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Add ATmega32U4 documentation to analogReference() reference page #621

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Jun 12, 2019
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Add ATmega32U4 documentation to analogReference() reference page #621

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4 changes: 2 additions & 2 deletions Language/Functions/Analog IO/analogReference.adoc
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Expand Up @@ -19,10 +19,10 @@ subCategories: [ "Analog I/O" ]
=== Description
Configures the reference voltage used for analog input (i.e. the value used as the top of the input range). The options are:

Arduino AVR Boards (Uno, Mega, etc.)
Arduino AVR Boards (Uno, Mega, Leonardo, etc.)

* DEFAULT: the default analog reference of 5 volts (on 5V Arduino boards) or 3.3 volts (on 3.3V Arduino boards)
* INTERNAL: an built-in reference, equal to 1.1 volts on the ATmega168 or ATmega328P and 2.56 volts on the ATmega8 (not available on the Arduino Mega)
* INTERNAL: an built-in reference, equal to 1.1 volts on the ATmega168 or ATmega328P and 2.56 volts on the ATmega32U4 and ATmega8 (not available on the Arduino Mega)
* INTERNAL1V1: a built-in 1.1V reference (Arduino Mega only)
* INTERNAL2V56: a built-in 2.56V reference (Arduino Mega only)
* EXTERNAL: the voltage applied to the AREF pin (0 to 5V only) is used as the reference.
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