thingSpeakWriterCla​ss

Really simple IoT writer tool - adding data bursts, named fields and efficency option
588 Downloads
Updated 5 Aug 2015

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Writing data from Matlab to ThingSpeak.com is extremely easy (type "doc webwrite" in matlab and check the first example). This class adds three features: (1) Fifo for short bursts of data beyond the 15 s limit (2) An optional powershell script that brings down write time from an unpredictable 0.35-5 seconds to a known 0.035 seconds on any connection. (3) The general ease of working with an object. You see directly what you can do and how to do it.
Example 1 - Minimal:
================
t = thingSpeakWriterClass('8Y3SNIGB3MDGCDUJ');
t.write([1,2,3]);

Example 2 - Named fields:
====================
t = thingSpeakWriterClass('8Y3SNIGB3MDGCDUJ');
t.readFieldNames(45789); %Read and display the channel setup from thingspeak.com
data.Appetite = 5;
data.status = 'Bring me pizza or you shall...';
ok = t.write(data); %ok <= 0 on fail. = entryID on success.

Cite As

Björn Skatt (2024). thingSpeakWriterClass (https://www.mathworks.com/matlabcentral/fileexchange/52338-thingspeakwriterclass), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2015a
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Find more on ThingSpeak in Help Center and MATLAB Answers
Acknowledgements

Inspired by: ThingSpeak support from MATLAB (R2013a-R2014a)

Communities
More Files in the  ThingSpeak Community

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Version Published Release Notes
1.4.0.0

Added white space in description (how hard can it be)?

1.3.0.0

Just edited the description

1.2.0.0

Version 1.2 allows writeMode = 'powershell' to write:
data.status = 'PS ok: !"#¤%&/()=?´´@£$€{[]}\+;:,.-_<>|§½¨^~''*'
Characters '"\;#&' are silently removed and the rest is passed on.
OBS! The standard writeMode = 'webwrite' writes any string.

1.1.0.0

Fixed a couple of typos in the documentation and added a new example

1.0.0.0