Questions tagged [eclipse-iot]

9 questions
7
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1 answer

How can I get access to a public MQTT broker's (like iot.eclipse.org) logs?

There was this recent question in which the OP used iot.eclipse.org as an MQTT broker. This server actually runs the latest released version of Mosquitto broker. I have advised to check the connection on the broker side and I have checked what are…
Bence Kaulics
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6
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1 answer

Which services/resources discovery protocols or mechanisms are mainly used in IoT solutions (Amazon IoT/Eclipse IoT)?

Considering the dynamic and unpredictable aspects of IoT environments, where the advertised services availability may change at any moment due to poor wireless links or battery shortage. I wonder which services/resources, discovery protocols or…
iThabet
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5
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2 answers

How to extract values of multiple topics in onMessageArrived(message) function of Paho MQTT JavaScript API?

I have created a Publisher Script using Paho MQTT JavaScript API which publishes values to two topics MyHome/Temp and MyHome/Hum. The script is running successfully and publishing data to CloudMQTT broker. In my Subscriber script I have subscribed…
tim3in
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5
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1 answer

Eclipse solutions without a gateway

I'm currently reading the Eclipse IoT documents for a big scale company. Knowing that having a Raspberry as a Gateway means more costs, do you guys think that Eclipse solutions for a MQTT connection will work without a gateway?
Juan Ramos
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2
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0 answers

Create an IoT App for iPhone

After a year of testing, my IoT project come to an end. It operates mainly on RPI0 using Python code, and ESP32 using MicroPython code, all connected using MQTT protocol running on RPI3. Now i;m trying to build a basic App for my iPhone to control…
guyd
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Facing error in the file pom.xml of the eclipse-greenhouse-iot package which cause further issues

I am new in this field and I wanted to ask for help regarding the issue that I am facing here; I checked the eclipse-greenhouse-iot package and have seen error in pom.xml file: The error description says: CoreException: Could not calculate build…
0
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0 answers

why TCP session is closed when A6/AI GSM connected to mqtt server immediately?

I use A6/AI GSM module to connect mqtt broker through cellular network. it can open tcp session to server but the session terminate immediately. and gsm try to open tcp session again and session closed again and it keep in this loop. so what should…
0
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1 answer

Question about Eclipse Paho Mqtt Android Client library function "isConnected"?

I'm making an android application to communicate with a bicycle security system using android studio. The application is using the MQTT protocol to talk to a remote server which will act as the broker and relay messages to the security system which…
0
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1 answer

Eclipse broker publishes off on subscribe

I'm testing an MQTT client setup with the Eclipse test server. I noticed off is sent automatically to every topic my client subscribes to, and the retain flag is set. I can see the logic behind it but so far, I haven't found this broker feature…