int a=0;
int i=0;
unsigned long currentTime=millis();
unsigned long previousTime=1;
unsigned long interval=5000;


void setup() {
Serial.begin(9600);

}


void loop() { 
for (i=1;i<11;i++){
if (currentTime-previousTime>=interval){


Serial.println(i);
previousTime=millis();

//delay(5000);

}
}
}