Description
The VCNL4010 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 VCNL4010 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 5V-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.
New! As of Sept 23, 2015, we are now shipping this breakout with the updated VCNL4010 - the library has changed and the chip is slightly different in that it now supports interrupts. We also made the board a little more compact. However, the overall proximity functionality is identical.
Specifications:
- VCNL4010 Datasheet / App Note / Product Sheet
- EagleCAD PCB files on GitHub
- Fritzing library
- PCB dimensions: 18mm x 16.5mm (0.7" x 0.6")
- Thickness including tallest SMT components: ~3.15mm (0.125")
- Thickness of PCB: 1.75mm / 0.070"
- This board/chip uses I2C 7-bit address 0x13