Community Profile

photo

Vinod


MathWorks

199 total contributions since 2011

Contact

Vinod's Badges

  • Personal Best Downloads Level 3
  • First Review
  • 5-Star Galaxy Level 4
  • First Submission
  • Knowledgeable Level 3
  • 6 Month Streak
  • Revival Level 3
  • First Answer
  • Solver

View details...

Contributions in
View by

Answered
Failed to load to the server with 400 status
Isn't this the same question as https://www.mathworks.com/matlabcentral/answers/490380

2 days ago | 0

Answered
Will NodeMCU/ESP8266 reliably send data to Thingspeak for months, without my intervention, reboots etc ?
It's difficult to comment on the reliability of your NodeMCU device with your code running on it without knowing it. I'd say you...

7 days ago | 0

Answered
Thingspeak - Expired License message & upload stopped working
It appears you may have ignored an email requiring you link your account to a MathWorks Account before September 2019. Based on ...

8 days ago | 2

Answered
can somebody provide a REAL copy & paste example how to clear a channel?
An example of the HTTP request to clear a channel on https://thingspeak.com using a tool like Postman can be found in the docume...

13 days ago | 0

Answered
Unable to post to Thingspeak channel
Since your ultimate goal is to get this working on a NodeMCU, I'd recommend startign from the examples in the ThingSpeak Client ...

14 days ago | 0

Answered
My domain is blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
On further investigation, it appears that there is a difference between your AJAX code and the CURL command: AJAX request is: ...

22 days ago | 0

| accepted

Answered
Thingspeak Expiration Date? License Type: Free
I believe <https://thingspeak.com/pages/license_faq the FAQ> answers all your questions. For personal, non commercial projects o...

22 days ago | 1

| accepted

Answered
Thingspeak, change data?
If you want to change the data in a channel, you can clear the channel and re-upload the data. 1) Log in to ThingSpeak and go ...

24 days ago | 0

| accepted

Answered
Can't send data to thingspeak api using GET HTTP
Have you tried using the ThingSpeak library: https://github.com/mathworks/thingspeak-arduino I'd recommend starting with those ...

24 days ago | 0

Answered
Can't upload - free license expired
Can you confirm your account is reactivated?

24 days ago | 0

Answered
Incorrect ThingSpeak update feed error "error_payment_required" status 402 returned
I believe your license was inactivated on account of not linking your legacy ThingSpeak account to a MathWorks account. If you l...

24 days ago | 0

| accepted

Answered
Readmatrix / readtable works on ThingsSpeak ?
If you have access to desktop MATLAB or MATLAB online, you can load the contents of the CSV file in MATLAB and use thingSpeakWri...

1 month ago | 0

Answered
ThingSpeak http error code 0 but data is inserted
The most likely situation is that your device is doing multiple updates within the allowed update rate (every 15s as a free user...

1 month ago | 0

| accepted

Answered
Simple Problem with Pie Chart on Thingspeak using MATLAB Visualization
Does your data have NaN's in the field? You can find this out by exporting the channel data from the 'Data Import/Export' tab of...

1 month ago | 0

Answered
ThingSpeak: missing IPv6 compatibility
It sounds like you're using a ststic IP address in your nodes. Static IP is not recommended for a number of reasons. Would it no...

1 month ago | 0

Answered
update lat, long. Just in order to plot those in a Google Map.
You can update the lat and long fields of the channel. In addition to the 8 fields, there are separate lat, long and elevation f...

2 months ago | 0

Answered
I would like an example of scpi over ethernet to Rigol Instruments using the instrument control toolbox.
I've not tested this as I don't have a Rigol scope, but you should be able to start from here: % Initialize scope. The port num...

2 months ago | 2

Answered
how to handle multiple device ?
Can you describe in more detail your project? How many nodeMCUs do you have? How many sensors per device? What are you doing wit...

2 months ago | 0

Answered
how we store video frames in firebase from matlab?
You might find this documentation helpful: https://www.mathworks.com/help/matlab/import_export/work-with-remote-data.html

2 months ago | 0

Answered
can we store the image from matab to thingspeak?
You might find this documentation page helpful. https://www.mathworks.com/help/matlab/import_export/work-with-remote-data.html...

2 months ago | 0

Answered
3rd Party Cookies
Have you disabled cookies in your browser, specifically, 3rd party cookies? Here are instructions on enabling them: https://di...

2 months ago | 0

Answered
Sending PuTTY-like command through TCPIP or VISA
If you can PuTTY into the box, then it is likely running an SSH server. Try using this: https://www.mathworks.com/matlabcentra...

2 months ago | 0

| accepted

Answered
Thingspeak - Expired License message & upload stopped working
Your request to re-activate your account has been addressed. Please log in to ThingSpeak and confirm you are able to send data t...

2 months ago | 0

| accepted

Answered
You have run out of messages
Can you please log in to ThingSpeak and check your account again?

2 months ago | 0

Answered
ThingSpeakWrite() limit only 33% more in Home version than free, should that be?
There are multiple levels of counters on https://thingspeak.com/account. The table shows the number of messages remaining and is...

2 months ago | 1

Answered
wrong time in my thingspeak chart
If you have browser extensions/plugins that are changing your browser's timezone, then you will see this issue. Try logging in...

2 months ago | 0

| accepted

Answered
How do I write to a ThingSpeak channel from a Raspberry pi via code deployed using the Matlab Coder?
As you said, there is a block in the Raspberry Pi Support Package that you can use. https://www.mathworks.com/help/supportpkg/...

2 months ago | 0

Answered
Plot won't show line
My guess is that your data has a bunch of NaN's in it which is causing the issue. Look at the documentation of the rmmissing a...

4 months ago | 0

| accepted

Answered
Trying to compile ThingSpeak Toolbox Support into a standalone App. How to add P file requirements manually.
If you are using R2019a (or newer) of MATLAB, you do not need to install the ThingSpeak Support Toolbox -- the functions are bui...

4 months ago | 0

| accepted

Answered
How can ı use talkback on thingspeak with simulink?
There are specific blocks in Simulink to send data to ThingSpeak or read data from ThingSpeak. See: https://www.mathworks.com...

4 months ago | 0

Load more