How do I change a variable password into a fixed one and cutting a wire starts the clock?

[johnwasser]

@sammie72

can I skip the "Press # to arm" message and button?

Yes. I told you how in Reply 4:

@johnwasser

Then change the:

while (keycount == 12)
  {
    char armkey = keypad.getKey();

    if (armkey == '#')

to

   // Wait for trigger wire to be cut
    while (digitalRead(TriggerWirePin) == LOW) {}