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We love vectorized solutions. Problem 1 : remove the row average.
Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

4 years ago

Solved

Matlab Basics - Absolute Value
Write a script that returns the absolute value of the elements in x e.g. x = [-1 -2 -3 -4] --> y = [1 2 3 4]

4 years ago

Solved

square root
Find the square root (y) of an input (x).

4 years ago

Solved

Is it a number?
Determine if input is numeric. If it is,output is 1; if it is not, output is 0.

4 years ago

Solved

Basic commands - Least common multiple
Make a function which will return least common multiple of "a" and "b" Example: a=8; b=6; y=24;

4 years ago

Solved

Find the complement of a number in binary
Input x is a decimal number and output y is the complement of binary representation of x. For example, x = 10 has the binary ...

4 years ago

Answered
How to add data to field with thingHTTP
You can use MATLAB analysis code to add the value to your channel. Use webread() or webwrite() to get the data from the externa...

4 years ago | 1

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'React' still sending email after deletion
The emails may have been queued up and not delivered by your client right away.. You can use the get alerts history API to see ...

4 years ago | 0

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Raspberry Pi Pico - Using Thingspeak with SIM800L
This example is for Arduino, but you make be able to get the commands from that demo. Ive seen a lot of Sim800 stuff on the wil...

4 years ago | 0

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I am trying to publish data through desktop MQTT Client, but it's get connected but when I am doing subscribe it says connection lost?
The topic location is a little confusing. Where it says "topic" you need to edit that field.

4 years ago | 0

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Bulk-Update Using ESP8266
You can just define the temperature readings as variables, but making them in an array will make it easier to write them to the ...

4 years ago | 0

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Query with time limit to read the field is not working
You can use MATLAB in the free ThingSpeak even if you dont have a seperate MATLAB license. Those two readings have a timestam...

4 years ago | 0

Channel

Duck Presence

4 years ago

Discussion

Looking for a project Idea? See the MathWorks Excellence in Innovation
If you are a student or researcher looking for a project idea, have a look at the <https://github.com/mathworks/MathWorks-Excell...

4 years ago | 1

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Sending a character string ?
Write the data to the status field (...&status=myStatus... ), and then set 'show status" in your channel settings.

4 years ago | 0

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[RESOLVED] How to send data from my Arduino to Thingspeak using a GSM SIM800c ?
Seems like you have made a nice start on your first project! You seem pretty close to the goal. Since you shared the API key, I...

4 years ago | 0

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Displaying dates instead of minutes in 3 day comparison
The temperature example you used is a way to compare three different ranges of times onthe same plot. You can read the timestam...

4 years ago | 0

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Connecting to ThinkSpeak With Esp8266 and FireBeetle board Errors
Why not try the ThingSpeak library for Arduino and ESP and others ? I think its a lot easier than using the AT command set.

4 years ago | 0

Channel

ShakeFreq
15 second moving mean of the shake data

4 years ago

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How to retrieve data from thingspeak to unity using rest API ?
You can use the Read Data endpoint to get data from ThingSpeak along with UnityWebRequest in Unity. You can also use the MQTT...

4 years ago | 0

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Receive Notification when Data not Coming
Yes, this definitely possible. Have a look at the no data check section for the React App help. Also you could write a MATLAB...

4 years ago | 0

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Discussion

New Movie: Act on Data in ThingSpeak. Fourth in IoT from Data to Action
My dear friend Ram and I have finished our latest movie series. You can watch the <https://www.mathworks.com/videos/iot-from-da...

4 years ago | 3

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Can someone help me with this coding? When I run it always says No data read, it should be show the result I write there because it already passed the conditions
I just read your channel and there is no data in the past day. NumDays ,1 privides the data from the last day starting now. Yo...

4 years ago | 0

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Can someone help me with this coding? When I run it always says No data read, it should be show the result I write there because it already passed the conditions
Channel 1517893 is not public. In this line: temperatureData = thingSpeakRead(channelID,'NumDays',1,'Fields',1); you wil need...

4 years ago | 0

Discussion

IoT from Data to Action: Part 3
The <https://www.mathworks.com/videos/series/iot-from-data-to-action.html third movie> in our new series is live. We focus on M...

4 years ago | 3

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HTTP Post - No data at receiver
Instead of thingHTTP, I would reccomend you use a MATLAB analysis. You can use the webwrite command to create a POST. There is ...

4 years ago | 0

Discussion

New ThingSpeak Video Series: IoT from Data to Action
We've started a new video series on how and why to use ThingSpeak. <https://www.mathworks.com/videos/series/iot-from-data-to-act...

4 years ago | 1

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Show value from thingspeak in excel
Here is one example.

4 years ago | 1

Channel

DataTarget

4 years ago

Answered
Send message or command to BBC Micro Bit
I think MQTT is the best way to acheive this. I havent used a micro bit, but I found some examples showing how to connect to an...

4 years ago | 0