Hacker News Reader

I really want to play around with sensors and create projects similar to this. I am fascinated with sensors.

Is this something that is possible with arduino or raspberry pi? Or is there something else I should look into?

You should be able to do it with a camera, and tensorflow and traing on images with gestures.

Leap Motion skd has something included to get a hand skeleton from the data, could be very useful for something like this.