Robotics Monday: NXT Trumpet with dPressure Sensor

Name of Model: NXT Trumpet

Created by: linmix

Found at: http://www.youtube.com/watch?v=Mg2Oi7MXRLw&feature=player_embedded

Details: This NXT-based trumpet uses a Dexter Industries dPressure pressure sensor with one of the older style pneumatic pumps (I believe one of the earliest ones, actually) to create a mouthpiece that responds to how far it is pushed in. That plus three touch sensors (and what I'd imagine to be a considerable amount of programming) allows you to actually play music on this. A similar design (that isn't well documented online anywhere, but is a staple of the builder's appearances at LEGO conventions) was built by Steve Hassenplug. That one measured rotation for the mouthpiece input.