Arduino keeps disconnecting

Need Help With My Project
1

i am trying to make a arduino send a infrared signal when it receives a specific word from the terminal. It is working now but it disconnects after the word has been send once. I can’t figure out how to avoid this. The code reads the infrared codes from sd card files.
A file looks like this:
1234/
123/
45568/
546/
etc.

#include <SD.h>

int ircoderry[77];


#include <SPI.h>
#include <Ethernet.h>
#include <BlynkSimpleEthernet.h>


WidgetTerminal terminal(V1);

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void setup() {
  pinMode(9, OUTPUT); 
  pinMode(4, OUTPUT);


  SD.begin(4); //sdkaart activeren



  Blynk.begin("d1180c442b4f470fa8c5874aaeb35344");
  }

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

BLYNK_WRITE(V1)
{

  String terminalout = param.asStr();
  if (String(F("au")) == terminalout) { 
    terminal.println(F("k"));
    arrayer(F("aanuitt.txt")); 
  }
  terminal.flush(); 
}


///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


void arrayer(String filee) {
  File dataFile = SD.open(filee);
  char numcom[6]; 
  if (dataFile) { 
    for (byte indexx = 0; indexx <= 77; indexx++) { 
      for (byte index = 0; index <= 6; index++) {
        delayMicroseconds(1000);
        char fille = dataFile.read();
        if (fille != '/') {
          numcom[index] = fille;
        }
        else { 
          ircoderry[indexx] = atoi(numcom); 
          index = 7; 
        }
      }
    }
    
    dataFile.close(); 
    irsend(); 
  }
 
  else {
    dataFile.close();
  }
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void loop() {
  Blynk.run();

}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void pulseIR(long microsecs) {
 

  cli();

  while (microsecs > 0) {
    // 38 kHz is about 13 microseconds high and 13 microseconds low
    digitalWrite(9, HIGH);  
    delayMicroseconds(10);         
    digitalWrite(9, LOW);   
    delayMicroseconds(10);    

    // so 26 microseconds altogether
    microsecs -= 26;
  }
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

void irsend() {
  for (byte indexxx = 0; indexxx <= 77; indexxx++) {
    delayMicroseconds(ircoderry[indexxx]);
    
    indexxx++;
    
    pulseIR(ircoderry[indexxx]);
  }
}
2

I’ve not been through your code in great detail, but I think your issue is the way that the Arduino handles the Ethernet/SD card shield. You can’t actually use both devices at the same time, so you have to disable one before enabling the other.
I think that maybe accessing the SD card is disabling your Ethernet port, hence the disconnection.

Can’t you simply hard-code the IR codes in your code, maybe using a case select statement?

If not, then you need to handle activating the Ethernet hardware and deactivating the SD card hardware (and vice versa) within your code.

Pete.

3

Thank you for your reaction. I wil try it and see if it wiil work. I can’t put the codes in the sketch itself because it will take up to much room as there is a lot of them.