Over at the "funwithdccircuits" blog the founder had the problem of being quite enthused with a pinball game on their Nexus 7 Android tablet, however they experienced thumb cramp from playing too long. Instead of taking a break they created an Arduino-powered compromise that allows for extended gameplay. They simply organised some large, arcade-style buttons and created their own input system which transmits the button presses via Bluetooth back to the Android tablet. A simple and smart solution - for example:
A great way of reducing the chance of repetitive-stress injury and enjoying pinball. Check out the project page for more information. And for more, we're on twitter and Google+, so follow us for news and product updates as well.