Finding NMEA device connection fault [SOLVED]

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8

Thanks all!

So - this is part of my code:

void loop(){
 
if  (Serial.available()==0)
{
      timeout++;
}

if (timeout>1500)
{
  flag=50;   //This is for sending over i2c

          for (byte i=0; i<10; i++){   //This is RESET sequence emulation
          digitalWrite(9, HIGH);
          delay(100);
          digitalWrite(9, LOW);
          delay(100);
          }
}

/*Serial.print("timeout=");  // for control only
Serial.println(timeout);
Serial.print("flag=");
Serial.println(flag);
  */
  
while (Serial.available() > 0){
    timeout =0;  
    gps.encode(Serial.read());
  }

---------CUT----------

i use a little delay(300) in end of main loop - this is acceptable for my task and timeout variable not increased to fast.