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Update adc.rst (#1502)

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Earle F. Philhower, III 2023-06-05 02:15:09 -07:00 committed by GitHub
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@ -12,7 +12,7 @@ need to be periodically sampled to be read by applications, easily, such as:
* Light dependent resistors (LDR), etc.
Up to 4 analog samples can be recorded by the hardware (``A0`` ... ``A4``), and all
Up to 4 analog samples can be recorded by the hardware (``A0`` ... ``A3``), and all
recording is done at 16-bit levels (but be aware that the ADC in the Pico will only
ever return values between 0...4095).
@ -29,7 +29,7 @@ ADC Input API
ADCInput(pin0 [, pin1, pin2, pin3])
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Creates an ADC input object which will record the pins specified in the code.
Only pins ``A0`` ... ``A4`` can be used, and they must be specified in increasing
Only pins ``A0`` ... ``A3`` can be used, and they must be specified in increasing
order (i.e. ``ADCInput(A0, A1);`` is valid, but ``ADCInput(A1, A0)`` is not.
bool setBuffers(size_t buffers, size_t bufferWords)