setup()
Description
The setup() function is called when a sketch starts. Use it to initialize variables, pin modes, start using libraries, etc. The setup() function will only run once, after each powerup or reset of the Arduino board.
Example Code
int buttonPin = 3;
void setup() {
// put your setup code here, to executed once:
Serial.begin(9600);
pinMode(buttonPin, INPUT);
Serial.println("This is setup code");
}
void loop() {
// ...
}
The output on Serial Monitor:
8
Serial.println("Hello World!");
Message (Enter to send message to 'Arduino Uno' on 'COM15')
New Line
9600 baud
This is setup code
See Also
- Language : loop()
- Tutorial : Arduino - Code Structure
※ ARDUINO BUY RECOMMENDATION
| Arduino UNO R3 | |
| Arduino Starter Kit |
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