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Kód: Vybrat vše

/*
  Mereni delky pulzu pomoci millis();
*/

byte casuji = 0;
byte cislomereni = 0;
unsigned long start, finished, over; // ulozeni casu START,STOP
unsigned long elapsed[10];           // vysledny napereny cas - pole pro 10 mereni

void setup()
{
  Serial.begin(9600);
  pinMode(2, INPUT); // start/stop 
}



void loop()
{
  if (digitalRead(2)==HIGH  && casuji==0)   //START
  {
    start=millis();
    delay(200); // potlaceni zakmitu
    Serial.println("Start...");
    casuji = 1;
  }
  if (digitalRead(2)==LOW && casuji==1)   //STOP
  {
    finished=millis();
    delay(200); // potlaceni zakmitu
    Serial.println("Stop...");
    casuji = 0;
    elapsed[cislomereni]=finished-start;
    Serial.print("Zmereno c.");
    Serial.println(cislomereni + 1);
    cislomereni++;
    if(cislomereni==9) cislomereni=0;
  }

  SerialComm();  //vycteni dat ze seriove linky
}

void OdeslatVysledky()
{
  for(int x=0; x<=9; x++) {
     float h,m,s,ms;
     elapsed[x];
     h=int(elapsed[x]/3600000);
     over=elapsed[x]%3600000;
     m=int(over/60000);
     over=over%60000;
     s=int(over/1000);
     ms=over%1000;
     Serial.print("Zaznam ");
     Serial.print(x+1);
     Serial.print("   Raw time: ");
     Serial.print(elapsed[x]);
     Serial.print("   Time: ");
     Serial.print(h,0);
     Serial.print("h ");
     Serial.print(m,0);
     Serial.print("m ");
     Serial.print(s,0);
     Serial.print("s ");
     Serial.print(ms,0);
     Serial.println("ms");
     
   }
}
  

//serial communication with PC
void SerialComm() {
  //first char - type of data
  //second and third char - data
  //there are used only "printable" characters

  if (Serial.available() > 0) {
    byte receivedCommand;
    receivedCommand = Serial.read();  //read first char

    delay(10);  //wait for other char

    byte receivedDataTens;
    receivedDataTens = Serial.read();
    receivedDataTens -= 48; // ASCII code for "0" is 48

    byte receivedDataOnes;
    receivedDataOnes = Serial.read();
    receivedDataOnes -= 48; // ASCII code for "0" is 48

    byte receivedData;
    receivedData = (receivedDataTens * 10) + receivedDataOnes;
    if (receivedData > 99) {
      //maximal value is 99
      receivedData = 0; //value is out of range
    }

    switch (receivedCommand) {
    case 112:
      //112 = p
      if (receivedData > 1) {
        receivedData = 1;
      }
      OdeslatVysledky();
      break;
   }

    //flush serial data
    Serial.flush();

   }
}