sorosport_olvasás_time

#define LED1 13
#define LED2 3

char* strToLower( char *str ) {
  int length = strlen( str );
  for ( int i = 0; i < length; i++ ) {
    str[i] = tolower( str[i] );   // toupper()
  }
  return str;
}

void setup()
{
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT );

  Serial.begin( 115200 );
}

char command[100];
byte commandLength = 0;

char commandHandler( char* command ) {
  if ( strncmp( command, "led1", 4 ) == 0 ) {

    char *ptr = strtok( command, " " );
    while( ( ptr = strtok( NULL, " " ) ) != NULL ) {
      if ( strcmp( ptr, "on" ) == 0 ) {
        digitalWrite( LED1, HIGH );
      } else if ( strcmp( ptr, "off" ) == 0 ) {
         digitalWrite( LED1, LOW );
      } else if ( strcmp( ptr, "toggle" ) == 0 ) {
        digitalWrite( LED1, ! digitalRead( LED1 ) );
      }
    }
  } else if ( strncmp( command, "led2", 4 ) == 0 ) {
    char *ptr = strtok( command, " " );
    while( ( ptr = strtok( NULL, " " ) ) != NULL ) {
      if (  strcmp( ptr, "on" ) == 0 ) {
        digitalWrite( LED2, HIGH );
      } else if ( strcmp( ptr, "off" ) == 0 ) {
        digitalWrite( LED2, LOW );
      } else if ( strcmp( ptr, "toggle" ) == 0 ) {
        digitalWrite( LED2, ! digitalRead( LED2 ) );
      } else {
        Serial.println( "Nem ismert paraméter" );
      }
    }
  } else if ( strncmp( command, "cat", 3 ) == 0 ) {
    char str[100] = "";
    char *ptr = strtok( command, " " );
    while( ( ptr = strtok( NULL, " " ) ) != NULL ) {
        sprintf( str, "%s%s", str,ptr );
    }
    Serial.print( "cat=>[" ); Serial.print( str ); Serial.println( "]" );
  } else if ( strncmp( command, "search", 6 ) == 0 ) {
     char *ptr = strtok( command, " " );
     char* param1 = strtok( NULL, " " );
     char* param2 = strtok( NULL, " " );

     char* result = strstr( param1, param2 );
     if ( result )
        Serial.println(  );
     else
        Serial.println( "A keresett string (" + String( param2 ) + ") nem található ebben: " + String( param1 ) );
  } else if ( strncmp( command, "copy", 4 ) == 0 ) {
     char str[100];
     char* ptr = strtok( command, " " );
     char* param1 = strtok( NULL, " " ); // a szöveg
     char* param2 = strtok( NULL, " " ); // mettől
     char* param3 = strtok( NULL, " " ); // hány karaktert

     int length = strlen( param1 );

     int begin = atoi( param2 ), count = atoi( param3 );

     if ( begin > 0 && count > 0 && length >= begin + count ) {
       strncpy( str, param1 + begin - 1, count );
       Serial.println( str );
     } else {
       Serial.println( "érvénytelen hossz" );
     }
  }
}

unsigned long lastToggle = 0;

void loop()
{
  if ( Serial.available() ) {
    command[commandLength++] = ( char )Serial.read();
    delayMicroseconds( 100 );
  } else if ( commandLength > 0 ) {
    command[commandLength] = 0;
    Serial.print( "A beirt parancs: " ); Serial.println( command );
    commandHandler( strToLower( command ) );
    commandLength = 0;
  }

  if ( millis() - lastToggle > 1000 ) {
    lastToggle = millis();
    digitalWrite( LED1, ! digitalRead( LED1 ) );
  }
}