Adafruit VCNL4200 Long Distance IR Proximity and Light Sensor - STEMMA QT / Qwiic

The Adafruit VCNL4200 is a powerful two-in-one sensor combining a long distance infrared proximity sensor and an ambient light sensor on a compact breakout board. It can measure proximity up to 1.5 meters (approximately 59 inches), perfect for robotics, motion detection, and other distance sensing applications. The built-in ambient light sensor measures light intensities from 0.003 to 1570 lux, providing accurate light level detection alongside distance measurement.

This sensor breakout is compatible with 3.3V and 5V logic systems and uses an I2C interface for simple two-wire connection, along with STEMMA QT / Qwiic connectors for easy plug-and-play integration without soldering. Adjustable parameters include integration times, IR LED power levels, duty cycles, multi-pulse, and sunlight immunity, allowing customization to suit various environments and applications. It also features programmable interrupts for proximity and ambient light thresholds.

Key Features:

• Proximity sensing up to 1.5 meters (50-100cm typical reliable range)
• Ambient light sensing with range 0.003 to 1570 lux
• IR LED with immunity to red glow and intelligent background light cancellation
• Fluorescent light flicker immunity for ambient light sensor
• Programmable interrupt output for proximity and ambient light thresholds
• Compatible with 3.3V & 5V logic
• STEMMA QT / Qwiic connectors for easy plug-and-play
• I2C interface for simple two-wire communication

Technical Specifications:

• Dimensions: 25.6mm x 17.7mm x 4.8mm (1.0" x 0.7" x 0.2")
• Weight: 1.9g (0.1oz)
• Proximity function: 940nm IR LED, up to 1.5m distance, background light cancellation
• Ambient light function: spectrum close to human eye response, selectable detection range (197, 393, 786, 1573 lux), highest sensitivity 0.003 lux/step
• Adjustable integration time, LED power, duty cycle, multi-pulse settings, and sunlight immunity

This board is RoHS compliant ensuring environmental standards.