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Vinod


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MathWorks

335 total contributions since 2011

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Answered
Getting -401 error code when using WritingMulitpleFields
What is most likely happening is you are making requests to the server far exceeding your allowed data rate. One out of every 15...

23 hours ago | 0

Answered
ThingSpeak graphs and thingSpeakRead stopped working at 20:08 BST
There are no known issues at this time. Channels are updating correctly. See for example: <https://thingspeak.com/channels/9> ...

3 days ago | 0

Answered
Only field1 is updating
What is likely happening is that the fields are being updated inidvidually, and faster than once per 15s. What you really want t...

17 days ago | 0

| accepted

Answered
pulse rate enable interrupt caused esp timeout
First, unless you have a paid ThingSpeak license, trying to update your channel every 5 seconds is a waste of resources. In fact...

27 days ago | 0

Answered
Thingspeak.com yelling "getJSON request failed!"
The underlying issue has been fixed. A missing response header from the server caused your browser to not make any XHR requests....

1 month ago | 0

| accepted

Answered
Can I track how often and who have viewed the shared channel of mine for a day or a month if I shared my private channels with others on ThingSpeak or ThingView?
There are ways to do this -- specifically, you can set up a MATLAB visualization on the channel that when loaded increments a fi...

1 month ago | 2

| accepted

Answered
Bug in API response, Reading multiple Fields with ESP8266 Arduino Library.
I think looking at the response at one point in time is probably leading you to incorrect conclusions because the channel was up...

1 month ago | 0

Answered
how can i solve this error appears when I try reading position
Your channel is empty, and you are trying to index into an empty array retrieved from the channel. Try this: data = thingSpeakR...

1 month ago | 0

Answered
Connect to Sonoff bridge and temperature sensor
This blog entry has good instructions.

1 month ago | 0

| accepted

Answered
Sensor data doesn't gets uploaded to thingspeak channel but it show on the serial monitor
If you have not purchased a ThingSpeak license, your maximum update rate is once every 15 seconds. I do not see where you are li...

1 month ago | 0

Answered
value not getting uploaded
What troubleshooting have you done? Maybe you are updating your channel faster than once every 15 seconds? Share a link to yo...

2 months ago | 0

Answered
Sending YF-S201 Flow meter data to ThingSpeak cloud
I take it you are using a free ThingSpeak account. This requires you to update the channel less frequently than once every 15s. ...

2 months ago | 0

Answered
Time one hour less
What is the time zone of your account? You can log in to ThingSpeak and go to the 'My Profile' and see it.

2 months ago | 0

| accepted

Answered
Gauge widget refresh phenomenon
I suspect this is on account of a slow internet connection. The gauge needs to make a request back to the server to update its v...

3 months ago | 0

Answered
Read real time data on raspberry PI
Have you looked at the Raspberry Pi Support Package?

3 months ago | 0

Answered
Read realtime data from ThingSpeak
If you are using MATLAB installed on your computer, you can install the MQTT in MATLAB toolbox, and subscribe to the channel you...

3 months ago | 1

Answered
Arduino ESP32 stops posting to ThingSpeak after random times (error -301)
Thank you for trying to eliminate some of the potential issues and posting what you've tried before posting. That certainly help...

3 months ago | 0

Answered
Grafana and Thingspeak API
I have this set up like this and it works: 1) Set up the datasource. In my case, I set up a new JSON API with this URL: https:/...

3 months ago | 1

| accepted

Answered
Inconsistent values on sensor readings
From what I can tell by looking at your channel, the values seem to be within normal variation expected from these sensors. Why ...

3 months ago | 0

Answered
Fast and easy plotting of extensive sets of GPS coordinates stored in ThingSpeak
MATLAB has the ability to write CSV, or more generally text files, in any format of your choice. See this documentation page. So...

4 months ago | 1

Answered
Why I get only the last 36 hours?
To keep the application responsive and have a usable experience on the web site, we limit the number of points retrieved to a ma...

4 months ago | 0

Answered
My device sends "1" every 15min, React "On Data Insertion" when Field=1 doesnt Tweet me more than once, why?
Twitter has checks in place to prevent the exact same tweet from being posted frequently. My understanding is this is to limit o...

4 months ago | 1

Answered
Clear Channel-Button doesn't work
The clear channel is an asynchronous operation. If you have a lot of data in your channel, the clearing can take a while and con...

4 months ago | 2

Answered
Annual usage is capped?
I think this page and this FAQ will answer this and more questions you may have.

4 months ago | 1

| accepted

Answered
Channels not updating since license renewal. Error 404 Payment required message
If you renewed your license after the end date, you likely got a new license number. You need to reassociate your channel to thi...

4 months ago | 0

| accepted

Answered
My Google Gauge is showing blank on thing speak
Why not use the gauge widget? Any particular reason you want the Google gauge, specifically?

4 months ago | 0

Answered
Bug in average calc in API read? (Thingspeak)
A NULL or non-numeric value in a field is "Not a Number" and will be treated as a zero in the averaging in the implementation on...

5 months ago | 1

Answered
Is Thingspeak MQTT reliable?
I just tried this example for a few hours, admittedly it is on a Raspberry Pi, and had reliable results with no "holes" in the d...

5 months ago | 0

Answered
Sending data securely, through thingspeak
ThingSpeak API servers support secure HTTPS and MQTT connections between devices and ThingSpeak. If you are looking for examples...

5 months ago | 1

| accepted

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