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Christopher Stapels


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MathWorks

196 total contributions since 2016

Marketing Manager, ThingSpeak and Mass Market Hardware

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Answered
Thingspeak Talkback Idempotency issue
One possible solution, though possibly expensive in terms of bytes would be to read the command - instead of executing. Then wh...

circa 8 ore ago | 0

Answered
gauge Apps Plugins not working
This is a known issue, and we have a fix planned for later today. Thank you for letting us know.

1 giorno ago | 0

Answered
Screen alternating between "Login Successful" then "Authenticating" then back to "Signed in successfully" etc
Thanks for letting us know. You can clear all cache or clear the cookies associated with ThingSpeak and MathWorks in your browse...

1 giorno ago | 0

Answered
"Error -303"
-303 is unable to parse resonse, which you can see in the library github. 8000 records seems like a lot of data for a device to...

3 giorni ago | 0

| accepted

Answered
Bug in API response, Reading multiple Fields with ESP8266 Arduino Library.
I think you are comparing two different operations as well. The first is a read of the latest feed entry, or all of the field v...

5 giorni ago | 1

| accepted

Channel


AirQ NDIR

15 giorni ago

Answered
ThingSpeak data tips Matlab Visualization Plot
Some of the features of ThingSpeak field plots are not available on custom visualizations. Interactive plots from custom visua...

18 giorni ago | 1

| accepted

Answered
Newbie Help For PIC and ESP8266 Connection To Thingspeak
Welcome to ThingSpeak. Sorry about the trouble. Use the ThingSpeak library. We make sure its the easiest way. Look in the exa...

24 giorni ago | 1

Answered
Postman Thingspeak Error 400 & Thinkspeak not updating the data
The bulk write API can be kind of tricky when it comes to syntax. Follow the bulk write doc suggestions closely. There is a P...

24 giorni ago | 1

| accepted

Answered
Not getting reading multiple senaors data from thingspeak
I'd start by trying to write one data from the ESP. Just hard code something and make sure it writes to ThingSpeak. Take all th...

25 giorni ago | 0

Answered
can not upload data to thingspeak even while the data is displaying in serial moniter
What are you seeing on the serial monitor? I think the problem is that you are stopping the client before the server acknowlege...

circa un mese ago | 0

Answered
Write to Thingspeak Error in Matlab - URL is incorrectly formed
The most likely reason is that the timestamps already exist in your channel. You cannot write data with a timestamp that alread...

circa un mese ago | 0

Answered
ThingSpeak Communication Library for Arduino with ESP8266
Those pins would be defined by your board properties, not by the ThingSpeak library. It seems that the standard is GPIO1 (TX) a...

circa un mese ago | 0

Answered
Can I list more than 10 private channels?
We are addressing the problem and will release a fix in a future release. As a temporary workaround, add '&per_page=100' to the...

circa 2 mesi ago | 1

| accepted

Channel


Community currently online visitors

circa 2 mesi ago

Answered
Controlling an LED with the Pi 4 using ThingSpeak MQTT subscribe.
I havent looked at the python doc for subscribe. Where do you set the client ID? If this is it, you will want to use a differe...

circa 2 mesi ago | 0

| accepted

Answered
Controlling an LED with the Pi 4 using ThingSpeak MQTT subscribe.
I would look at the MQTT troubleshooting page for subscribe. It is possible that you have settings in your client that the Thin...

circa 2 mesi ago | 0

Answered
Thingspeak broker address not working
The mqtt broker gives really limited messages. If you had parts of the format wrong for the subscribe method, it will probably ...

2 mesi ago | 0

| accepted

Answered
Thingspeak broker address not working
It is working great across all of my many channels, I did not see a break near the time you posted this. What command did you t...

2 mesi ago | 0

Answered
API - Inconsistency with Curl, when downloading a .csv of my channel
You can get all the correct API calls from the Read data section of the documentation. The API limits you to only 8000 points of...

2 mesi ago | 0

Answered
ThingSpeak : Read & Write Multiple Field
Can you describe the data flow a bit more? "in MATLAB Simulink via ThingSpeak Cloud from MIT APP Inventer Application " What ...

3 mesi ago | 1

Answered
PID in ThingSpeak code
I'd suggest you have a look at the MATLAB onramp. Its a two hour introduction to MATLAB fundamentals, I think you would find it ...

3 mesi ago | 0

Answered
Can't get thingSpeak to display data
You are sending the string value "ctcurrent" to ThingSpeak, in your querry string parameters (not the value of the variable). Y...

3 mesi ago | 0

| accepted

Answered
Thingspeak : From a few days ago, I can't display more than about 38Hrs
What is your update rate for that channel? The maximum number of points you can read in a single plot is 8000. Except in limite...

3 mesi ago | 0

| accepted

Answered
thingspeak - Any way to disable "Transfer-Encoding: chunked"?
Are you sending a very large command to your device? The talkback response should be quite small. We cannot change the encoding...

3 mesi ago | 0

| accepted

Problem


Find the worst traffic yesterday

3 mesi ago | 1 | 8 solvers

Solved


Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

3 mesi ago

Answered
Help with basics - cant even copy data to another field
Timestamps in a channel must be uniqiue. Once written, you cannot edit a feed. A feed is the collection of a timestamp and t...

4 mesi ago | 0

Answered
Writing Multiple Fields with My API Key and DHT11
Do you need the Uno to take your data? I would reccomend directly programming the ESP to conenct and write to thringspeak (usin...

4 mesi ago | 0

Answered
How can I delete channels in Thingspeak Webside if i do not need them anymore, some channels for testinh made.
Click on the channel settings tab Scroll to the bottm and you will see choices to clear and delecte the channel. Clear will r...

4 mesi ago | 0

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