@mfalkvidd , I see. That makes sense, thanks.

I've been busy the last day or so.. and I've now got the radios communicating!

i've used the pin config given by adafruit:

https://learn.adafruit.com/adafruit-feather-m0-radio-with-lora-radio-module/pinouts

i've read about timeouts for these lora boards, so i've upped the values in the both sketches.
https://forum.mysensors.org/topic/8813/any-success-story-on-lora-rfm95-module-and-mysensors

#define RFM95_RETRY_TIMEOUT_MS  (5000ul) 
#define MY_TRANSPORT_STATE_TIMEOUT_MS (20*1000ul)
#define   MY_RFM95_TX_TIMEOUT_MS (10000ul)

I spaced the radios about a 1m apart and they now communicate i'm not sure if distance helped.
Also with the above timeouts they aren't needed at such a short distance.

@mfalkvidd , I see. That makes sense, thanks.

There are some really great dev options here for building sensors

I'm looking at using mGetCommand in my sketch to read the command sent to my node. I read that mGetCommand is marked as Depreciated in the code, and that this and many other methods are marked as Deprecated, as mentioned in the "Deprecated List":

• https://www.mysensors.org/apidocs-beta/deprecated.html
• https://www.mysensors.org/apidocs-beta/group__MyMessagegrp.html#gae2370fc35a3e46b0d83d1efeb9947701

Is there a date when these methods will be obsolete and/or replaced ?
And is there somewhere to find other methods to use that are not being currently deprecated ?
I'm using version 2.3.1

I've been busy the last day or so.. and I've now got the radios communicating!

i've used the pin config given by adafruit:

https://learn.adafruit.com/adafruit-feather-m0-radio-with-lora-radio-module/pinouts

i've read about timeouts for these lora boards, so i've upped the values in the both sketches.
https://forum.mysensors.org/topic/8813/any-success-story-on-lora-rfm95-module-and-mysensors

#define RFM95_RETRY_TIMEOUT_MS  (5000ul) 
#define MY_TRANSPORT_STATE_TIMEOUT_MS (20*1000ul)
#define   MY_RFM95_TX_TIMEOUT_MS (10000ul)

I spaced the radios about a 1m apart and they now communicate i'm not sure if distance helped.
Also with the above timeouts they aren't needed at such a short distance.

hi @mfalkvidd, ah yes.
It doesn't show any connection between the nodes, logs look okay.
GW log:

0;255;3;0;9;20830 MCO:BGN:INIT GW,CP=RLNGS---,REL=255,VER=2.3.1
0;255;3;0;9;21071 TSF:LRT:OK
0;255;3;0;9;21081 TSM:INIT
0;255;3;0;9;21151 TSF:WUR:MS=0
0;255;3;0;9;21161 RFM95:INIT
0;255;3;0;9;21177 RFM95:INIT:PIN,CS=8,IQP=3,IQN=3,RST=4
0;255;3;0;9;21197 RFM95:PTX:LEVEL=10
0;255;3;0;9;21208 TSM:INIT:TSP OK
0;255;3;0;9;21218 TSM:INIT:GW MODE
0;255;3;0;9;21228 TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;21238 MCO:REG:NOT NEEDED
0;255;3;0;14;Gateway startup complete.
0;255;0;0;18;2.3.1
0;255;3;0;9;21249 MCO:BGN:STP
0;255;3;0;9;21259 MCO:BGN:INIT OK,TSP=1
0;255;3;0;9;21270 TSM:READY:NWD REQ
0;255;3;0;9;21280 RFM95:SWR:SEND,TO=255,SEQ=0,RETRY=0
0;255;3;0;9;23430 TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=20,pt=0,l=0,sg=0,ft=0,st=OK:

and the sensor log:

