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Christopher Stapels


Last seen: Today

MathWorks

144 total contributions since 2017

Marketing Manager, ThingSpeak and Mass Market Hardware

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Answered
ThingSpeak Data Analysis answer is always NaN
If there is no data in the last 120 minutes, this will return empty, and make the average NaN. humidity = thingSpeakRead(readCh...

4 jours ago | 1

Answered
ThingSpeak Google Gauge name does not show UTF-8 coding correctly
The fix is live, please check it out. I have a widget with Scandinavian letters in the title. https://thingspeak.com/channe...

10 jours ago | 1

| accepted

Submitted


IoT Data Explorer for ThingSpeak and MATLAB
A MATLAB app to visualize ThingSpeak data. Make time comparisons of your data, retime data, and export data.

14 jours ago | 9 downloads |

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Answered
Display in small window
I used appdesigner in MATLAB. I put the following code in the startup function. It updates every 10 seconds. Plus, the window ...

25 jours ago | 0

Answered
MATLAB Visualization for Thingspeak
There must have been some confusion on which products require the paid license. In this case, a paid license for ThingSpeak is n...

environ un mois ago | 0

| accepted

Answered
How to calculate data with price rate for water consumption.
This sounds like a very interesting project. I wonder what sensor you are using to track the water consumption. It sounds like ...

environ 2 mois ago | 0

| accepted

Answered
Things speak data upload from sensors at the same time issue
A single update is generally limited to 8 fields, plus locaton and status information. There are a few ways to achieve the effe...

environ 2 mois ago | 1

| accepted

Channel


import test
Here is the best description ever

2 mois ago

Answered
MQTT subscribe gets no data back
Can you try connecting with another desktop based broker (MATLAB has one) or MQTTFx to make sure you have all the api keys corre...

2 mois ago | 0

Answered
How do i send multiple emails to different people using the Thingspeak Matlab Analysis
You can only send emails to your own account, to prevent misuse of the system. You could use a particular code in the email an...

3 mois ago | 0

Answered
Save React button disabled when Edit React
We have created a fix for this issue and will release a patch in an upcomming release. In the meantime, the easiest work around...

3 mois ago | 0

Answered
Bulk CSV upload to ThingSpeak with Python
When I write write_api_key=xxxxxxxxxxxxxxxx&time_format=absolute&updates=2020-04-03T10:26:23+0100,1.2,2.3,3,4,5,6,7,8,42.0,0.5,...

3 mois ago | 1

| accepted

Answered
Bulk CSV upload to ThingSpeak with Python
You put the values from the csv file into the params. so if your csv file says date, field1, field 2, 2020-01-01 12:00:00,10,...

3 mois ago | 1

Answered
Bulk CSV upload to ThingSpeak with Python
The documentation page explains where to put the channel ID. The Hackster article you mentioned on the forum is the correct one...

3 mois ago | 2

Answered
Can we upload image to Thingspeak?
At present, it is not easy to upload images to ThingSpeak. You could break it up into multiple fields and feeds, but it would r...

3 mois ago | 0

| accepted

Answered
Use Thingspeak to read data from a password protected website
I tried to visit my.solytic and the apge timed out, but that might be because I dont have an account. I went to https://www.sol...

4 mois ago | 0

Answered
Other drones besides Parrot Mambo FPV
We have just released the MATLAB Support Package for Ryze Tello Drones . You can see examples in the Support Package Documentat...

4 mois ago | 4

Answered
how i can add Robotics System Toolbox in ThingSpeak
Unfortunately, Robotics System is not presently supported in ThingSpeak. You can see Access MATLAB Add-On Toolboxes for the co...

4 mois ago | 0

Answered
how can i see matlab simulink data in thingspeak
You can use the ThingSpeak Output block to write data to a ThingSpeak field. You could use the thingSpeakWrite function in yo...

4 mois ago | 1

Answered
Thingspeak graphical user interface
No graphical knobs, but this one: Create Customized ThingSpeak Channel View and the Lamp Indicator widget cover much of what you...

4 mois ago | 0

| accepted

Answered
How can I add multiple data from arduino to one field on Thingspeak?
Have a look at this tutorial: Compare Temperature Data from Three Different Days. It describes one of the template codes availa...

4 mois ago | 0

Channel


Control 3

4 mois ago

Channel


Battery 3

4 mois ago

Channel


Simulink Servo Model Result

4 mois ago

Channel


Simulink Servo Model setting

4 mois ago

Answered
How do I write data to thingSpeak field?
Use a table or timetable wher you have datafield1. thingSpeakWrite(channelID,dataField1,'WriteKey',writeKey) See the example...

5 mois ago | 1

| accepted

Answered
Can't import csv file into thingspeak.
The issue has been fixed and your csv uploads should work as before.

5 mois ago | 0

Channel


import test
Here is the best description ever

5 mois ago

Answered
csv upload fails "...contains invalid location fields"
There were two recent changes to csv upload. Position validation: the Latitude must be from -90 to +90, and Longitude from -...

5 mois ago | 0

| accepted

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