 It's the VCNL4040. It's a proximity and luxe sensor in stem-a-qt format. If you look here at the display, when I get my finger a little closer, I've got my little smiley face winking there. This little sensor does a pretty great job tracking whether you've kind of added that little fleshy mass of my eyelid coming down. I'm gonna just use my blink control. I'm gonna use that to trigger the synth. My product pick of the week this week, it is the VCNL4040. It is a proximity and light sensor, and I'm gonna go ahead and place that on my stem-a-qt board of awesomeness.