 sensor is its automatic full-scale range setting. The sensor automatically selects the optimal measurement range, simplifying your code and ensuring consistently accurate lux readings without manual configuration.

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.