Turn your i Phone or i Pad into the hub of a distributed sensor network with the help of an Arduino microcontroller. With this concise guide, youll learn how to connect an external sensor to an i OS device and have them talk to each other through Arduino. Youll also build an i OS application that will parse the sensor values it receives and plot the resulting measurements, all in real-time.i OS processes data from its own onboard sensors, and now you can extend its reach with this simple, low-cost project. If you’re an Objective-C programmer who likes to experiment, this book explains the basics of Arduino and other hardware components you needand lets you have fun in the process.Learn how to connect the Arduino platform to any i OS device Build a simple application to control your Arduino directly from an i Pad Gather measurements from an ultrasonic range finder and display them on your i Phone Connect an i Phone, i Pad, or i Pod Touch to an XBee radio network Explore other methods for connecting external sensors to i OS, including Ethernet and the MIDI protocol
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