Hi dirkn,
I've been researching how to add a bluetooth module (running at TTL levels already) to my new Evolution mount to increase the wireless range over the internal wifi. Rather than run through the serial port on the bottom of the HC, I'd rather run through the AUX port to take advantage of the +12V to regulate to the required +5V for the bluetooth module. I've looked over the Hutchenson documentation that you mention and I was hoping you could share more details on the cable you created to work with the FTDI module. Using a similar buffer to the 74HC125 and my own FTDI cable, I haven't been able to successfully connect to my scope via Nexremote. Thanks!