Svenska ElektronikForumet

Kod: Markera allt

void setup()
{
  pinMode(3, OUTPUT); //pin 3 as output
  pinMode(2, OUTPUT); // pin 2 as output
  Serial.begin(9600); // open serial
}

  int relayVal1 = 0; //state variable
  int relayVal2 = 0; //state variable

void loop()
{
  int cmd;
  
  while (Serial.available() > 0)
  {
    cmd = Serial.read(); //read serial, put into variable

    switch (cmd) // switch case that reads from variable cmd
    {
    case 'H':      
      relayVal1 ^= 1; // xor current value with 1 (causes value to toggle)
    
    
         
    case 'J':
      relayVal2 ^= 1; // xor current value with 1 (causes value to toggle)

    
    
    if (relayVal1)  // reads variable, controls digital pin accordingly
      digitalWrite(3, HIGH);
    else
      digitalWrite(3, LOW);
    
 
      if (relayVal2) // reads variable, controls digital pin accordingly
      digitalWrite(2, HIGH);
    else
      digitalWrite(2, LOW);
  }
 }
}

Kod: Markera allt

    {
    case 'H':     
      relayVal1 ^= 1; // xor current value with 1 (causes value to toggle)
      break; // ESSENTIELL!!!   
    case whatever:
      break;

Kod: Markera allt

void setup()
{
  pinMode(3, OUTPUT); //pin 3 as output
  pinMode(2, OUTPUT); // pin 2 as output
  Serial.begin(9600); // open serial
}

  int relayVal1 = 0; //state variable
  int relayVal2 = 0; //state variable

void loop()
{
  int cmd;
  
  while (Serial.available() > 0)
  {
    cmd = Serial.read(); //read serial, put into variable



    switch (cmd) // switch case that reads from variable cmd
    {
    case 'H':      
    relay1(); // go to void
    break;
         
    case 'J':
    relay2(); // go to void
    break;
    }
  }
 }



   void relay1() {
   relayVal1 ^= 1;  // xor current value with 1 (causes value to toggle)
     
    if (relayVal1)  // reads variable, controls digital pin accordingly
      digitalWrite(3, HIGH);
    else
      digitalWrite(3, LOW);
    }
 
   void relay2() {
   relayVal2 ^= 1;  // xor current value with 1 (causes value to toggle)
   
      if (relayVal2) // reads variable, controls digital pin accordingly
      digitalWrite(2, HIGH);
    else
      digitalWrite(2, LOW);
 }

Kod: Markera allt

switch(Select)
  {
  case 0:
    // Do something if Select == 0
    break; // Här "hopps" det ur switch'en
  case 1:
  case 2:
  case 10:
    // Do something if Select == 1, 2 or 10
    break; // Här "hopps" det ur switch'en
  case 3:
    // Do something if Select == 3
    // OBS: ingen "break;" här!
  case 4:
    // Do this if Select == 3 or 4
    break; // Här "hopps" det ur switch'en
  default:
    // här kör koden för alla andra värden av Select än dom som det finns case för
    break;
  }

Kod: Markera allt

int returnFive() {
  // den här metoden svarar med siffran fem
  return 5;
}

void returnNothing() {
  // Den här metoden svarar inte med något
}

Kod: Markera allt

if (someValue == 1) {
  // Om someValue är lika med 1
} else {
  // Om someValue är allt annat än 1
}