Re: [iot-wg] Struggling with JavaOne Demo

[Benjamin Cabé <benjamin@xxxxxxxxxxx>]

These are « actual » values from the prototype « actual » greenhouse. The temperature sensor reading over i2c seems to have some hiccups that I need to look into.

From now on I will use another topic than javaonedemo/eclipse-greenhouse for sending the values from my test greenhouse, and I encourage anyone interested in testing the demo against a greenhouse to use the simulator. FWIW feel free to do your tests in e.g. javaonedemo/eclipsescada-greenhouse/# namespace to make sure you won’t get polluted by other people. Makes sense?

Benjamin.


Le 22 juil. 2014 à 13:24, Jens Reimann <jens.reimann@xxxxxxxxxxxxxxx> a écrit :

> Now after some time of re-connecting it finally established the
> connection and flooded me with a bunch of values from the topic you named.
> 
> However this cannot be just temperatures, since I got:
> 
> 13:23:09.784 [MQTT Call: paho-945529896189866] DEBUG
> o.e.s.b.e.mqtt.input.MqttInput - Got message - topic:
> javaonedemo/eclipse-greenhouse/sensors/temperature, message: 133.625
> 13:23:09.784 [MQTT Call: paho-945529896189866] DEBUG
> o.e.s.b.e.mqtt.input.MqttInput - Got message - topic:
> javaonedemo/eclipse-greenhouse/sensors/temperature, message: 21.3125
> 13:23:09.784 [MQTT Call: paho-945529896189866] DEBUG
> o.e.s.b.e.mqtt.input.MqttInput - Got message - topic:
> javaonedemo/eclipse-greenhouse/sensors/temperature, message: 136.0
> 
> Jens
> 
> On 07/22/2014 01:23 PM, Jens Reimann wrote:
>> Hello Benjamin,
>> 
>> thanks for helping out.
>> 
>> At the moment I only get "connection refused" from the Broker.
>> 
>> So maybe I start the other way round and then provide our values to the
>> MQTT broker instead. Where could I publish those values to?
>> 
>> Jens
>> 
>> On 07/22/2014 12:51 PM, Benjamin Cabé wrote:
>>> 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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> 
> 
> -- 
> IBH SYSTEMS GmbH
> D-85235 Pfaffenhofen an der Glonn
> Läutenring 43
> Geschäftsführer / CEO: Dr. Thomas Heitzig
> 
> Amtsgericht München
> Handelsregister Nummer  HRB 197959
> USt ID: DE267945175
> 
> Office Munich
> D 80992 München
> Agnes-Pockels-Bogen 1
> T +49 89 18 9 17 49 0
> 
> The information transmitted is intended only for the person or entity
> to which it is addressed and may contain confidential and/or pivileged
> material. Any review, retransmission, dissemination or other use of,
> or taking of any action in reliance upon, this information by persons
> or entities other than the intended recipient is prohibited. If you
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