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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

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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

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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

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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

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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

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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

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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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Why I don't get thingspeak update from both DHT11 with 4 field
What have you tried to debug the issue? Have you tried printing the measured readings to your serial port before updating your t...

plus de 2 ans il y a | 0

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is there a data upload limit on thinkspeak? for example temperature data uploaded in real time
Your question is similar to this one and the FAQ linked there will answer your questions as well.

presque 3 ans il y a | 1

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ThingSpeak: How to set 'NumPoints' equal to the maximum available in the channel?
See this documentation. The NumPoints can be at max 8000. If you have less than 8000 points in your channel, everything is retur...

presque 3 ans il y a | 0

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At what point in thingspeak data upload created_at timestamp is added to channel data?
The created_at is set at the time the data is received by the ThingSpeak API server. If you are using MQTT, or static IP - which...

presque 3 ans il y a | 0

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Is there a limit to the amount of data I can collect on Thingspeak?
I believe answer to question #23 on the ThingSpeak license FAQ is what you are looking for.

presque 3 ans il y a | 2

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how can i specify the timezone?
Go to https://thingspeak.com/account/profile and set your timezone. Also, ensure your system time is set to the correct timezone...

presque 3 ans il y a | 1

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DELAY in state from on- off spontaneously
Are you using a ThingSpeak account with the free tier? If so, a channel can only be updated every 15 seconds or less frequentl...

presque 3 ans il y a | 0

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What is wrong with this code?
Thingspeak can only accept data sampled at 1hz or lower frequency. That is, tStamps should be at least 1s apart. My initial gues...

presque 3 ans il y a | 0

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Can I detect when a channel is queried?
ThingSpeak does not currently provide this information. If you are concerned about the access to the channel, make it private. T...

presque 3 ans il y a | 0

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How to parse JSON with ThingHTTP when field names have spaces? Standard dot notation doesn't with ThingHTTP?
You can parse JSON using the dot notation. Here's an example: Of course, this is a bit contrived to create a thingHTTP to rea...

presque 3 ans il y a | 0

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ThingHTTP returns -1
It appears that the certificate chain of the website may have an expired or invalid certificate or it is not from a recognized c...

presque 3 ans il y a | 0

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Why ThingSpeak interface become weird?
It appears that certain users in Malaysia are facing an issue as a CDN provider appears to be blocked. Try using Opera browser ...

presque 3 ans il y a | 0

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Why ThingSpeak interface become weird?
I am unable to reproduce this. Are you using a VPN to connect to the internet? Can you show a screenshot of all the browser ...

presque 3 ans il y a | 0

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How to read data from ThingSpeak and control led using sim800L?
Is the SIM card activated? Have you confirmed that you can connect to the internet with the SIM800L module and your SIM card? Do...

presque 3 ans il y a | 0

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All my channels stopped working
Did you check connectivity from your Arduinos? Perhaps they lost internet connectivity?

presque 3 ans il y a | 0

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Multiple sensor data not uploading simultaneously on the Thingspeak fields of the same channel
That is likely because you are trying to update the same channel from multiple sensors and running afoul of how frequently a cha...

environ 3 ans il y a | 0

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Why thingspeak cant receive data from sensor ?
I'd recommend taking a look at the examples in the ThingSpeak library as a starting point for your project.

environ 3 ans il y a | 0

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Hi I have ThingSpeak paid licences but unfortunately i couldn't get real time updated data
How are you updating the channel (embedded device? browser? Something else?) If it is an embedded device, have you checked if it...

environ 3 ans il y a | 0

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Android mqtt dash board configuration problem
I use MQTT Dash on Android and was able to configure my device. See attached screenshots of my config. Please read the documenta...

environ 3 ans il y a | 0

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Data from Libelium to thingspeak
That sounds like an issue on your Libelium gateway. Your best bet is to reach out to Libelium technical support for assistance a...

environ 3 ans il y a | 0

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Daily sum in bar chart is wrong
My suspicion is that the field has a bunch of 'NaN's in them. Can you download the data for the channel from th "Import/Export" ...

environ 3 ans il y a | 0

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"Field value unavailable" message from Thingshow
Did you update the app on your phone to the latest version?

environ 3 ans il y a | 1

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Javascript to display last value of a ThingSpeak channel on web page | ThingSpeak API
If you click the "bubble" icon on the numeric display widget added to your channel, you will get the HTML code required to embed...

environ 3 ans il y a | 1

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