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  analogReference(type) Description Configures the reference voltage used for analog input (i.e. the value used as the top of the input range). The options are: 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 […]

  % (modulo) Description Calculates the remainder when one integer is divided by another. It is useful for keeping a variable within a particular range (e.g. the size of an array). Syntax result = dividend % divisor Parameters dividend: the number to be divided divisor: the number to divide by Returns the remainder Examples x […]