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The Intel Galileo Gen 2 board provides the following resolution for the analog to digital converter:
32 bits.
64 bits.
12 bits.
The analog pins allow us to detect a maximum of:
4,096 different values, with values ranging from 0 to 4095 (inclusive).
16,384 different values, with values ranging from 0 to 16,383 (inclusive).
256 different values, with values ranging from 0 to 255 (inclusive).
We can configure the number of bits we want to use as the resolution by calling the following method of an
mraa.Aio
instance:setADCResolution
.setBit
.setResolutionBits
.
A call to the
read
method for amraa.Aio
instance returns:A raw number of units based on the number of the resolution bits configured for the instance.
A voltage value automatically converted from the raw number of units.
A resistance value measured in Ohms (Ω).
We can use analog pins to read:
Resistance values.
Current values.
Voltage values.