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...
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...
6 years ago | 0
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...
'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...
6 years 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...
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...
6 years 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...
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...
6 years 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".
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".
6 years 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...
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...
6 years 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...
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...
6 years 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.
6 years ago | 2561 downloads |
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...
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...
6 years 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 ...
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 ...
6 years 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.
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.
6 years 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.
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.
6 years 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 ...
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 ...
6 years 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...
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...
6 years 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...
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...
6 years 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.
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.
6 years 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...
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...
6 years 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 ...
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 ...
6 years 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...
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...
6 years ago | 2
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...
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...
6 years 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...
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...
6 years 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...
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...
6 years 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...
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...
6 years ago | 0
Answered
How to create an editable map on thingspeak?
If you have a paid license of ThingSpeak, you can enable the "Auto Update" checkbox on the MATLAB visualization that will cause ...
How to create an editable map on thingspeak?
If you have a paid license of ThingSpeak, you can enable the "Auto Update" checkbox on the MATLAB visualization that will cause ...
6 years ago | 1
| accepted
Answered
Getting sporadic 404 Bad request and 429 Too Many Requests when posting bulk data
This is most likely with a badly constructed request to ThingSpeak. It will be difficult to debug because it is likely that some...
Getting sporadic 404 Bad request and 429 Too Many Requests when posting bulk data
This is most likely with a badly constructed request to ThingSpeak. It will be difficult to debug because it is likely that some...
6 years ago | 0
| accepted
Answered
Sending an Email to someone else using Thingspeak
ThingSpeak only sends email to the account owner, to prevent it from being used to spam people. You can set up a rule in your em...
Sending an Email to someone else using Thingspeak
ThingSpeak only sends email to the account owner, to prevent it from being used to spam people. You can set up a rule in your em...
6 years ago | 0
Answered
how to enable email notification once a month or after 30 days.
Have you taken a look at the TimeControl app on ThingSpeak? You can use that to schedule your MATLAB code to run on a schedule o...
how to enable email notification once a month or after 30 days.
Have you taken a look at the TimeControl app on ThingSpeak? You can use that to schedule your MATLAB code to run on a schedule o...
6 years ago | 0
| accepted
Answered
ThingSpeak error responses broken?
We are looking into this. I'll post a response here when we have more information.
ThingSpeak error responses broken?
We are looking into this. I'll post a response here when we have more information.
6 years ago | 0
Answered
ESP32 - Arduino - no data seen on Thingspeak
I'd recommend starting with the examples here. They will provide a good foundation as you develop your specific sketch.
ESP32 - Arduino - no data seen on Thingspeak
I'd recommend starting with the examples here. They will provide a good foundation as you develop your specific sketch.
6 years ago | 0
Answered
MQTT subscribe gets no data back
Have you taken a look at this example? It should be possible to modify it for a Particle Argon quite easily.
MQTT subscribe gets no data back
Have you taken a look at this example? It should be possible to modify it for a Particle Argon quite easily.
6 years ago | 0