Arduino Programming Language: Setup

Name

Setup

Description

Function called once when the program begins running. Used to define initial enviroment properties such as a pin mode (INPUT or OUTPUT), starting the serial port etc. before the loop() begins executing. Variables declared within setup() are not accessible within loop().

Syntax

void setup() {
statements
}

Parameters

  • statements
  • any valid statements

Returns

none 

Usage

Application

Examples

void setup() {
pinMode(8, OUTPUT);
Serial.begin(9600);
}

void loop() {
Serial.print('.');
delay(1000);
}

Related Functions


Based on the reference originally written by Arduino Community,  wiring.org.co and  arduino.cc