Answered
Not able to connect to the mqtt service.
I'm glad to hear that correcting the client ID solved the issue for you. The newer process might be slightly more complex than b...

5 meses ago | 0

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How to add data to field with thingHTTP
You can use MATLAB analysis code to add the value to your channel. Use webread() or webwrite() to get the data from the externa...

5 meses ago | 1

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'React' still sending email after deletion
The emails may have been queued up and not delivered by your client right away.. You can use the get alerts history API to see ...

5 meses ago | 0

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Raspberry Pi Pico - Using Thingspeak with SIM800L
This example is for Arduino, but you make be able to get the commands from that demo. Ive seen a lot of Sim800 stuff on the wil...

5 meses ago | 0

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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?
The topic location is a little confusing. Where it says "topic" you need to edit that field.

6 meses ago | 0

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Answered
Bulk-Update Using ESP8266
You can just define the temperature readings as variables, but making them in an array will make it easier to write them to the ...

6 meses ago | 0

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Query with time limit to read the field is not working
You can use MATLAB in the free ThingSpeak even if you dont have a seperate MATLAB license. Those two readings have a timestam...

6 meses ago | 0

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Sending a character string ?
Write the data to the status field (...&status=myStatus... ), and then set 'show status" in your channel settings.

6 meses ago | 0

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[RESOLVED] How to send data from my Arduino to Thingspeak using a GSM SIM800c ?
Seems like you have made a nice start on your first project! You seem pretty close to the goal. Since you shared the API key, I...

7 meses ago | 0

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Answered
Displaying dates instead of minutes in 3 day comparison
The temperature example you used is a way to compare three different ranges of times onthe same plot. You can read the timestam...

7 meses ago | 0

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Connecting to ThinkSpeak With Esp8266 and FireBeetle board Errors
Why not try the ThingSpeak library for Arduino and ESP and others ? I think its a lot easier than using the AT command set.

7 meses ago | 0

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How to retrieve data from thingspeak to unity using rest API ?
You can use the Read Data endpoint to get data from ThingSpeak along with UnityWebRequest in Unity. You can also use the MQTT...

8 meses ago | 0

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Receive Notification when Data not Coming
Yes, this definitely possible. Have a look at the no data check section for the React App help. Also you could write a MATLAB...

8 meses ago | 0

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Answered
Can someone help me with this coding? When I run it always says No data read, it should be show the result I write there because it already passed the conditions
I just read your channel and there is no data in the past day. NumDays ,1 privides the data from the last day starting now. Yo...

9 meses ago | 0

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Answered
Can someone help me with this coding? When I run it always says No data read, it should be show the result I write there because it already passed the conditions
Channel 1517893 is not public. In this line: temperatureData = thingSpeakRead(channelID,'NumDays',1,'Fields',1); you wil need...

9 meses ago | 0

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HTTP Post - No data at receiver
Instead of thingHTTP, I would reccomend you use a MATLAB analysis. You can use the webwrite command to create a POST. There is ...

10 meses ago | 0

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Show value from thingspeak in excel
Here is one example.

11 meses ago | 1

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Send message or command to BBC Micro Bit
I think MQTT is the best way to acheive this. I havent used a micro bit, but I found some examples showing how to connect to an...

11 meses ago | 0

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Two graphs in one ThingSpeak window
Have a look at this example. It does some manipulation to make sure the x axis are the same, you may not need to do that in your...

12 meses ago | 0

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Why I can't sent emails with Matlab Analysis? (Having error 429).
See Error Codes. 429 is too many requests. You can see the limits on the send alert page in the limitations section. I recco...

12 meses ago | 0

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ThingSpeak Communications Library - how to read multiple fields with one fetch
The latest version of the library supports multiple reads! See this post.

alrededor de 1 año ago | 0

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Answered
Things Stack (TTN v3) howto write lorawan message information to ThingSpeak stream
Right now that data is not available directly from the ThingSpeak integration. We will consider it an enhancement request, than...

alrededor de 1 año ago | 0

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Answered
Can I use One ESP32 Device to update 2 ThingSpeak Channels?
Yes you can but the code you wrote wont do it. I would start with the ThingSpeak library for Arduino, ESP8266 and ESP32. Use t...

alrededor de 1 año ago | 1

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Answered
Daily average of a temperature
You can use the pencil icon on the top of the ThingSpeak plot to make the timeScale Daily. Also, you can write the output fro...

alrededor de 1 año ago | 0

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How to insert a .m file from matlab into ThinkSpeak matlab?
You can run a MATLAB file that does not produce a visual output in the MATLAB analysis app. For visualization outputs, use the ...

alrededor de 1 año ago | 1

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Daily sum in bar chart is wrong
I tried this in one of my channels and it seems to work fine. I wonder if there is something different about your data. Can yo...

alrededor de 1 año ago | 0

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New User Thingspeak data
Can either of you share your channel ID if they are public? Then we can have a look at the data you are sending and see what is...

alrededor de 1 año ago | 0

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Bar Graph legend & x axis
This looks like an interesteing application. Can you tell us more about what you are monitoring?

alrededor de 1 año ago | 0

Answered
Getting -401 error code when using WritingMulitpleFields
There are two calls to writefields in your code, I don't see a delay between them. I see a delay at the end of 20 seconds. I wo...

más de 1 año ago | 1

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Answered
Raspberry Pi - MQTT Publish & MQTT Subscribe- Updating Multiple Fields In one MQTT publish request and vice versa
Your message needs to be of the form 'field1=value&field2=value2' etc. If you use the update single field topic instead of the ...

más de 1 año ago | 0