1764594 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
1784606 !TSM:FPAR:FAIL
1784616 TSM:FAIL:CNT=7
1784626 TSM:FAIL:DIS
1784636 TSF:TDI:TSL
1784646 RFM95:RSL
1844657 TSM:FAIL:RE-INIT
1844667 TSM:INIT
1844704 RFM95:INIT
1844719 RFM95:INIT:PIN,CS=8,IQP=3,IQN=3,RST=4
1844740 RFM95:PTX:LEVEL=10
1844750 TSM:INIT:TSP OK
1844760 TSM:FPAR
1844770 RFM95:SWR:SEND,TO=255,SEQ=0,RETRY=0
1846921 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
1866933 !TSM:FPAR:NO REPLY
1866943 TSM:FPAR
1866953 RFM95:SWR:SEND,TO=255,SEQ=1,RETRY=0
1869103 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
1889115 !TSM:FPAR:NO REPLY
1889125 TSM:FPAR
1889135 RFM95:SWR:SEND,TO=255,SEQ=2,RETRY=0
1891285 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
1911297 !TSM:FPAR:NO REPLY
1911307 TSM:FPAR
1911317 RFM95:SWR:SEND,TO=255,SEQ=3,RETRY=0
1913467 TSF:MSG:SEND,255-255-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
1933479 !TSM:FPAR:FAIL
1933489 TSM:FAIL:CNT=7
1933499 TSM:FAIL:DIS
1933509 TSF:TDI:TSL
1933519 RFM95:RSL
1993531 TSM:FAIL:RE-INIT
1993541 TSM:INIT
1993580 RFM95:INIT
1993595 RFM95:INIT:PIN,CS=8,IQP=3,IQN=3,RST=4
1993616 RFM95:PTX:LEVEL=10

I got the two feather M0 RFM96 Lora 433Mhz (https://www.adafruit.com/product/3179) units running in MySensors, one as the GW and another using the MockMySensors sketch. They both seem to be running fine, I increased the timeouts as others have instructed. Although they units aren't communicating with each other.
I've got the following setup in my sketches

#define MY_RADIO_RFM95
#define   MY_DEBUG_VERBOSE_RFM95
#define   MY_RFM95_FREQUENCY (RFM95_434MHZ)
#define   MY_RFM95_MODEM_CONFIGRUATION (RFM95_BW125CR45SF128)
#define RFM95_RETRY_TIMEOUT_MS  (10000ul) 
#define MY_TRANSPORT_STATE_TIMEOUT_MS (20*1000ul)
#define   MY_RFM95_TX_TIMEOUT_MS (10000ul)

//Adafruit M0 Feather Lora RFM95
#define   MY_RFM95_IRQ_PIN 3
#define   MY_RFM95_IRQ_NUM MY_RFM95_IRQ_PIN
#define   MY_RFM95_CS_PIN 8
#define   MY_RFM95_RST_PIN 4

I'm still fairly new to this so I'll keep trying to get them talking. Any ideas or hints appreciated?

Yes, this works using the radiohead library and those sketches. I didn't need to connect any extra wires. I'm not looking at connecting to LoRaWAN at the moment, just mysensors.
I read the board is similar to Arduino Zero also, so i will try using that as a base and try fixing forward so the feather M0 with lora can work with mysensors, if nobody has had this working yet? (mysensors with adafruit feather m0 LoRa RFM9*).
Thanks

@pierrot10 I've got my two new M0 ATSAMD21 boards talking, so the hardware is good :), i used the radioheads library. These definately sound a better chip than the 32u4, although I'll have to see how they go on battery comsumption.
This might sound dumb but I can't compile mysensors scripts (serial gateway) with my boards, I'm using adafruits board defination. Looking at mysensors i can't see this board, except the Sensebender (ATSAMD21), but it has a completely different pin layout. Does that mean I need to map each ping to the correct reference in the code to get this to work with mysensors ?

Thanks @pierrot10, that is fantastic!
I actually have a dead feather 32u4 now, so will order more, but after reading what you say it sounds like the M0 model with the newer updated chipset is a better option.
Just a question on running the base lora radio (feather M0) to a raspberry pi, i presume it will work okay using the standard serial/USB connection. I haven't tried it, as my radio is dead.
Anyway I better order these new ones and getting making, thanks

Thanks very much @pierrot10, that is exactly what i was looking for :). I've got 2x Adafruit Feather 32u4 LoRa Radio, which has the the ATmega32u4 chipset. I believe the M0 model has the newer ATSAMD21G18 chipset. I think apart from the libraries, it should work the same.

I'm trying to connect a Feather bord using the Lora radio to mysensors and i can't get any reception. I've looked through the forums and documentation but I can't see if it is actually supported by mysensors, any help appreciated in pointing me in the correct direction? or if anyone knows if it is compatiable ? thanks