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標題: Arduino數字信號檢測 [打印本頁]

作者: Jo_990624 時間: 2018-6-13 10:04
標題: Arduino數字信號檢測
int in_1 = 2;  //定義引腳為D2
int in_2 = 4;  //定義引腳為D4

int LED_G = 12;
int LED_R = 13;
int beep = 8;
int beep_en = 1;
int IO_x = 0;

int T = 1500;  //Period of the input signal (microsecond)

unsigned long duration_H;  //定義duration變量為無符號長整數型變量
unsigned long duration_L;  //定義duration變量為無符號長整數型變量
boolean value_1;
boolean value_2;

void setup()
{
  //Serial.begin(9600);  //串口波特率為9600
  pinMode(in_1, INPUT); //設置引腳為輸入模式
  pinMode(in_2, INPUT); //設置引腳為輸入模式
  pinMode(LED_G,OUTPUT);
  pinMode(LED_R,OUTPUT);
  pinMode(beep,OUTPUT);
}

void loop()
{
  digitalWrite(LED_R,HIGH);
  digitalWrite(LED_G,LOW);
  digitalWrite(beep,LOW);

  while(1)
  {
//initiate
   value_1=digitalRead(in_1);//讀取電壓值
   value_2=digitalRead(in_2);//讀取電壓值
if(value_1== HIGH) //IO_1
{
   IO_x = 1;
   if(beep_en > 0)    //enable beep
   {

      digitalWrite(LED_R,LOW);
      digitalWrite(LED_G,HIGH);
      digitalWrite(beep,HIGH);
      delay(500);
      beep_en = 0;
      digitalWrite(beep,LOW);

   }
   else
   {
      digitalWrite(LED_R,LOW);
      digitalWrite(LED_G,HIGH);
      digitalWrite(beep,LOW);
   }
}

else if(value_2==HIGH)
{
   IO_x= 0;
   digitalWrite(LED_R,LOW);
   digitalWrite(LED_G,HIGH);
         while(1)
      {
      digitalWrite(LED_G,HIGH);
      digitalWrite(LED_R,LOW);
      duration_H = pulseIn(in_2, HIGH,T);
      if(duration_H <1)  break;
      }
}
   else if (IO_x>0)       //function 1
{
      digitalWrite(LED_R,LOW);
      digitalWrite(LED_G,HIGH);
      digitalWrite(beep,LOW);

}
else                      //function 2 and start
{
   //does not work
   digitalWrite(LED_G,LOW);
   digitalWrite(LED_R,HIGH);
   digitalWrite(beep,LOW);
}
  }
}

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