pinMode__ - jimaobian/DFRobotWikiCn GitHub Wiki

void pinMode (uint8_t pin, uint8_t mode)

设置引脚模式

配置引脚为输出或输出模式.

参数:

  • pin 引脚编号
  • mode: INPUT, OUTPUT, 或 INPUT_PULLUP.

例子:

int ledPin = 13;                 // LED connected to digital pin 13

void setup()
{
  pinMode(ledPin, OUTPUT);      // sets the digital pin as output
}

void loop()
{
  digitalWrite(ledPin, HIGH);   // sets the LED on
  delay(1000);                  // waits for a second
  digitalWrite(ledPin, LOW);    // sets the LED off
  delay(1000);                  // waits for a second
}

注解:

  • 模拟引脚也可以当作数字引脚使用, 编号为14(对应模拟引脚0)到19(对应模拟引脚5).
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