@Alex-Schick
I recognized that baudrate switched for gateway to 74880 instead of 115200 as before.
That is related to https://forum.mysensors.org/topic/1483/trouble-with-115200-baud-on-3-3v-8mhz-arduino-like-serial-gateway-solution-change-baudrate/9

Changed by adding setting in open hab mysensors:baudrate=74880
But opening serial on the raspberry I only see rubish (fine when connected to PC). So connection seems to be not ok....

EDIT: Got it sorted. Flashed for 16mhz and it worked fine with baud rate 38400.

Hi,
I had a working serial Gateway and one temp sensor setup.
I now updated to 2.0 version for both but I can't see the gateway working with openhap while the sensor can send it's data fine it looks.
Any idea what could be the problem?

Sensor Serial log:

Starting sensor (RNNNA-, 2.0.0)
TSM:INIT
TSM:RADIO:OK
TSP:ASSIGNID:OK (ID=1)
TSM:FPAR
TSP:MSG:SEND 1-1-255-255 s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=bc:
TSP:MSG:READ 0-0-1 s=255,c=3,t=8,pt=1,l=1,sg=0:0
TSP:MSG:FPAR RES (ID=0, dist=0)
TSP:MSG:PAR OK (ID=0, dist=1)
TSM:FPAR:OK
TSM:ID
TSM:CHKID:OK (ID=1)
TSM:UPL
TSP:PING:SEND (dest=0)
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=ok:1
TSP:MSG:READ 0-0-1 s=255,c=3,t=25,pt=1,l=1,sg=0:1
TSP:MSG:PONG RECV (hops=1)
TSP:CHKUPL:OK
TSM:UPL:OK
TSM:READY
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=ok:0100
!TSP:MSG:SEND 1-1-0-0 s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=fail:2.0.0
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,ft=1,st=ok:0
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=11,pt=0,l=18,sg=0,ft=0,st=ok:Temperature Sensor
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=ok:1.1
TSP:MSG:SEND 1-1-0-0 s=0,c=0,t=6,pt=0,l=0,sg=0,ft=0,st=ok:
Request registration...
TSP:MSG:SEND 1-1-0-0 s=255,c=3,t=26,pt=1,l=1,sg=0,ft=0,st=ok:2
TSP:MSG:READ 0-0-1 s=255,c=3,t=27,pt=1,l=1,sg=0:1
Node registration=1
Init complete, id=1, parent=0, distance=1, registration=1
TSP:MSG:SEND 1-1-0-0 s=0,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=ok:24.7

Openhab:

2016-08-22 10:23:43.295 [DEBUG] [ySensorsGenericBindingProvider] - New Item "tempWhz1 (Type=NumberItem, State=Uninitialized)" based on configuration "1;0;V_TEMP"
2016-08-22 10:23:43.331 [DEBUG] [.b.m.internal.MySensorsBinding] - activate
2016-08-22 10:23:43.342 [DEBUG] [.o.b.m.internal.gateway.Serial] - Serial port '/dev/ttyAMA0' has been found.
2016-08-22 10:23:43.353 [INFO ] [.service.AbstractActiveService] - MySensors Refresh Service has been started

And nothing else more on the openhab.log even I restart the sensor node.