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Vinod


MathWorks

177 total contributions since 2011

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  • Knowledgeable Level 3
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Answered
You have run out of messages
Can you please log in to ThingSpeak and check your account again?

1 day 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...

3 days ago | 0

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...

3 days 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/...

5 days 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...

2 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...

2 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...

2 months ago | 0

Channel


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

3 months 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...

4 months 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...

4 months 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...

5 months 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...

5 months 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...

6 months ago | 1

| accepted

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

6 months 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...

6 months 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...

8 months 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.

8 months 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...

1 year ago | 1

Answered
ThingSpeak Channel Status Update field
Have you enabled the "Show Status" checkbox on the channel setting page? If so, you should see "good" in your channel status w...

1 year ago | 0

| accepted

Answered
Error using thingSpeakWrite 'Values' must have a maximum of 8 elements.
Can you share the code you are using to update your ThingSpeak channel? Please replace your ThingSpeak API key with ___XXX___ so...

1 year ago | 0

Answered
Re-posed this question
Could you help me understand why almost every one of your posts tagged with "Statistics and Machine Learning Toolbox" and "Data ...

1 year ago | 0

Submitted


Upload files to your DropBox folder from MATLAB
This function allows a user to upload files using MATLAB to DropBox(TM).

1 year ago | 10 downloads |

Answered
How to capture a spectrum from a R&S spectrum analyzer?
See answer to the <https://www.mathworks.com/matlabcentral/answers/337575 question here> .

2 years ago | 0

Answered
Controlling an SCPI instrument in Simulink
Perhaps you can use the Simulink <https://www.mathworks.com/help/simulink/slref/whileiterator.html While Iterator> to run a subs...

2 years ago | 0

| accepted

Answered
How to connect to Keysight oscilloscope using the oscilloscope() function?
Try >> o=oscilloscope; >> o.Reource = 'USB0::0x2A8D::0x1769::MY56310266::INSTR' >> o.Driver = 'AgInfiniiVision' >>...

2 years ago | 0

Answered
Instrument control toolbox error when creating interface object
Install <https://www.mathworks.com/matlabcentral/fileexchange/52848 this support package> and try again. If you are still seeing...

2 years ago | 0

Answered
How to capture a spectrum from a R&S spectrum analyzer and find its maximum?
You could start by modifying <https://www.mathworks.com/help/instrument/examples/reading-inphase-and-quadrature-iq-data-from-a-s...

2 years ago | 0

Answered
Invalid MEX file error while running CAN communication demo
I suspect you don't have your software installed correctly. Specifically I suspect you need to install the Hardware Support Pac...

2 years ago | 0

Answered
I have an agilent 1002A oscilloscope.It is provided with an USB Port So how can i interface it with MATLAB
You should be able to modify this example with the SCPI commands for your oscilloscope: https://www.mathworks.com/matlabcentr...

2 years ago | 0

Answered
DAQ.getdevices works in MATLAB 2015?
According to the <https://www.mathworks.com/help/daq/ref/daq.getdevices.html documentation page>, the function was introduced in...

2 years ago | 0

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