tecno4

Before you begin designing, you should know a bit more about the “piano keys” that will be part of this project. Each key will be a touch sensor constructed out of conductive thread. The touch sensor you built for the interactive monster required you to touch two conductive patches—the monster’s two paws. In this project, you’ll use a different kind of touch sensor called a capacitive sensor. With a capacitive sensor, you only need to touch one conductive patch.