MQTT | ONENET MQTT SDK | SDK library
kandi X-RAY | MQTT Summary
kandi X-RAY | MQTT Summary
ONENET MQTT SDK
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of MQTT
MQTT Key Features
MQTT Examples and Code Snippets
Community Discussions
Trending Discussions on MQTT
QUESTION
I have dataflow pipeline, it's in Python and this is what it is doing:
Read Message from PubSub. Messages are zipped protocol buffer. One Message receive on a PubSub contain multiple type of messages. See the protocol parent's message specification below:
...
ANSWER
Answered 2021-Apr-16 at 18:49How about using TaggedOutput.
QUESTION
I get this most common error message in shiny app. I am well aware of this error and have resolved it dozens of time. But this time I am stumped.
...ANSWER
Answered 2021-Apr-23 at 03:30The problem seems to be in this line
QUESTION
I have a bme688 sensor (from Pimoroni) connected to a RPI ZERO. I have the PAHO MQTT library so I can send the data to the broker.
If you see code below, in the very last line, I have a "time.sleep(5)". The code below works perfectly well. It takes the readings and sends them via the MQTT. The problem I have is that if I change the time from 5 seconds to 300 seconds (10 minutes), the MQTT does not seem to send the data. The RPI ZERO has the raspbian desktop installed so I ran it using Thonny to see if I get an error but everything works fine with the 300 second delay... but it does not send the data across to the broker.
Any thoughts?
...ANSWER
Answered 2021-Jun-12 at 22:53You are not starting the client network loop or manually calling it.
https://www.eclipse.org/paho/index.php?page=clients/python/docs/index.php#network-loop
You probably want to add client.loop_start()
after client.connect()
QUESTION
I am working on MQTT connection establishment to the server.
I need to send the data to the server in JSON schema format using AT Commands.
The module used in N58 Neoway module. Using AT Commands connection got established and for publishing data or subscribing data to/from the server, it should happen in JSON format.
The AT Command used is:
ANSWER
Answered 2021-Jun-08 at 11:42The problem in sending JSON through AT commands is that it contains double quotes "
, that are unfortunately interpreted according to AT commands ETSI specification as the beginning of a string parameter. So, what happens in many modules is that it is impossible so send a JSON string as a parameter.
Some modems vendors solve this issue by starting an online mode in which data can be sent rawly.
N58 uses a different strategy instead, that consists in escaping the special characters. In the AT command guide it is called data link escape.
Though the guide could be better (there's not explicit explanation of data link escape), we can infer it from the examples (see for example the one in AT+UDPSEND
): in order to escape "
character, just write \"
as you would do in a C string. Example:
QUESTION
I need an help, I can't connect with the broker. I'm using MQTTNet library into my api project .net core this is my code:
...ANSWER
Answered 2021-Jun-10 at 13:39C# is not a language I've done much with, but I assume you are missing an await
before mqttClient.ConnectAsync(options, CancellationToken.None);
so the rest of the code waits for the connection to complete before trying to send the message
QUESTION
Nuxtjs using vuetify throwing lots of error Using / for division is deprecated and will be removed in Dart Sass 2.0.0.
during yarn dev
Nuxtjs: v2.15.6 @nuxtjs/vuetify": "1.11.3", "sass": "1.32.8", "sass-loader": "10.2.0",
Anyone know how to fix it ?
...ANSWER
Answered 2021-Jun-01 at 05:16There's an issue with vuetify I think. But if you use yarn, you can use
QUESTION
I am developing a MQTT app that takes some values through a board and bring it to a GUI. So I programmed also in C and in python (for the GUI). I have a problem with UTF-8 codification. In C I wrote it:
...ANSWER
Answered 2021-Jun-10 at 08:58One of the problem is
QUESTION
This might be me misunderstanding how Mongo works/new Go dev - but I'm not able to connect to my mongo instance from Go. When I connect to my Mongo instance using Studio 3T, I can connect just fine, browse the tables, etc. But If I try to connect using the Go module, it complains about not being able to find all the nodes. Is it necessary for it to be able to access all nodes? I thought the replica set itself was supposed to handle the replication?
For example, I have this Go code:
...ANSWER
Answered 2021-Jun-08 at 12:12Do I actually need to expose all the replica sets as well?
Yes. Clients need to see all nodes in a replica set, so they can fail over when master goes down.
QUESTION
I'm trying to return a map with value but return me 0
...ANSWER
Answered 2021-Jun-08 at 11:33This is happening because both your console.log(mapResultTemp);
and return mapResultTemp;
are executed before you are connected to MQTT and/or receive any messages from subscribed topics. You might want to use a promise or async/await function to resolve all topics and messages before returning a Map object.
However, normally you would like to keep the connection and continue receiving messages. This way you could create a function that returns a value of your map when you call it.
QUESTION
I'm working on a Iot project. In my case, user can schedule a actuator command to run on specified time.( say on 08/06/2021 at 08.05 AM). This will be stored in mongodb database as a date variable. My requirement is to send an MQTT publish message to actuator at that specified time. Note that, this scheduling is not like interval scheduling. Each schedule will run exactly one time. I also need to edit the scheduled date time.
There is one way to achieve this. Each time user schedule a command, I can run a setTimeout function. But this is not a good practice and editing the schedule is difficult. So please help me to find a optimal solution for this. Thanks in advance.
...ANSWER
Answered 2021-Jun-08 at 11:12you may check existing cron like packages
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install MQTT
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page