Vinod
MathWorks
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Awarded to Vinod on 06 May 2022
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Feeds
I am unable to connect MQTT client using Thingspeak in MATLAB.
I believe you are using an older version of MATLAB. You need to use MATLAB R2022a or newer and have a license to the Industrial ...
presque 2 ans il y a | 0
| A accepté
How to download the root certificate from thingspeak.com? I am unable to locate the root certificate that is required to set up the thingspeak broker.
Here are instructions on how you can download the certificate for any website. For ThingSpeak MQTT broker, you can download the ...
presque 2 ans il y a | 2
| A accepté
Cant view my data on thingspeak app
I recommend starting with the example here as a starting point for your code. The ThingSpeak library on Github is to help users ...
presque 2 ans il y a | 0
Connection between Codesys and Thingspeak
From our server logs it looks like the publish and subscribe topics are invalid. Codesys seems to convert the "/" character in t...
presque 2 ans il y a | 0
want to download files from dropbox to a local computer using websave
The MATLAB function on FileExchange is a pure MATLAB solution and does not require you to write Dropbox apps. Please install the...
presque 2 ans il y a | 0
How much data it can store for how long
Please take a look at the ThingSpeak license FAQ that answers your questions.
presque 2 ans il y a | 0
I want to know MQTT API Key
Please read the <https://www.mathworks.com/help/thingspeak/channels-and-charts-api.html documentation> and examples on how to us...
presque 2 ans il y a | 0
Thingspeak 301 Error with NodeMCU (ESP8266) [writing to multiple channels]
I believe this is because of DNS caching somewhere on your end. See this thread for information. Also see this thread, which get...
presque 2 ans il y a | 0
| A accepté
I want to send data to Thingspeak using proteus 8 professional
I think that is a great question for the makers of Proteus 8!
environ 2 ans il y a | 1
I want to send data to ThingSpeak using Arduino
The question title says "I want to send data to ThingSpeak using Arduino", which is answered by the answer here. If you are int...
environ 2 ans il y a | 1
why do I get the error "Problem updating channel. HTTP error code -301" when connecting the esp board and trying to transfer the data to thingspeak
Have you tried a different network than your phone's wifi hotspot? Do you still get 301 status code on that?
environ 2 ans il y a | 0
| A accepté
Can not connect to ThingSpeak MQTT broker using MQTT X Client
If you're connecting over Secure MQTT, you need to use port 8883, not port 1883 as your screenshot shows.
environ 2 ans il y a | 0
| A accepté
can I send the things speak data to a wordpress website?
You can host the ThingSpeak chart inside of your wordpress site. See this blog entry. There are 3rd party plugins also available...
environ 2 ans il y a | 1
MQTT X and thingspeak - lost connection
Here's the settings you need to connect with MQTTX:
environ 2 ans il y a | 0
Migrating my existing ThingSpeak channel to new MQTT server
If you have 2 devices publishing to the same channel, one with the legacy mqtt connection and another with mqtt3 connection, but...
environ 2 ans il y a | 0
I am trying to publish data through desktop MQTT Client, but it's get connected but when I am doing subscribe it says connection lost?
If the connection is being dropped when you attempt to subscribe, it is most likely you are subscribing to an incorrect topic, o...
environ 2 ans il y a | 0
how to embed matlab script in website ?
You may want to look at MATLAB Production Server and MATLAB Web App Server to build something like what you describe.
environ 2 ans il y a | 0
How to send by HTTP method (POST) many values to one field with diferent timestamps?
I think you are looking to collect a bunch of data and upload a number of points in a single POST request. Take a look at this d...
environ 2 ans il y a | 0
| A accepté
Can we create dashboard and shared with a customer in ThingSpeak ? what is count for paid version ?
Take a look at the answer to this question: https://www.mathworks.com/matlabcentral/answers/740952 and this answer as well
environ 2 ans il y a | 0
| A accepté
API call from postman to Matlab.
I think you will find this documentation helpful: https://www.mathworks.com/help/matlab/ref/webread.html
environ 2 ans il y a | 0
Thingspeak : account creation / login issue
There are no known issues at this time. Do you get any errors? Can you share a screenshot of what you see when you try to lo...
plus de 2 ans il y a | 0
When connecting the second MQTT client to the Thingspeak channel, the connection is first bursting.
If you are using the same triplet of clientid, username and password on multiple devices,only the last connected device will sta...
plus de 2 ans il y a | 1
Bulk upload issue - HTTP Error code 502
@Johannes Kuder: Thank you for posting your question on the ThingSpeak Community. Like @Yongjian Feng says, you should try your ...
plus de 2 ans il y a | 1
From where can I get the access to ThingSpeak MQTT API?
I'd recommend starting by reading the documentation here: <https://www.mathworks.com/help/thingspeak/mqtt-api.html> Also, tak...
plus de 2 ans il y a | 0
LWIP MQTT not connecting
Could you provide more information - what is the client ID of your device? We may be able to look at the server logs given the c...
plus de 2 ans il y a | 0
Can I subscribe my channel(s) with MQTT with a free license?
Yes. Even a free license enables you to publish and subscribe to ThingSpeak channels. Note that you may still only publish to a ...
plus de 2 ans il y a | 0
Downloading data from thingspeak into microbit
ThingSpeak provides <https://www.mathworks.com/help/thingspeak/read-data-from-channel.html an API to read data> stored in your c...
plus de 2 ans il y a | 0
data loss during christmas?
There are no known issues. For example, see this channel: <https://thingspeak.com/channels/12397> Can you try exporting all t...
plus de 2 ans il y a | 0
Thingspeak - status 429 with message "Too Many Requests"
Did you read the note on the help page that says "Users are limited to 2 alerts every 30 minutes. The rate limit is applied when...
plus de 2 ans il y a | 1
Values are getting updated every 15 seconds in thingspeak. How do I lower this time?
Also note that if your license allows you to update a channel once every 15s and you are knowingly wasting resources by having a...
plus de 2 ans il y a | 1
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