millis()

[Time]

説明

Returns the number of milliseconds since the 86Duino board began running the current program. This number will overflow (go back to zero), after approximately 50 days.

媒介変数

None

戻り値

Number of milliseconds since the program started (unsigned long)

例

unsigned long time;
 
void setup(){
  Serial.begin(9600);
}
void loop(){
  Serial.print("Time: ");
  time = millis();
  //prints time since program started
  Serial.println(time);
  // wait a second so as not to send massive amounts of data
  delay(1000);
}

ヒント

Note that the parameter for millis is an unsigned long, errors may be generated if a programmer tries to do math with other datatypes such as ints.

参照

• [Language] micros()
• [Language] delay()
• [Language] delayMicroseconds()
• [Example] Tutorial: Blink Without Delay

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86Duinoリファレンスのテキストは、Arduinoリファレンスを改変したもので、Creative Commons Attribution-ShareAlike 3.0ライセンスに基づいてライセンスされています。リファレンス内のコードサンプルはパブリックドメインとして公開されています。