Println

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println()

Description

Prints data to the serial port as human-readable ASCII text followed by a carriage return character (ASCII 13, or '\r') and a newline character (ASCII 10, or '\n'). This command takes the same forms as Serial.print().

Syntax

Serial.println(val)
Serial.println(val, format)

Parameters

val: the value to print - any data type

format: specifies the number base (for integral data types) or number of decimal places (for floating point types)

Returns

size_t (long): println() returns the number of bytes written, though reading that number is optional

Example:

/*
Analog input reads an Analog input on Analog in 0, prints the value out. created 24 March 2006
by Tom Igoe
*/ int AnalogValue = 0 ; // variable to hold the Analog value void setup ( ) {
// open the serial port at 9600 bps:
Serial.begin ( 9600 ) ;
} void loop ( ) {
// read the Analog input on pin 0:
AnalogValue = AnalogRead ( 0 ) ; // print it out in many formats:
Serial.println (AnalogValue) ; // print as an ASCII-encoded decimal
Serial.println (AnalogValue, DEC ) ; // print as an ASCII-encoded decimal
Serial.println (AnalogValue, HEX ) ; // print as an ASCII-encoded hexadecimal
Serial.println (AnalogValue, OCT ) ; // print as an ASCII-encoded octal
Serial.println (AnalogValue, BIN ) ; // print as an ASCII-encoded binary // delay 10 milliseconds before the next reading:
delay ( 10 ) ;
}