Adafruit VCNL4040 Evaluation Board

Adafruit VCNL4040 Evaluation Board is designed to evaluate the features and functionality of the VCNL4040 proximity and lux sensor. The VCNL4040 sensor is a 2-in-1 device featuring a proximity sensor that works from 0mm to 200mm and a light sensor ranging from 0.0125lux to 6553lux. The VCNL4040 is placed on a breakout board with support circuitry that allows the board to be used with 5V (Arduino/ Metro328) or 3.3V (Feather/Raspberry Pi) logic levels. This proximity/lux sensor uses an I2C interface to seamlessly connect it up with two wires (plus power and ground). The sensor includes the SparkFun Qwiic compatible STEMMA QT connectors for the I2C bus.


  • VCNL4040 Proximity and Lux Sensor:
  • Two-in-one sensor:
    • Proximity sensor works from 0mm to 200mm
    • Light sensor has a range of 0.0125lux to 6553lux
  • I2C interface
  • SparkFun Qwiic compatible STEMMA QT connectors
  • Maximum range in lux for:
    • 80ms integration time is 6553.5lux
    • 640ms integration time is 819.2lux
  • Increase in integration time will increase sensitivity and resolution within the measurement range
  • Current and duty cycle of the IR LED can also be changed
  • 25.3mm x 17.8mm x 4.6mm product dimensions
  • RoHS compliant


Publicado: 2019-10-14 | Atualizado: 2023-06-06