Build a presence detector with Spark Core

Want to know if someone entered your room? Sometimes a “Keep out” sign is not enough to keep out your siblings, so here we built a simple presence detector that lets you know if someone enters your room and how many times it happened.

As a cherry on top, we added an LED Matrix that displays a happy face when the room is quiet, and the opposite when it’s not!

happy-face-led

 

Continue reading “Build a presence detector with Spark Core”