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Hans Scharler

MathWorks

Last seen: Today Active since 2011

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Answered
How can I display just a small section of my chart?
Try setting results equal to 10, or days equal to 1. For more options, check out the ThingSpeak documentation: https://www.mathw...

6 months ago | 1

Answered
posting field values within few seconds fails
The free ThingSpeak account tier has an update rate limit of 15 seconds. You can send both field values in one update. fie...

7 months ago | 1

Question


Are you a startup?
I wanted to see if any of you are a part of a startup, represent an accelerator, or an entrepreneur. Let me know below or feel f...

8 months ago | 0 answers | 0

0

answers

Question


Who is using the MATLAB Discord channel?
Is anyone using the MATLAB Discord channel?

1 year ago | 3 answers | 2

3

answers

Answered
Putting a code open source
You can share your open source MATLAB project via GitHub and then peer it to File Exchange. This will get you maximum reach and ...

1 year ago | 0

Answered
Upload trained machine learning model to Thingspeak
There is a "Developing an IoT Analytics System with MATLAB, Machine Learning, and ThingSpeak" paper linked from the ThingSpeak w...

1 year ago | 1

| accepted

Answered
License Manager Error -9 Your username does not match the username in the license file.
The best way to resolve a License Manager Error -9 is by reactivating MATLAB with the activation client. Linux The activation ...

1 year ago | 12

Answered
Translation R code to Matlab
I don't have a direct answer, but you could use a COM-based interface to call your R function from within MATLAB. There is a pro...

1 year ago | 0

Answered
How to fix this error on Matlab analysis for your email notification?
Is your channel private? If so, then you need to supply a Read API Key with the URL. url=strcat('https://api.thingspeak.com/cha...

2 years ago | 1

Answered
How to read data from your thingspeak on Matlab Analysis
I would start with thingSpeakRead function in MATLAB. data = thingSpeakRead(12397,'Fields',[1,4],'NumPoints',3,'OutputFormat','...

2 years ago | 0

Answered
How to read data in thingspeak using rest client?
Hi. You are close. You also need to provide a Read API Key. https://api.thingspeak.com/channels/929272/feeds.xml?results=4&ap...

2 years ago | 0

Answered
i am sending the data from RTC through arduino to thingspeak. the data sent is shown in the serial monitor but cant see any graph on thingspeak.
I would start by combining all of the update requests into one request. String secData = "GET /update?api_key="+ myAPI +"&"+ ...

2 years ago | 0

Answered
ThingSpeak noncommercial channel limits
50% complete refers to how much of the channel settings that you have specified. If you add a description, tags, field labels, a...

2 years ago | 0

| accepted

Answered
get local temperature into thingspeak
Try weather.gov and passing in decimal degrees location for your city. natickWeather = webread('http://forecast.weather.gov...

2 years ago | 0

Answered
thingspeak read --> stock in a variable --> use this variable in thingspeakwrite ? possible ?
I would try this using the MATLAB Analytics app. The MATLAB Analytics app can be scheduled to run periodically. Also, on the lin...

2 years ago | 0

Answered
ThingSpeak don't update channel automatic
I would write to a second ThingSpeak channel instead of writing data back to the same channel. The reason is that ThingSpeak wil...

2 years ago | 0

Answered
Thingspeak bulk update csv problem
What URL are you sending the POST request? For this format, you need this URL: https://api.thingspeak.com/channels/XXXYYY/bulk_u...

2 years ago | 1

| accepted

Answered
Hough transform from scratch using MATLAB code to detect a line
Do you have access to the book, "Digital Image Processing Using MATLAB"? Consider the normal representation of a line: x cos(th...

3 years ago | 0

Answered
Having trouble with upload delay in thingspeak
Free ThingSpeak user accounts have a 15 second rate limit. Paid options, commercial for example, have a 1 second rate limit. ...

3 years ago | 0

Answered
How to interface raspberrypi hardware with Matlab Version 2015 or 2017
I would start with installing the <https://www.mathworks.com/hardware-support/raspberry-pi-matlab.html MATLAB Support Package fo...

3 years ago | 0

Answered
thingSpeakWrite Error in MATLAB
Do you have the <https://www.mathworks.com/matlabcentral/fileexchange/52244-thingspeak-support-toolbox ThingSpeak Support Toolbo...

3 years ago | 0

Answered
Is there a way to access data from a local ThingSpeak server using the ThingSpeak Matlab Toolbox?
Yes, for both thingSpeakRead and thingSpeakWrite, there is a name-value pair called, " <https://www.mathworks.com/help/thingspea...

4 years ago | 0

| accepted

Answered
controlling raspberry pi's output via thingspeak
ThingSpeak supports both <https://www.mathworks.com/help/thingspeak/rest-api.html REST> and <https://www.mathworks.com/help/thin...

4 years ago | 0

| accepted

Answered
Does MATLAB support MQTT?
We just released a File Exchange submission that allows MATLAB to publish and subscribe to/from MQTT brokers. Install <https://w...

4 years ago | 0

| accepted

Answered
Equipment with good compatibility with MatLab
Yes, the Arduino can send the data straight to MATLAB. Install the <https://www.mathworks.com/hardware-support/arduino-matlab.ht...

4 years ago | 0

Answered
how to link thingspeak to matlab gui data
To send data to ThingSpeak from desktop MATLAB, you need to have the ThingSpeak Support Toolbox installed ( <https://www.mathwor...

4 years ago | 1

Answered
How can I access an API which requires OAuth 2.0 authorization, such as Google APIs
To download data from ThingSpeak, you only need to send a request to a channel (public channel) or to channel with a read API ke...

5 years ago | 0