I’m not really sure why, but proximity sensors are some of my favorite things in the sensor world. Maybe because there are so many of them? Who knows. Whatever the reason, the VCNL4000 is another proximity sensor that caught my eye, so I picked one up from Sparkfun on this handy breakout board. The VCNL4000 looks like it is a single piece of silicon, but it really just is an infrared transmitter and receive ...