I was able to start bluetooth communication.
Here’s a photo showing a serial communication between the Z2 and a
The Z2 is running Minicom on port /dev/rfcomm0, the PC is running
Hyperterminal on com9:
Both have local echo enabled, so you can see what you type.
Here’s a picture of the new bluetooth dongle.
I had to make a new one, because I made a mistake and soldered the + wire to 5V instead of 3.3V.
I’ll correct the older posts soon.