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Vinod


MathWorks

188 total contributions since 2011

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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...

6 giorni 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...

9 giorni 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...

13 giorni 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...

15 giorni 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...

18 giorni 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...

20 giorni 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...

25 giorni 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

25 giorni 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...

25 giorni 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...

30 giorni 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...

30 giorni 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...

circa un mese ago | 0

| accepted

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

circa un mese 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...

circa un mese 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...

circa un mese 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/...

circa un mese 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...

3 mesi 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...

3 mesi 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...

3 mesi ago | 0

Channel


Mints dataset
This data is from the 'mints.mat' file with 8 of the 76 fields mapped

4 mesi ago

Answered
Multiple Values in one Field
You can pack more data into a field, but, you will have to use your own algorithm in MATLAB to unpack the data and update MATLAB...

5 mesi ago | 0

| accepted

Answered
Tweeting frequency with React App
Twitter rate limits how often the exact same tweet can be tweeted from an account. You will likely want to make your tweets uniq...

5 mesi ago | 0

| accepted

Answered
Use MATLAB on local ThingSpeak server
Hi James, At this time the GitHub version of ThingSpeak contains the data collection engine and some charting. If you are loo...

6 mesi ago | 1

| accepted

Answered
How can i put the generated Sensor Data from my Android Matlab App to thingspeak?
From the MATLAB app, you can use the thingSpeakWrite function to write data to ThingSpeak. Note that the time resolution of data...

6 mesi ago | 0

Answered
No Lines between points when plotting on ThingSpeak (Example ThingSpeak Code)
It is very likely that your data has NaN's in them. You can remove the missing entries using the RMMISSING function before plott...

7 mesi ago | 1

| accepted

Answered
thingSpeakPlot vs time of day.
Hi Mark, Can you use plot instead of thingSpeakPlot? Does that resovle the problem? -Vinod

7 mesi ago | 0

Answered
Can anyone sign up in Thingspeak
Yes. If you have an existing MathWorks Account, you can sign in to ThingSpeak using that account's credentials. If you do not h...

7 mesi ago | 0

| accepted

Answered
Is it possible to use a replacement key in a thinghttp header field?
You will need to do this using a MATLAB Analysis app. If you want to schedule it, you can schedule the MATLAB Analysis using the...

9 mesi ago | 0

| accepted

Answered
Is it possible to visualize the 1. derivation of a first curve as a separate second curve in the free of charge Thingspeak? I want to detect high value changes in the first curve.
You can always plot(diff(array)) where array contains the data you read from a ThingSpeak channel using thingSpeakRead.

9 mesi ago | 0

Answered
how do I extract data from a single field at 12 hour intervals without hitting the 8000 datapoint limit?
Allan, Can you describe your use case and application in further detail? How will this data that is older than the most recen...

circa un anno ago | 1

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