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Interfacing an AVR with an ubiquitous Ethernet network allows for a host of novel applications with embedded communications. The Microchip ENC28J60 makes the tedious job of building a network interface simple, using the 'Serial Peripheral Interface' (SPI) and requiring only 4 wires.
I have spent the morning trying to draw a wireframe sphere, using OpenGL but without the standard glu_ and glut_ extensions. I now have a sphere with a very pleasant spiral pattern on it – just a shame watching it rotate makes my head hurt!
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