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How-to: Use analog Inputs for Raspberry Pi Using the MCP3008 | by adafruit
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How-to: Use analog Inputs for Raspberry Pi Using the MCP3008

learn.adafruit.com/reading-a-analog-in-and-controlling-au...

 

Teaching the Raspberry Pi how to read analog inputs is easier than you think! The Pi does not include a hardware analog to digital converter, but a external ADC (such as the MCP3008) can be used along with some bit banged SPI code in python to read external analog devies. Here is a short list of some analog inputs that could be used with this setup.

 

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Taken on July 20, 2012