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Mobile accelerometers and gyroscopes explained

By macslocum : 15 July 2010 - 04:58 AM
Every once in a while I make a point to marvel at the technology now at my fingertips. Otherwise, I won't appreciate the stuff. For example, pick up a modern mobile phone -- an iPhone or Android de...
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Seven Ways for a Developer to Shine on Windows 7

By adfm : 24 March 2010 - 04:00 PM
Are you curious about the newer developer tools available in Windows 7. In this excerpt from Kiriaty, Moroney, Goldshtein, and Fliess' Introducing Windows® 7 for Developers you'll learn about se...
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How to build an iPhone App that uses Geolocation

By Alasdair Allan : 07 December 2009 - 04:23 AM
The sample code (660KB) to accompany the screencast. Core Location is one of the great things about the iPhone and iPod touch platform, but until recently it was actually q...
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How to Build and Test an iPhone App that Uses the Accelerometer

By Alasdair Allan : 07 December 2009 - 04:13 AM
The sample code (646KB) to accompany the screencast. The iPhone's accelerometer measures the linear acceleration of the device so can report the roll and pitch, but not the ya...
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The pluses and minuses of the iPhone Camera

By blackbear : 17 November 2009 - 08:17 PM
In a recent interview with Jeffrey Powers regarding the iPhone sensor suite, he talked a bit about the iPhone camera and the difficulties that it can create for real time vision applications. In term...
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How the iPhone sensors work in concert to determine orientation

By blackbear : 17 November 2009 - 08:11 PM
In a recent interview with Alasdair Allan regarding the iPhone sensor suite, he talked a bit about how the various sensors have to be used together to figure out how the phone is oriented. "Basical...
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Did you know that the iPhone has a proximity sensor?

By blackbear : 17 November 2009 - 07:59 PM
In a recent interview with Alasdair Allan regarding the iPhone sensor suite, he shared some information about a little known sensor.The proximity sensor is an infrared diode. I think it's actua...
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How some of the technology inside the iPhone works

By jwikert3 : 30 October 2009 - 09:46 AM
Have you ever wondered how the iPhone's touch screen works, how the proximity sensor blanks the screen when you hold the iPhone to your face or how the tilt feature works? ComputerWorld does a ni...
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How to Make the Most of Metadata

By gavinbell : 29 October 2009 - 09:45 AM
Metadata creates connections between content on your site; it is in your interest to support it. For photography, there is the data held in EXIF (EXchangeable Image File) format, which is em...
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