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Christopher Stapels


MathWorks

36 total contributions since 2017

ThingSpeak Documentation Writer
and LCH enthusiast

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Christopher Stapels's Badges

  • Knowledgeable Level 2
  • Community Champion
  • Revival Level 2
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Answered
how to do analytics over imported data in thingspeak
What would you like to analyze about the data?

약 1달 ago | 0

Channel


apiTest2

3달 ago

Channel


MQTT SubPub test

3달 ago

Answered
Guru Meditation exception during publishing values to thing speak
You should also be able to update the value of a ThingSpeak field using the REST API. The MQTT connection is intended to be ve...

5달 ago | 0

Answered
matlab and thingspeak manipulate data before plotting
I would recommend setting up a new channel. Then you can set a react to call a MATLAB analysis to write the data to the new cha...

9달 ago | 0

| accepted

Channel


Battery Voltage
0.4871=12.84

10달 ago

Channel


WorkTime

11달 ago

Channel


Soil Monitor Data Summary
Time aligned data

1년 이상 ago

Channel


Daily Stock Data
Google Stock values compiled daily.

1년 이상 ago

Channel


Home Temp Time

1년 이상 ago

Solved


A Simple Tide Gauge with MATLAB
*&#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767 &#8767* You are standing in a few inches of sea water on a beach. You a...

1년 이상 ago

Solved


5 Prime Numbers
Your function will be given lower and upper integer bounds. Your task is to return a vector containing the first five prime numb...

1년 이상 ago

Answered
I want to calculate the derivative of a channel. Can you suggest the best way to do so.
One way would be to use an instance of the React App to test if field 2 has a value in it, perhaps "if field2 < 0". Then have t...

1년 이상 ago | 0

Channel


MyCar Count Channel

1년 이상 ago

Answered
Thingspeakwrite error when using string array
When you write string data to ThingSpeak, it generally wants to have a cell array. You should not usually need to do the Strin...

1년 이상 ago | 0

| accepted

Channel


Lights1
kitchen lights control

1년 이상 ago

Solved


Make an awesome ramp for a tiny motorcycle stuntman
Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

1년 이상 ago

Solved


Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

1년 이상 ago

Answered
No more plot although no errors
As of December 14, your channel has recent values in it. I think the NaN values between real values are making the plot scale u...

1년 이상 ago | 0

| accepted

Channel


HomeTemp1

1년 이상 ago

Channel


Community Scores

1년 이상 ago

Solved


Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

1년 이상 ago

Solved


Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

1년 이상 ago

Solved


How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

1년 이상 ago

Channel


Twitter Data

1년 이상 ago

Channel


IPT Results

2년 이하 ago

Channel


Weather Text

2년 이하 ago

Channel


Office Temperature

2년 이하 ago

Channel


Stock Value Data
Prices for Google Stock every 5 minutes during the times when the market is open

약 2년 ago

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