Answered
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...

3 years ago | 0

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Answered
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

3 years ago | 0

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Answered
API call from postman to Matlab.
I think you will find this documentation helpful: https://www.mathworks.com/help/matlab/ref/webread.html

3 years ago | 0

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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...

3 years ago | 0

Answered
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...

3 years ago | 1

Answered
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 ...

3 years ago | 1

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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 ...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 1

Answered
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...

3 years ago | 1

Answered
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...

3 years ago | 0

Answered
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.

3 years ago | 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...

3 years ago | 0

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Answered
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...

3 years ago | 0

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Answered
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.

3 years ago | 2

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Answered
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...

3 years ago | 1

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 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 ...

3 years ago | 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 ...

3 years ago | 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...

3 years ago | 0

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

3 years ago | 0

Answered
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...

3 years ago | 0

Answered
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.

3 years ago | 0