Serial Gateway not connecting - ttyUSB0 in use

[CraigDubya]

@TimO Hi,

So, something interesting... If I stop the openhab2.service I still get no debug information on the serial monitor of the Arduino IDE. Then, if I stop the mysgw.service and open the Arduino IDE I can no longer select the ttyUSB0 port for the serial monitor.

I didn't use the native Arduino IDE to program the serial monitor, but I used my laptop to do that.

[CraigDubya]

I've also tried adding the user pi to the dialout and tty groups, but still I can't select any port in the arduino ide when mysgw.service and openhab2.service are stopped. It's as if the mysgw.service is creating the ttyUSB0 port (virtually?) :confused:

[CraigDubya]

I did a ls /dev/tty* and ttyUSB0 had disappeared...so I unplugged the gateway and plugged it back in again (all while mysgw.service is stopped) then another ls /dev/tty* and ttyUSB0 was back. I started the arduino ide and selected ttyUSB0 and in the serial monitor I now have:

0;255;3;0;9;0 MCO:BGN:INIT GW,CP=RNNGA---,FQ=16,REL=255,VER=2.3.2
0;255;3;0;9;5 TSM:INIT
0;255;3;0;9;7 TSF:WUR:MS=0
0;255;3;0;9;15 TSM:INIT:TSP OK
0;255;3;0;9;18 TSM:INIT:GW MODE
0;255;3;0;9;21 TSM:READY:ID=0,PAR=0,DIS=0
0;255;3;0;9;24 MCO:REG:NOT NEEDED
0;255;3;0;14;Gateway startup complete.
0;255;0;0;18;2.3.2
0;255;3;0;9;28 MCO:BGN:STP
0;255;3;0;9;35 MCO:BGN:INIT OK,TSP=1
0;255;3;0;9;38 TSM:READY:NWD REQ
0;255;3;0;9;45 ?TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=20,pt=0,l=0,sg=0,ft=0,st=OK:

[CraigDubya]

When I restart the mysgw.service and do a ls /dev/tty* the ttyUSB0 is shown in blue as opposed to yellow as seen below.

[mfalkvidd]

@CraigDubya mysgw.service is partly a software gateway. From earlier posts, it seems you also have a hardware gateway (based on an Arduino Nano). Is that correct?

If so, the two gateways might conflict. Is your intention to run two gateways?

[CraigDubya]

@mfalkvidd Hi,

No, my intention is not to run 2 gateways, I did a make on the mysgw.service and changed the port to ttyUSB020 in the config and restarted openhab. I now have communication with the hardware gateway. It seems it's all working properly now, but I'm a bit concerned that I may still have a software gateway running aswell.

[CraigDubya]

I just rebooted my pi, and whatever I did to get the bridge working has reset, and I'm not getting any node connections anymore :confused:

[CraigDubya]

If I stop the mysgw.service and restart openhab2.service the gateway works fine. So, the mysgw.service is starting on bootup, how do I remove or disable mysgw.service from bootup?

[CraigDubya]

@mfalkvidd Sorry, in answer to your earlier question, that's correct... I have an Arduino Nano connected via USB to the raspberry pi as a hardware serial gateway

[CraigDubya]

Ah I found it using:

sudo systemctl disable mysgw.service

Now when I reboot the pi the gateway is working and my sensor node is reporting correctly.

Thanks for everyones help, it's been 2 years since I last played with openhab and mysensors, and what I learned back then I had mostly forgotten. Also with the openhab and mysensors updates that have happened in that time it's been a struggle to get back on track :grin:

[mfalkvidd]

Great work @CraigDuby, thanks for reporting back.

[CraigDubya]

And so here is my serial gateway with 3d printed case: