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Macworld contributor Brian Jepson isn't content with just connecting external drives, mice, scanners, and printers to his Mac—he wants to control custom hardware. He explains how to do just that with a microcontroller. Jepson writes: To show you what's possible with microcontrollers and the Mac, I came up with a demonstration project that I call BreakTimer. This system enables your Mac to detect whether you're sitting in your chair and, if you've been sitting too long, to tell you it's time to get up and take a break. Jepson uses the Arduino microcontroller board, which plays nice with the Mac and comes with software that lets you program it. Hit the link to see how he hooked up a seat sensor and the microcontroller to his Mac to issue break reminders.read more »
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Wired's How-To Wiki demonstrates how to exploit the iPhone's unusual shutter to take distorted photographs. The trick? Just twist your camera as you're taking a picture. The reason? The iPhone uses a CMOS sensor, which more or less "wipes" the shutter across the sensor like a scanner rather than the circular aperture of a traditional camera. The iPhone's CMOS scanner seems to be a bit slower than, say, the CMOS sensor on your Canon camera. Therefore, as the camera is recording the image, any changes over that small but significant amount of time are recorded. Taking a psychedelic photo is actually just as easy as it sounds (works better in bright sunlight), but read on for a quick video demonstration.
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DIY web site Instructables demonstrates how to replace a dead battery in a Nike+ iPod receiver in just a few minutes for under $5. When I highlighted the best tech tools to get in shape, I sang the praises of the Nike+ iPod sport kit. But Apple says a whole new sensor is required when the battery dies in the $30 device, so the 10 minutes and $4 battery required for this little DIY seems worth the effort if and when your battery takes the long sleep. Replace battery in Nike+ receiver for under $5 [Instructables via read more »
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Both Apple and Nordic Semiconductor are now on the Bluetooth group’s
SIG board of directors. They will hold that position for two years,
starting on July 1, 2011, and they will be joining Intel, Motorola,
Lenovo, Nokia, Microsoft, Ericsson AB, and Toshiba on the Bluetooth SIG
board.
The main focus of the group is to drive Bluetooth expansion into
platform and sensor markets. Many people in the press are now
speculating that the move could mean that more iOS and Mac specific
Bluetooth devices could be on the horizon.
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