Mnpalmeira

It's an easy adjustment, you can either have separate targets that together have the shape of the chest or you can have just one target with the piezos and the LEDs attached to it. But in this last case you need to change the code to compare the values among the piezos so that you can tell which area was it.

Thanks :) Unfortunately I didn't know of the contests until you commented

Thanks :)

Thank you for your feedback. If you can and want, share what you build :)

Thanks, I didn't enter any contests because I'm very new here on Instructables so I haven't even heard of these contests xD