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Vinod


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MathWorks

295 total contributions since 2011

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Answered
Fail to Retrieve channel description
Have you checked your GSM module to see that it still has data capacity? Nothing has changed on ThingSpeak early August that can...

1 day ago | 0

Answered
Selecting specific data to show on Thingspeak graph app
I suspect your MQTT gateway is not formatting the data correctly. Why not directly send the MQTT data to mqtt.thingspeak.com ins...

1 day ago | 1

Answered
openstreetmap zoomable map on thingspeak
The functionality to embed a dynamically zoomable open street map on ThingSpeak with user code is not currently available. The d...

1 day ago | 0

| accepted

Answered
Using Thingspeak React with "dynamic" channels
My recommendation would be to set up a TimeControl that triggers MATLAB code that reads data across all your channels. Your MATL...

12 days ago | 0

Answered
Updating Thingspeak channel - multiple devices at same time
A ThingSpeak channel can be updated at most once a second with a paid license, or once every 15 seconds with a free license. If ...

13 days ago | 1

Answered
Error 429 for Bulk Update Data using JSON Document: Too Many Requests
Please refer to the documentation for Bulk Update endpoint, specifically "The number of messages in a single bulk-update is limi...

15 days ago | 1

Answered
ThingSpeak MQTT omits first field.
I think it is because you are missing an important separator in your request. Try modifying to asprintf(&data, "?field1=%d&fiel...

19 days ago | 0

Channel


MQTTTest

21 days ago

Answered
'controlchart' requires Statistics and Machine Learning Toolbox.
To use the controlchart function in MATLAB visualization apps on ThingSpeak, the account you use to log in to ThingSpeak will ne...

1 month ago | 0

Answered
Calculate Dew point Channel 1120609
Can you share your MATLAB code that is doing the dew-point calculation on ThingSpeak? Remember to redact or replace your channel...

1 month ago | 0

Answered
how to send thingspeak data to matlab
thingSpeakRead will get your data from ThingSpeak to MATLAB. Are you using MATLAB on your computer, MATLAB Online, or MATLAB Ana...

1 month ago | 0

Answered
How to set the time zone in my account
Log in to ThingSpeak and go to the profile page, edit your timezone to what you want and remember to "Update Profile".

1 month ago | 1

Answered
MATLAB Visualizations in ThingSpeak
You can upload your files into your MATLAB Drive for sharing. It will require the user to log in to MATLAB Drive to access it. M...

1 month ago | 1

Answered
Update of TS data?
What is the status code you get from ThingSpeak when you update your channel? If you are using the Write Data API and get a HTTP...

2 months ago | 0

| accepted

Submitted


Model-Based Design of a SUV Anti-Rollover Control System
Models and literature demonstrating Model Based Design of a SUV Anti-Rollover Control System.

2 months ago | 4 downloads |

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Answered
Problem sending GPS Data from TTGO T-Call (ESP32) board to Thingspeak using integrated SIM800L.
Try to strip down the example to the minimum to find the source of your issue. Since this is a build issue, I suspect your toolc...

2 months ago | 0

Answered
Arduino built in example "WriteMultipleFields" gets error code -301
Have you made sure you're using the latest version of the library? Are you unable to see channel updates with the examples that ...

2 months ago | 0

Answered
How do I get ThingSpeak (Channel ID: 1077109) to update the ThingSpeak page automatically every 2 minutes.
The MATLAB visualization will update if you reload the page or visit it again every 5 minutes.

2 months ago | 0

Answered
Send GPIO Status to Thingspeak (Lamp Indicator Widget)
Take a look at this example. You can modify it to show your pump status instead of CPU percent utilization quite easily.

2 months ago | 0

Answered
Update channels with Arduino MKR NB 1500 or Dfrobot SIM7600CE-T 4G(LTE) Shield
I'm guessing you're using AT commands to send the data to ThingSpeak. It is likely you will need to modify the AT commands from ...

2 months ago | 0

Answered
Thingspeak Server Uptime and Lost Data
The ThingSpeak team has a very high standard for uptime for API servers. Our releases are planned keeping in mind having zero do...

2 months ago | 0

Answered
Number of Fields in a Thingspeak Channel
Try going to the Channel's "Settings" tab and enabling the fields. You may not have enabled the fields on the channel, or may ha...

3 months ago | 1

Answered
Matlab Analysis won't update my field!
If you want a plot of your values, you need to use a MATLAB visualization and add the output to the view of your channel.

3 months ago | 0

Answered
Trend lines and forcasts
Certainly possible to use MATLAB and fit a curve through the data points and project the curve into the future to see where it m...

3 months ago | 1

Answered
Location data along fields vs channel settings
The lat-lon of the channel is where the channel is located. The lat-lon of the feed is where the actual feed was measured. To ...

3 months ago | 1

| accepted

Answered
Data sent to ThingSpeak only twice
My guess is the RTC is interrupting the network stack during the transmission of data to ThingSpeak. Maybe eliminate the RTC int...

3 months ago | 1

Answered
Widget name with spaces or other special characters
A fix for this has been deployed. Please let us know if you are still seeing spaces being replaced by %20, or other special char...

3 months ago | 0

| accepted

Answered
MATLAB Analysis Code window does not allow editing in Firefox 77.0.1
I just tried Firefox 77.0.1 and I don't have this problem. I suspect it is one of your plugins/extensions that is interfering wi...

3 months ago | 0

Answered
From Google Sheets to ThingSpeak
You can set up a MATLAB analysis code to use this function to read data from your google sheet. Once you have the data in your M...

3 months ago | 2

| accepted

Answered
ThingSpeak Pushing Messages?
If you want SMS messages to your phone, it is easily possible. 1) Use ThingHTTP to send an email alert to yourself. 2) In yo...

3 months ago | 0

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