Reading Analog (ADC) Values on a BeagleBone Black


Hipster Circuits shows us how to read analog values on a BeagleBone Black.

The Analog to Digital Converter (ADC) on the BeagleBone is both a Touch Screen Controller (TSC) and a general purpose ADC. Depending on how many of the lines are reserved for the TSC (4, 5, or 8), the remaining lines can be used for reading analog values. One of the lines is connected to the power Management Integrated Circuit (PMIC, TPS65217) of the white Bone,  in order to sense the power used by the board. This does not appear to be the case for the new BeagleBone Black.


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