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Re: [iot-wg] Struggling with JavaOne Demo
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Hi Jens,
Two things:
- the actual greenhouse is still being developed so there might not be data coming in all the time on this topic. You should use the simulator [1] and create a new simulated greenhouse named « eclipse-greenhouse » if you want to easily send/receive fake data and commands.
- the latest temperature sent by the greenhouse should however always be available on javaonedemo/eclipse-greenhouse/sensors/temperature since it is supposed to be published as a retained message. It seems there is a bug in Mosquitto somewhere since from time to time the retained message just vanishes. I will ask Roger for help again.
Hope this helps?
Benjamin.
[1] http://198.27.66.207:8081/app/#/greenhouses
Le 22 juil. 2014 à 12:43, Jens Reimann <jens.reimann@xxxxxxxxxxxxxxx> a écrit :
> Hi,
>
> I just tried to hook up to the data of the JavaOne Demo [1] and consume
> the temperature value using Eclipse SCADA.
>
> So what I came up with was using Paho and the async client:
>
> connect(tcp://iot.eclipse.org:1883) -> on success -> subscribe
> (javaone2014/eclipse-greenhouse/sensors/temperature)
> sleep(10 seconds)
> disconnect() -> wait
> exit
>
> While everything works well (connect and disconnect), the subscribe also
> seems to succeed, but I never receive any data.
>
> Maybe someone can help me a little bit.
>
> Jens
>
> [1] https://wiki.eclipse.org/IoT/JavaOne2014_Demo
>
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