The sensor forms an image and OpenCV detects the actual touch configuration. It appears you can use the raw data from the Arduino, too, but it might be a little harder.

Having easily parsed code reduces your cognitive load and makes solving problems easier. To try and help with this, [PTS93] developed the Stator library to make certain common tasks simpler to read.

Kano’s Motion Sensor Kit is a USB-pluggable sensor that detects direction and distance with infrared. You hook it up to Kano Code to make interactive games, musical instruments, or whatever else ...