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On the Medallia blog, Erling Ellingsen has been monkeying around with the accelerometer on the iPhone, some applications of which he demos in the above video. He writes:

As it turns out, the iPhone has a built-in LIS302DL, a tiny 3-axis accelerometer. While some have attempted to use it from within the Safari browser (the Tilt game detects changes to the width of the browser page; it is basically used as a 1-bit input device), its potential is still somewhat untapped. After a rather lengthy bout of reverse-engineering (I had barely touched ARM assembly before this), I finally figured out how to access the raw data from the accelerometer itself, as can be seen in the video above. Source code is posted here. (update: yes, it is possible to access the accelerometer directly through UIKit without this hack — however, you’ll be locked to the default sample rate, which is too slow for some of the fun stuff)

Fun with the iPhone accelerometer – [via] Link

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of a dozen books on technology, DIY, and geek culture, including the first book about the web (Mosaic Quick Tour) and the Absolute Beginner’s Guide to Building Robots. He is currently working on a best-of collection of his writing, called Borg Like Me.


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