A single Arduino shield that can link with an Android device and provide a multitude of sensors and advanced functions? Yep  thats a thing now. The 1Sheeld, in fact. From developers Integreight, 1Sheeld blew its admittedly humble Kickstarter goal of $10k out of the water 8 times over, but is now available to all from Amazon for $55. The 1Sheeld isnt designed to replace the Arduino though it supplements it, giving your Arduino projects access to a full complement of smartphone sensor data, and far more besides.