@Andrew-Currie Downloaded KiCad and used it to import jBoard2.brd and output .gbr files via Plots plus the .drl file. Checked using GerbView and uploaded to PCBWay. Hopefully this will now work...

I just tried to buy the jBoard2 from PCBWay via OpenHardware and PCBWay say I need to "upload the Gerber RS-274X file". They could not use the auto-order files or the jBoard2.brd/jBoard2.sch files. Is the new Gerber file available or can I convert the existing files to the new format?

After moving from my ubuntu laptop to RP3 I have had success!!
Flashed the sd card with the latest openhabian, waited for everything to auto install on the RP3 and could then install the my sensors (ethernet) gateway on the pi and also open a karaf console to log openhab2 via a remote/headless ssh. My remote browser could open the paper ui via openhabianpi:8080 and I added the ethernet gateway successfully. Adding the motion sensor needed the node id 2 and child id 1 as set by the Arduino sketch. The light level sensor was then turned on and it just showed up as my sensors (2,2) in the paper ui inbox so this level of discovery works! The sensors now show tripped status/light level in the paper ui control.
Looks like I can now progress to using My Sensors to control the mi-lights already working in openhab2.
Thanks Tim for all your work on the binding

@TimO Thanks Tim for your feedback. Here is the log from the gateway. It receives messages from openhab re the ethernet connection and also from the motion sensor and gets a fail from one send

0;255;3;0;9;Starting gateway (RNNGA-, 2.0.0)
0;255;3;0;9;TSM:INIT
0;255;3;0;9;TSM:RADIO:OK
0;255;3;0;9;TSM:GW MODE
0;255;3;0;9;TSM:READY
IP: 192.168.1.9
0;255;3;0;9;No registration required
0;255;3;0;9;Init complete, id=0, parent=0, distance=0, registration=1
0;255;3;0;9;TSP:SANCHK:OK
0;255;3;0;9;TSP:SANCHK:OK
0;255;3;0;9;Eth: connect
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: disconnect
0;255;3;0;9;TSP:SANCHK:OK
0;255;3;0;9;Eth: connect
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: 0;0;3;0;2;
0;255;3;0;9;Eth: 
0;255;3;0;9;Eth: disconnect
0;255;3;0;9;TSP:SANCHK:OK
0;255;3;0;9;TSP:SANCHK:OK
0;255;3;0;9;TSP:MSG:READ 1-1-255 s=255,c=3,t=7,pt=0,l=0,sg=0:
0;255;3;0;9;TSP:MSG:BC
0;255;3;0;9;TSP:MSG:FPAR REQ (sender=1)
0;255;3;0;9;TSP:CHKUPL:OK
0;255;3;0;9;TSP:MSG:GWL OK
0;255;3;0;9;TSP:MSG:SEND 0-0-1-1 s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=ok:0
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=255,c=3,t=24,pt=1,l=1,sg=0:1
0;255;3;0;9;TSP:MSG:PINGED (ID=1, hops=1)
0;255;3;0;9;TSP:MSG:SEND 0-0-1-1 s=255,c=3,t=25,pt=1,l=1,sg=0,ft=0,st=ok:1
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=255,c=3,t=15,pt=6,l=2,sg=0:0100
0;255;3;0;9;!TSP:MSG:SEND 0-0-1-1 s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=fail:0100
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=255,c=3,t=6,pt=1,l=1,sg=0:0
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=255,c=3,t=11,pt=0,l=13,sg=0:Motion Sensor
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=255,c=3,t=12,pt=0,l=3,sg=0:1.0
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=0,t=1,pt=0,l=0,sg=0:
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=255,c=3,t=26,pt=1,l=1,sg=0:2
0;255;3;0;9;TSP:MSG:SEND 0-0-1-1 s=255,c=3,t=27,pt=1,l=1,sg=0,ft=0,st=ok:1
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:0
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:1
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:0
0;255;3;0;9;TSP:SANCHK:OK

The telnet connection shows no action and the gateway device is on the local network

$ telnet 192.168.1.9 5003
Trying 192.168.1.9...
Connected to 192.168.1.9.
Escape character is '^]'.

