On Tue, 28 Jan 2020 at 11:15, Bob Goodwin <bobgoodwin@fastmail.us> wrote:
I have an Omron BP786N for checking blood pressure. It will connect to
the iPhone via Bluetooth but it would be more convenient if I can
connect it directly to my Fedora 31 desktop workstation.

One  Omron BP786N review indicates you can email (as a simple CSV format file) data 
from the iPhone.   

Is there an application for doing that?

Note that the Omron BP786N uses Bluetooth LE and may not be compatible with
older BT hardware.   There was Omron Open API Announcement which seems
to be for data uploaded by your device to Omron's "cloud".    OPBM cross-platform app
supports USB devices. OBPM Issue 25 is a request for BT support and has a link to 
an example of reverse engineering a BT scale.  BPM also involves very small data. 
Unless the data are obfuscated, reverse engineering should be similar to that for a 
scale -- could make a nice project for a youngster.

--
George N. White III