OPT3001 I2C Ambient Light Sensor Module – Precision Single-Chip Design

The OPT3001 Light Sensor Module is a high-accuracy ambient light sensor calibrated to match the spectral response of the human eye. Communicating via the I2C / IIC interface, this compact single-chip module is ideal for makers, engineers, and electronics enthusiasts who need reliable lux measurements in their embedded projects, smart home devices, display brightness controllers, and more.

Key Features

Human Eye Spectral Match: The OPT3001 is tuned to mirror the sensitivity curve of the human eye, delivering natural and accurate ambient light readings across a wide dynamic range.
I2C / IIC Interface: Simple two-wire communication makes integration with microcontrollers (Arduino, Raspberry Pi, STM32, etc.) fast and straightforward.
Single-Chip Simplicity: Compact polymer-based module with minimal external components required — ideal for space-constrained PCB designs.
Wide Lux Range: Capable of measuring from near-dark environments to full sunlight, making it highly versatile across indoor and outdoor applications.
Low Power Consumption: Optimized for battery-powered and energy-sensitive embedded systems.
Customizable Quantities: Available in 1pc, 2pcs, or 3pcs to suit prototyping or small production runs.

Specifications

Sensor IC	OPT3001
Communication Interface	I2C / IIC
Module Material	Polymer
Color	Purple
Customizable	Yes
Available Quantities	1pc, 2pcs, 3pcs

Ideal Applications

Automatic screen brightness adjustment
Smart home lighting automation
Wearable device ambient sensing
Industrial light monitoring systems
Arduino / Raspberry Pi maker projects
Energy-harvesting and low-power IoT devices

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Frequently Asked Questions

Q: What does the OPT3001 light sensor module measure?

A: The OPT3001 module measures ambient illuminance (lux) across a wide dynamic range. Its spectral response is calibrated to closely match the sensitivity of the human eye, making it ideal for applications that require natural, accurate light readings — such as display brightness control, smart lighting, and environmental monitoring in embedded systems.

Q: Is the OPT3001 module compatible with Arduino and Raspberry Pi?

A: Yes. The OPT3001 communicates over the I2C / IIC two-wire interface, which is natively supported by Arduino, Raspberry Pi, STM32, ESP32, and most modern microcontroller platforms. Integration is straightforward, and libraries are widely available in the maker community.

Q: How many modules can I order at once?

A: The OPT3001 module is available in quantities of 1pc, 2pcs, or 3pcs, making it convenient for individual prototyping as well as small batch development runs. Select your preferred quantity from the options above.

Q: What is the module made of?

A: The module board is constructed from polymer-based materials, keeping it lightweight and durable for integration into embedded electronics and custom enclosures.

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.