The Force Petal is an air cannon controlled by your brain 'attention' and 'meditation'.

We hacked a couple of Force Trainers to send their data to an Arduino Mega, which in turn opens the valve of our air cannon when a player 'wins'.

More information here:
hackerspace-adelaide.org.au/blog/2010/12/15/force-petal-mind-game/

And first test videos and photos here:
hackerspace-adelaide.org.au/blog/2010/12/09/100psi-air-cannon-test/

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