MATLAB: How to calculate data with price rate for water consumption.

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I am looking for a code for matlab analysis of my data, I want to calculate water bill for every 100 litre=1USD, for 1 month. So that the user can get total water consumption bill at the end of the month. Please help.

Best Answer

This sounds like a very interesting project. I wonder what sensor you are using to track the water consumption.

It sounds like you need help with the sprintf function. This line seems to be missing a format specifier.

alertBody = sprintf("The Water consumption bill is", 5* (meter_reading/1000));

Have a look at the documentation for sprintf.

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Hi Aman,

You are calling thingSpeakRead with NumDays value of 1. That will give you all the data points (up to 8000) for the past day. If you want only the last data point, you need to substitue NumDays with NumPoints like the following:

meter_reading = thingSpeakRead(readChannelID,'Fields', outputliquidqantityFieldID,'NumPoints',1,'ReadKey',readAPIKey);

For additional information on the thingSpeakRead function, please refer to the document at https://www.mathworks.com/help/thingspeak/thingspeakread.html

Rene

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