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MathWorks

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ThingsSpeak not receiving data from The Things Stack
My recommendation is to reach out to Elsys for a working example. They have access to the sensors and, considering you have paid...

2 giorni fa | 0

Risposto
data not getting on my channel without manual pasting of url
I'd recommend starting from one of the examples in the ThingSpeak library.

12 giorni fa | 0

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Why does ThingSpeak return "0" when more than one data point is routed?
A zero response value is definitely the server rejecting the point. As a paid user a channel can be updated at a rate of up to...

15 giorni fa | 0

Risposto
Usin Thingspeak to control a remote device?
Hello @Giovanni - there are a couple of ways you can use ThingSpeak to control a device. Use the Talkback app. Here's an examp...

16 giorni fa | 0

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Test Micro:bit

3 mesi fa

Risposto
How to fetch and visualise live data from thingspeak fields in Matlab app designer
My recommendation is: 1) Build your app with MATLAB App Designer with the gauges and lamp indicators. 2) On ThingSpeak set up...

3 mesi fa | 1

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Risposto
Issue with TimeControls getting stuck
We'll take a look on the back end why these Time Control got stuck. Typically when I have seen this, it is because something has...

4 mesi fa | 0

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Thingspeak now unable to parse website
I can't access the URL from the public internet in the US. I believe this to be the reason the ThingSpeak servers can't get to t...

5 mesi fa | 0

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error while using Things Speak with Cube MX
If you want to use the ThingSpeak library from your STM Nucleo board, I believe you will need to get these files in your compile...

5 mesi fa | 0

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MATLAB ANALYSIS run Successfully on ThingSpeak, BUT always generates Server Error 500, so doesn't send email
Here's the code I used to test an alert email. % Send ThingSpeak Alert alertURL = "https://api.thingspeak.com/alerts/send"; ...

6 mesi fa | 0

Risposto
Thingspeak - no reading data error code 0
I believe the key is here "...updating the library with WifiS3.h rather than Wifi.h." My guess is the WiFiS3 library is not exac...

6 mesi fa | 1

Risposto
Not receiving data from mqtt broker in a public channel
My guess is the public channel has not seen an update since your client connected to it. I just created a public channel (266275...

6 mesi fa | 0

Canale

Test MQTT subscribe
This is a public channel that gets an update with a value [0-10] in Field1 at least every 10 minutes. You can subscribe to this ...

6 mesi fa

Risposto
thingspeak server closing connection immediately
Are you able to publish/subscribe to the channel updates from a different client such as MQTTX ? If that works, I would suggest ...

7 mesi fa | 0

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Problem connecting reliably to Thingspeak over Ethernet
As you say, a 301/302 from the ThingSpeak library suggests network connectivity issues. Try using a different WiFi network to se...

8 mesi fa | 0

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can I use custom libraries (dlls) written for matlab with Thingspeak
If you have the DLLs and MATLAB code calling those DLLs in a git repo, you could have your MATLAB Analysis on ThingSpeak clone t...

8 mesi fa | 1

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Risposto
Read and Write in one scatch
Yes. You can combine the examples of reading and writing to have a sketch that reads data from one channel and writes to another...

9 mesi fa | 0

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why my esp8266 push data to ThingSpeak will always hit -301 response code
As Christopher says, a 301 typically means your device does not have Internet connectivity.

9 mesi fa | 0

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Message usage reset anniversary date?
It is the anniversary date of you signing up to ThingSpeak. So, if you first created your account on Jul 10,2023, for example, y...

9 mesi fa | 1

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Risposto
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 ...

oltre 2 anni fa | 0

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Risposto
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 ...

oltre 2 anni fa | 3

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Risposto
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 ...

oltre 2 anni fa | 0

Risposto
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...

oltre 2 anni fa | 0

Risposto
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...

quasi 3 anni fa | 0

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How much data it can store for how long
Please take a look at the ThingSpeak license FAQ that answers your questions.

quasi 3 anni fa | 0

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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...

quasi 3 anni fa | 0

Risposto
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...

quasi 3 anni fa | 0

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Risposto
I want to send data to Thingspeak using proteus 8 professional
I think that is a great question for the makers of Proteus 8!

quasi 3 anni fa | 1

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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...

quasi 3 anni fa | 1

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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?

quasi 3 anni fa | 0

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