$ arp -a
HPB482AF (192.168.1.2) at 28:92:4a:c0:c3:27 [ether] on wlan0
WIZnet9FFEED (192.168.1.9) at de:ad:b1:9f:fe:ed [ether] on wlan0
NB604N.Home (192.168.1.1) at 00:60:64:83:50:8b [ether] on wlan0
HF-LPB100 (192.168.1.12) at f0:fe:6b:16:a1:4a [ether] on wlan0

I have tried all sorts of ubuntu firewall settings to allow access to and from 192.168.1.9 port 5003 and also looked into the router settings with no joy.

As another approach I tried the serial gateway and investigated the linux settings given in
http://docs.openhab.org/installation/linux.html#privileges-for-common-peripherals

The furthest I got with the serial gateway was as follows, first the debug log at startup and then when creating the gateway thing in the paper ui

10:07:04.218 [DEBUG] [org.openhab.binding.mysensors       ] - ServiceEvent REGISTERED - {org.eclipse.smarthome.core.thing.binding.ThingHandlerFactory}={component.name=org.openhab.binding.mysensors.internal.factory.MySensorsHandlerFactory, component.id=197, service.id=340, service.bundleid=250, service.scope=bundle} - org.openhab.binding.mysensors
10:07:04.219 [DEBUG] [org.openhab.binding.mysensors       ] - BundleEvent STARTED – org.openhab.binding.mysensors
10:08:52.520 [DEBUG] [org.openhab.binding.mysensors       ] - ServiceEvent REGISTERED - {org.eclipse.smarthome.config.discovery.DiscoveryService}={service.id=341, service.bundleid=250, service.scope=singleton} – org.openhab.binding.mysensors

10:08:52.524 [DEBUG] [ernal.handler.MySensorsBridgeHandler] - Initialization of the MySensors bridge
10:08:52.526 [DEBUG] [col.serial.MySensorsSerialConnection] - Set skip check on startup to: false
10:08:52.526 [DEBUG] [col.serial.MySensorsSerialConnection] - Enabling connection watchdog
10:08:52.527 [DEBUG] [col.serial.MySensorsSerialConnection] - Connecting to ttyUSB1 [baudRate:115200]
10:08:52.530 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache file: given_ids.cached exist.
10:08:52.531 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache (given_ids) content: []
10:08:52.532 [DEBUG] [ernal.handler.MySensorsBridgeHandler] - Initialization of the MySensors bridge DONE!

testRead() open failed: /dev/ttyUSB1

localClose: File Descriptor error, not closing

testRead() open failed: /dev/ttyUSB1

localClose: File Descriptor error, not closing

testRead() open failed: /dev/ttyUSB1

localClose: File Descriptor error, not closing
10:08:52.545 [DEBUG] [col.serial.MySensorsSerialConnection] - Final port list: ttyUSB1:/dev/ttyUSB1

testRead() open failed: ttyUSB1

localClose: File Descriptor error, not closing
Failed to connect on port: ttyUSB1 exception: 
gnu.io.NoSuchPortException

While my plan was to test on my ubuntu 16.04 laptop, I have gone ahead and ordered a Raspberry pi 3 and intend to install the openhabianpi img file. Hopefully better progress there...

Further to my client ethernet gateway not working with the MySensors 2.1.1 library, I tried 2.0.0 and now go much further. The gateway does not keep restarting, talks to the openhab controller and at least reads the messages and tripped status from my motion sensor

0;255;3;0;9;Starting gateway (RNNGA-, 2.0.0)
0;255;3;0;9;TSM:INIT
0;255;3;0;9;TSM:RADIO:OK
0;255;3;0;9;TSM:GW MODE
0;255;3;0;9;TSM:READY
IP: 192.168.1.9
0;255;3;0;9;No registration required
0;255;3;0;9;Init complete, id=0, parent=0, distance=0, registration=1
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:0
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:1
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:0
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:1
0;255;3;0;9;TSP:MSG:READ 1-1-0 s=1,c=1,t=16,pt=0,l=1,sg=0:0
0;255;3;0;9;TSP:SANCHK:OK```

I had to turn on the skipStartupCheck for the ethernet gateway to come online in openhab (and the gateway serial monitor did show the 0;0;3;0;2; and ethernet messages between openhab and the gateway)

