get local temperature into thingspeak

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frank odonnell
frank odonnell 2019-6-3
评论： frank odonnell 2019-6-6
need to know how to retrieve local outdoor temperature in Celsius from say "openweathermap.org" or similar so that Thingspeak/MATLABThingspeak/MATLAB can use it to analyze ideal humidity?
Thank you

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回答（1 个）

Hans Scharler
Hans Scharler 2019-6-5
Try weather.gov and passing in decimal degrees location for your city.
natickWeather = webread('http://forecast.weather.gov/MapClick.php?lat=42.2834300&lon=-71.3495000&FcstType=json');
humidity = str2double(natickWeather.currentobservation.Relh)
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Hans Scharler
Hans Scharler 2019-6-6
True. This a United States government feed. I do not know of any one that covers the world. What locations do you need covered?
frank odonnell
frank odonnell 2019-6-6
Canadian cities, for example Calgary, Alberta. If there is a service that allows access to the weather data using Thingspeak or MATLAB?
As you mught guess, I am new at this Thingspeak/Matlab application. I can get my data to display on my channels, and I would like to do some calcs based on changing barometric pressure, outdoor temperature, e.g. for weather changes and for ideal humidity, and to Email/Txt alerts.

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