Okay, I've abandoned a "wired" solution for data logging... if anyone is interested, the OBD port is located underneath the lefthand tank cover.
Now, for a possible "wireless" data logging solution, from a Raspberry Pi Zero, connection can be setup with my EVA over Bluetooth Low Energy.
Similar to how the 'My Energica' mobile app communicates, once connected, it's fairly easy to subscribe to notifications from 2 distinct proprietary Characteristics.
Up to 15 values per second are obtained from 1 Characteristic, which I hope at least contain speed, rpm, power, torque, range, soc, ... a few samples (hexadecimal);
1A-01-F9-FF-BB-11-00-01
1A-FE-07-24-11-9B-29-51
00-FF-E6-28-E4-3F-00-00
01-FF-01-01-02-00-00-00
1A-00-00-00-74-6C-C5-0C
1A-01-F9-FF-BB-11-00-01
1A-FE-03-28-11-9B-29-51
04-00-67-0C-00-00-00-00
04-FE-91-36-00-00-00-00
02-00-62-3C-3E-55-00-19
00-FF-6D-2C-E4-3F-00-00
02-01-83-00-00-00-00-00
02-02-E8-FD-88-0C-FE-FF
01-FF-01-01-02-00-00-00
The second Characteristic, I presume is related to the Trip meter, as it can not only be read, but also written to.
Has anyone figured out how to make sense of those values ?