15:10:13.316 [DEBUG] [al.protocol.ip.MySensorsIpConnection] - Connecting to IP bridge [192.168.1.9:5003]
15:10:13.819 [DEBUG] [rs.internal.protocol.MySensorsWriter] - Sending to MySensors: 0;0;3;0;2;
15:10:14.320 [DEBUG] [rs.internal.protocol.MySensorsWriter] - Sending to MySensors: 0;0;3;0;2;
15:10:15.320 [DEBUG] [rs.internal.protocol.MySensorsWriter] - Sending to MySensors: 0;0;3;0;2;
15:10:16.320 [DEBUG] [rs.internal.protocol.MySensorsWriter] - Sending to MySensors: 0;0;3;0;2;
15:10:17.321 [DEBUG] [rs.internal.protocol.MySensorsWriter] - Sending to MySensors: 0;0;3;0;2;
15:10:18.321 [ERROR] [al.protocol.ip.MySensorsIpConnection] - Cannot start reading/writing thread, probably sync message (I_VERSION) not received. Try set skipStartupCheck to true
15:10:18.322 [ERROR] [al.protocol.ip.MySensorsIpConnection] - Failed connecting to bridge...next retry in 10 seconds (Retry No.:1)
15:10:18.322 [DEBUG] [al.protocol.ip.MySensorsIpConnection] - Disconnecting from IP bridge ...
15:10:18.323 [DEBUG] [rs.internal.protocol.MySensorsWriter] - Stopping Writer thread
15:10:18.324 [DEBUG] [rs.internal.protocol.MySensorsReader] - Stopping Reader thread
15:10:18.324 [ERROR] [rs.internal.protocol.MySensorsWriter] - (java.lang.InterruptedException) on writing to connection, message: class org.openhab.binding.mysensors.internal.protocol.ip.MySensorsIpWriter
15:10:18.325 [ERROR] [rs.internal.protocol.MySensorsReader] - (java.lang.InterruptedException: sleep interrupted) on reading from connection, message: class org.openhab.binding.mysensors.internal.protocol.ip.MySensorIpReader
15:10:25.236 [DEBUG] [ernal.handler.MySensorsBridgeHandler] - Disposing of the MySensors bridge
15:10:25.236 [DEBUG] [al.protocol.ip.MySensorsIpConnection] - Destroying connection
15:10:25.236 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache file: given_ids.cached exist.
15:10:25.237 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache (given_ids) content: [1]
15:10:25.237 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Writing on cache given_ids, content: [1]
15:10:25.239 [DEBUG] [ernal.handler.MySensorsBridgeHandler] - Initialization of the MySensors bridge
15:10:25.239 [INFO ] [smarthome.event.ThingUpdatedEvent   ] - Thing 'mysensors:bridge-eth:cb1d6dd1' has been updated.
15:10:25.240 [DEBUG] [al.protocol.ip.MySensorsIpConnection] - Set skip check on startup to: true
15:10:25.240 [DEBUG] [al.protocol.ip.MySensorsIpConnection] - Enabling connection watchdog
15:10:25.240 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache file: given_ids.cached exist.
15:10:25.241 [DEBUG] [al.protocol.ip.MySensorsIpConnection] - Connecting to IP bridge [192.168.1.9:5003]
15:10:25.241 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache (given_ids) content: [1]
15:10:25.241 [DEBUG] [ernal.handler.MySensorsBridgeHandler] - Initialization of the MySensors bridge DONE!
15:10:25.244 [WARN ] [al.protocol.ip.MySensorsIpConnection] - Skipping I_VERSION connection test, not recommended...
15:10:25.244 [INFO ] [al.protocol.ip.MySensorsIpConnection] - Successfully connected to MySensors Bridge.

I then got my motion sensor to come online in openhab

15:13:24.300 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: nodeId 1, chiledId: 1, requestAck: false, revertState: false, smartSleep: false
15:13:24.301 [DEBUG] [ternal.handler.MySensorsThingHandler] - Event listener for node 1-1 not registered yet, registering...
15:13:24.305 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'mysensors:motion:24559d07' changed from INITIALIZING to ONLINE```

However the motion sensor (via gateway) and openhab controller are not talking to each other. Does skipping the startup check result in problems?

Any ideas on how to progress with MySensors 2.0.0 library or do I need to wait for a fix to 2.1.1?

Many Thanks...

@David-Link It looks like you have a similar issue to me re the ethernet gateway. I have also tried "everything" and then yesterday discovered an old bug that might have resurfaced. I just put the following up on github:

https://github.com/mysensors/MySensors/issues/777

It might help you..