Linux Analog to Digital Converter

["aashram" <groups@xxxxxxxxxxx>]

It can be a little expensive to read analog signals, for example
temperature readings or light levels, into your computer. In this article
we will show you (1) how Linux can use a computer parallel port and a $10
integrated circuit to read 8 analog channels at 12 bit accuracy, and (2)
how we used this to build the Extreme Comfort System (ECS.).

http://digg.com/linux_unix/Linux_Analog_to_Digital_Converter


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