Building Linux images for ARM architectures

Want to try your hand at building a Linux package for an embedded device? [SnowBot] decided to give it a try and set out to build Ubuntu for a GumStix. The single-board computer will cost you about $150 to get started, plus a way to connect to the device’s serial port. But once you’ve got your hands on it there is a lot of power in a tiny package.

He’s using the RootStock package to assist in the build. This is a suite of tools that generates the root file system that can be loaded onto an SD card for use with the Gumstix. It’s not quite building from the ground up, but there’s already enough hoops to jump through that this package is a welcomed shortcut.

Already rolling your own Linux packages for embedded hardware? We want to hear about it.

Lucid dreaming

When we saw [merkz] use of an Arduino to produce lucid dreaming we were quite shocked. Unlike typical setups that just flash a light through sleep, his system monitors eye movement through electrodes and is able to send the data to a computer for graphing and analyzing.  The only problem being we couldn’t find a circuit diagram or code.

Not ones to be shot down so quickly, a Google revealed this thread on making ‘Dream Goggles’, which was really a Brain-Wave Machine based on the parallel port. Some modifications of an ECG collector’s electrodes using sound cards, and you could have your own lucid dreaming.

[Thanks Phil]

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