Solved

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 mois 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 mois ago

Solved

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

4 mois 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 mois 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 mois 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 mois 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 mois ago | 1

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Answered
'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 mois ago | 0

Answered
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 mois ago | 0

Answered
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 mois 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 ...

5 mois 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...

5 mois ago | 0

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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.

5 mois 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...

6 mois 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...

6 mois 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.

6 mois ago | 0

Channel

ShakeFreq
15 second moving mean of the shake data

6 mois ago

Answered
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...

6 mois 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...

6 mois 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
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...

7 mois 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...

7 mois ago | 0

Answered
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 ...

8 mois ago | 0

Answered
Show value from thingspeak in excel
Here is one example.

10 mois ago | 1

Channel

DataTarget

10 mois 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...

10 mois ago | 0

Answered
Two graphs in one ThingSpeak window
Have a look at this example. It does some manipulation to make sure the x axis are the same, you may not need to do that in your...

10 mois ago | 0

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Answered
Why I can't sent emails with Matlab Analysis? (Having error 429).
See Error Codes. 429 is too many requests. You can see the limits on the send alert page in the limitations section. I recco...

11 mois ago | 0

Answered
ThingSpeak Communications Library - how to read multiple fields with one fetch
The latest version of the library supports multiple reads! See this post.

11 mois ago | 0

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Answered
Things Stack (TTN v3) howto write lorawan message information to ThingSpeak stream
Right now that data is not available directly from the ThingSpeak integration. We will consider it an enhancement request, than...

11 mois ago | 0

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Channel

Shake
Shake Data

11 mois ago