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Adafruit VCNL4200 Long Distance IR Proximity and Light Sensor - I2C Interface, STEMMA QT

₹1,119.00 (Inclusive of all taxes)
Out of Stock

The Adafruit VCNL4200 is a dual-function I2C sensor module integrating long-range IR proximity detection (up to 1.5m) and a high-dynamic-range ambient light sensor (0.003-1570 lux). It is STEMMA QT compatible for plug-and-play connectivity with Raspberry Pi, Arduino, and other 3.3V/5V microcontroller platforms.

Features

  • Dual-function sensor combining long-range IR proximity (up to 1.5m) and ambient light sensing (0.003-1570 lux).
  • I2C digital interface with STEMMA QT connectors for solderless prototyping and system integration.
  • Intelligent background light cancellation and red glow immunity for stable proximity readings.
  • Fully configurable sensitivity via adjustable IR LED power, duty cycle, and integration time.
  • Programmable interrupt outputs for both proximity and light sensing thresholds.

Out of stock

Description

The VCNL4200 sensor module integrates a high-power infrared LED and a dedicated photodiode for proximity sensing, coupled with a separate ambient light sensor. Its advanced signal processing includes background light cancellation algorithms to minimize false triggers from ambient IR sources, ensuring reliable object detection at distances up to 1.5 meters. The light sensor offers four selectable full-scale ranges for optimal resolution across various lighting conditions.

Designed for easy integration, the module communicates via a standard I2C interface and includes STEMMA QT connectors for rapid, solder-free connections to development boards and data acquisition systems. Its low-power operation and configurable measurement modes make it suitable for battery-powered applications in robotics, automation, and interactive systems.

Key Features

  • Integrated long-distance IR proximity and ambient light sensor in a single compact module.
  • High-performance proximity sensing up to 1.5 meters with intelligent ambient light suppression.
  • Wide-range light sensor with configurable full-scale lux ranges (197, 393, 786, 1573 lux).
  • Fully programmable via I2C: adjust IR LED current, duty cycle, and integration time.
  • Dedicated interrupt pin with configurable thresholds for proximity and light events.
  • STEMMA QT / Qwiic compatible connectors enable plug-and-play prototyping.
  • Optimized 3.3V/5V logic compatibility for use with Arduino, Raspberry Pi, and ESP32.
  • Robust construction with onboard signal conditioning for stable, repeatable measurements.

Applications

  • Robotics obstacle avoidance and presence detection systems.
  • Interactive displays and touchless control interfaces.
  • Automated lighting control and daylight harvesting in smart buildings.
  • Proximity-activated security systems and motion-triggered devices.
  • Battery-powered IoT devices requiring low-power ambient sensing.

Technical Specifications

Item TypeProximity and Light Sensor Module
Model NumberVCNL4200
InterfaceI2C
Proximity Detection RangeUp to 1.5 meters
Ambient Light Sensing Range0.003 to 1570 lux
Light Sensor Full-Scale Ranges197, 393, 786, 1573 lux (selectable)
Communication ProtocolI2C
Connector CompatibilitySTEMMA QT / Qwiic
Logic Voltage3.3V / 5V compatible
Key FeaturesAdjustable IR LED power, programmable interrupts, background light cancellation

Frequently Asked Questions

What is the maximum detection range of the VCNL4200's proximity sensor?

The VCNL4200's IR proximity sensor can detect objects up to a maximum distance of approximately 1.5 meters under optimal conditions. The actual range can be influenced by object reflectivity, ambient IR light, and the configured IR LED current and duty cycle settings.

How do I connect and communicate with this sensor?

The module uses a standard I2C interface for communication. You can connect it directly to microcontroller I2C pins (SDA, SCL). For rapid prototyping, the onboard STEMMA QT connectors allow plug-and-play connection to compatible development boards like those from Adafruit, SparkFun, and Seeed Studio Studio without soldering.

Can I adjust the sensitivity of the proximity and light sensors?

Yes, both sensors are fully configurable via I2C commands. For proximity, you can adjust the IR LED current (from 10mA to 200mA) and the measurement duty cycle. For the light sensor, you can select from four different full-scale measurement ranges to optimize resolution for your specific lighting environment.

Does the sensor work with both 3.3V and 5V logic systems?

Yes, the VCNL4200 module is designed to be compatible with both 3.3V and 5V logic levels. The onboard circuitry handles level translation, allowing safe and direct connection to popular platforms like Arduino (5V), Raspberry Pi (3.3V), ESP32, and others.

Package Includes

  • 1 x Adafruit VCNL4200 Long Distance IR Proximity and Light Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 13 × 7 × 2 cm