Friday, April 25, 2008

Updated Schematic

Here is a new revision to the schematic. Had to add in a 1-Wire analog to digital converter. When I made the initial design I thought the BS2px had an ADC built in. The ADC converts the analog voltage output of the barometric sensor to an 8-bit digital value. I chose the DS2450 mainly for the I2C interface. The DS18B20 temperature sensors also use the 1-Wire interface which means the DS2450 and the DS18B20's can use the same bus. I also chose the DS2450 because it has four inputs to allow future addons for experiments or extra sensors.


I also rearranged the design a bit. I didn't fully read the docs on the BS2px and certain pins will only work for certain things such as synch and asynch serial, 1-wire, and I2C protocols.





Also, http://www.procknation.com/ is starting to come online. I finally found my old copy of Dreamweaver MX. As I get time I will be adding page content. But don't expect to much. I follow the Google model of web page building, less is better. I don't have a bunch of graphics or flash crap. Just the content.

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