Breakout mit dem optischen VCNL4000 Entfernungsmesser, dieser ist für Distanzen bis 200mm geeignet. Für größere Entfernungen empfehlen wir die Sharp IR Sensoren.
The VCNL4000 sensor is a nice way to add a small-distance proximity
sensor to your microcontroller project. For longer distances (in the
range of cm, you can use a SHARP IR distance sensor
but those are only good if the object is over 10 cm away. The VCNL4000
is designed for much shorter distances, no more than 200mm (about 7.5")
and under our experimentation we found it worked best at distances of
about 10-150mm. It would be good for say detecting when a hand moved
nearby, or before a robot smacks into a wall. The sensor also has an
ambient light sensor built in.
This sensor is easy to use with any microcontroller that has i2c
capability. It is 5 volt compliant so you can use it with 3.3V or 5V
logic with no risk of damage. There is an onboard 3.3V ultra low dropout
regulator so you can power it with 3.3 to 5.0V. However, if you can
give it 5.0V that is ideal since the VIN voltage powers the IR LED and
the higher the voltage you can give it, the more powerful it is.
We have working example
code for this breakout, in the form of an Arduino sketch. It is easily
adaptable to any microcontroller, check out the github repository to
PCB dimensions: 23mm x 23mm (0.9" x 0.9")
VCNL4000 App Note
VCNL4000 Product sheet