can't open device "\\.\COM1" ? ---- arduino nano V3.0

Using Arduino Programming Questions
1

avrdude: ser_open(): can't open device "\.\COM1": The system cannot find the file specified.

I set as Troubleshoot said

code I enter

int led=13;
void setup() {
  // put your setup code here, to run once:
  pinMode(led, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(led, HIGH);
  delay(1000);
  digitalWrite(led, LOW);
  delay(20000);
}
2

HI,
Welcome to the forum.

What OS are you using, and from what I can see you are using a nano, but don't have that board selected.

Have you been able to upload programs before this problem?

Tom... :slight_smile: