Telegesis ETRX3 offline communication error

[rya (ry)]

Hi

I have just received my Telegesis ETRX3 and connected it up but I am getting a offline communication error

it is set to /dev/ttyUSB0 which I have confirmed by running ls /dev/tty* with and without the dongle present

any ideas why its not initialing?

Thanks very much

[vzorglub (Vincent Regaud)]

We will need a bit more info about your system and what you tried already,

Please see:

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Before you ask… Community forum is NOT a helpdesk Let’s put this in the front: nobody here works for openHAB. The community members are helping with an Open Source Project, not a commercial software. Additionally, the forum is NOT dealing with general Home Automation topics, the focus is on openHAB. In some cases, various products or technologies which are not directly linked to openHAB can be discussed but with the proper title, category or tag. We are ALL volunteering our free time to help…

[rya (ry)]

Hi

I am running a custom server which runs vmware and I have installed the latest openhab software

I have manually added

EXTRA_JAVA_OPTS=“-Dgnu.io.rxtx.SerialPorts=/dev/ttyUSB0”

my problem however does sound similar to this one as I also get the server 500 error, but cannot work out how to resolve it

Telegesis Serial port

Thanks Chris, I’ve entered: log.set DEBUG org.openhab.binding.zigbee and log.set DEBUG com.zsmartsystems.zigbee Which logs do you want me to post? Openhab.log again and recreate the issue?

I have checked the open hab log and I get the below

2019-02-19 10:53:45.409 [ERROR] [ding.zigbee.handler.ZigBeeSerialPort] - Serial Error: Port /dev/ttyUSB0 does not exist.
2019-02-19 10:53:45.418 [ERROR] [ngle.telegesis.ZigBeeDongleTelegesis] - Unable to open Telegesis serial port
2019-02-19 10:54:05.508 [ERROR] [nal.common.AbstractInvocationHandler] - An error occurred while calling method ‘ThingHandler.dispose()’ on 'org.openha$
java.lang.NullPointerException: null
at com.zsmartsystems.zigbee.app.discovery.ZigBeeDiscoveryExtension.extensionShutdown(ZigBeeDiscoveryExtension.java:96) ~[?:?]
at com.zsmartsystems.zigbee.ZigBeeNetworkManager.shutdown(ZigBeeNetworkManager.java:529) ~[?:?]
at org.openhab.binding.zigbee.handler.ZigBeeCoordinatorHandler.dispose(ZigBeeCoordinatorHandler.java:303) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?]
at org.eclipse.smarthome.core.internal.common.AbstractInvocationHandler.invokeDirect(AbstractInvocationHandler.java:153) [102:org.eclipse.smart$
at org.eclipse.smarthome.core.internal.common.Invocation.call(Invocation.java:53) [102:org.eclipse.smarthome.core:0.10.0.oh240]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]
at java.lang.Thread.run(Thread.java:844) [?:?]
2019-02-19 10:54:05.509 [ERROR] [core.thing.internal.ThingManagerImpl] - Exception occurred while disposing handler of thing 'zigbee:coordinator_telege$
java.lang.NullPointerException: null
at com.zsmartsystems.zigbee.app.discovery.ZigBeeDiscoveryExtension.extensionShutdown(ZigBeeDiscoveryExtension.java:96) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?]
at org.eclipse.smarthome.core.internal.common.AbstractInvocationHandler.invokeDirect(AbstractInvocationHandler.java:153) [102:org.eclipse.smart$
at org.eclipse.smarthome.core.internal.common.Invocation.call(Invocation.java:53) [102:org.eclipse.smarthome.core:0.10.0.oh240]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]
at java.lang.Thread.run(Thread.java:844) [?:?]

however it shows /dev/ttyUSB0 as not existing but it is present?

@homeauto:/var/log/openhab2$ ls /dev/tty*
/dev/tty /dev/tty16 /dev/tty24 /dev/tty32 /dev/tty40 /dev/tty49 /dev/tty57 /dev/tty8 /dev/ttyS14 /dev/ttyS22 /dev/ttyS30
/dev/tty0 /dev/tty17 /dev/tty25 /dev/tty33 /dev/tty41 /dev/tty5 /dev/tty58 /dev/tty9 /dev/ttyS15 /dev/ttyS23 /dev/ttyS31
/dev/tty1 /dev/tty18 /dev/tty26 /dev/tty34 /dev/tty42 /dev/tty50 /dev/tty59 /dev/ttyprintk /dev/ttyS16 /dev/ttyS24 /dev/ttyS4
/dev/tty10 /dev/tty19 /dev/tty27 /dev/tty35 /dev/tty43 /dev/tty51 /dev/tty6 /dev/ttyS0 /dev/ttyS17 /dev/ttyS25 /dev/ttyS5
/dev/tty11 /dev/tty2 /dev/tty28 /dev/tty36 /dev/tty44 /dev/tty52 /dev/tty60 /dev/ttyS1 /dev/ttyS18 /dev/ttyS26 /dev/ttyS6
/dev/tty12 /dev/tty20 /dev/tty29 /dev/tty37 /dev/tty45 /dev/tty53 /dev/tty61 /dev/ttyS10 /dev/ttyS19 /dev/ttyS27 /dev/ttyS7
/dev/tty13 /dev/tty21 /dev/tty3 /dev/tty38 /dev/tty46 /dev/tty54 /dev/tty62 /dev/ttyS11 /dev/ttyS2 /dev/ttyS28 /dev/ttyS8
/dev/tty14 /dev/tty22 /dev/tty30 /dev/tty39 /dev/tty47 /dev/tty55 /dev/tty63 /dev/ttyS12 /dev/ttyS20 /dev/ttyS29 /dev/ttyS9
/dev/tty15 /dev/tty23 /dev/tty31 /dev/tty4 /dev/tty48 /dev/tty56 /dev/tty7 /dev/ttyS13 /dev/ttyS21 /dev/ttyS3 /dev/ttyUSB0

Thanks very much!

[rlkoshak (Rich Koshak)]

@rya

however it shows /dev/ttyUSB0 as not existing but it is present?

That error can be sometimes misleading. If the openhab user doesn’t have permission to read/write to that “file” it assumes it doesn’t exist.

Have you added the openhab user to the group that owns /dev/ttyUSB0? Usually that’s dialout but on some systems it can be different. ls -l will show what the Group is.