We are planning to incoporate a bubble making machine into the oxygen tank in the back that is suppose to release soap bubbles from time to time. The bubbles are suppose to simulate CO2 and other waste gases that are being realeased.
One funny example that I just found – way after we had this idea! – is this:
For implementing our idea we already got a functioning bubble machine. Next goal is to get it running via Arduino. We experimented quite a bit with it. Once it´s running we´ll show you how we got it to work!