Adafruit VCNL4040 Shield

Overview

The Adafruit VCNL4040 Proximity and Lux Sensor Shield features a Vishay VCNL4040 Proximity and Lux Sensor and two STEMMA QT connectors.

Adafruit VCNL4040 Shield (Credit: Adafruit)

Requirements

This shield can be used with boards which provide an I2C connector, for example STEMMA QT or Qwiic connectors. The target board must define a zephyr_i2c node label. See Shields for more details.

Pin Assignments

Shield Pin	Function
SDA	VCNL4040 I2C SDA
SCL	VCNL4040 I2C SCL
INT	VCNL4040 interrupt out

In order to use interrupts you need to connect a separate wire from the shield to a GPIO pin on your microcontroller board. See vishay,vcnl4040 for documentation on how to adjust the devicetree file.

Programming

Set --shield adafruit_vcnl4040 when you invoke west build. For example when running the VCNL4040 Proximity and Ambient Light Sensor proximity and light sample:

# From the root of the zephyr repository
west build -b adafruit_qt_py_rp2040 --shield adafruit_vcnl4040 samples/sensor/vcnl4040/