Maurice Janssen wrote:
quoted text
> Sorry, it was a bit short.  What I meant to say: "5V,GND,RX,TX" sounds a
> bit like USB, instead of a good old RS-232 serial port that can be used
> as a serial console.
>   
typically the USB lines are called VBUS, D+, D-, and GND.  I would guess
that is a serial port.  Send me one and I'll put a 'scope on it and see :-)