Configuring The Weather Station - Espressif ESP8266 User Manual

D. Configuring the Weather Station
Earlier when you chose the WeatherStation example you created a copy of the code included
in thelibrary. This code needs to be adapted so that it works for you. There are better options
than putting configuration into your code: we could for instance offer a web interface where
you could configure your settings. This would be much better since you could change values
without changing the code, which would require compiling a new firmware and sending it
over to the device. But to get started we will try to keep things simple...
⚫ Let's start with the WiFi Settings. Replace yourssid with the name of your WiFi network
and yourpassw0rd with its password. I had problems with a network that contained a
dash ("-") in the SSID. If you are having problems consider this hint...
⚫
Next is the update interval. This value specifies how often the weather data should be
updated from the internet. The default is 600 seconds (10 minutes). In my experience this
is a goodvalue, because you don't have unlimited requests in your free
OpenWeatherMap API account and the weather doesn't change so often anyway.
⚫
Now to the Display Settings. If you attach the display as I show in the next chapter you
don't have to change anything here. D3 and D4 are the pin names in the NodeMCU
module. If you get compilation errors about them make sure that you have set your
board to NodeMCU V1.0, if that is the module you are using. If you have another board
just replace the pin numbers with the proper pin number, e.g. 5 or 6.
⚫
Use the Time Client Settings section to adjust your local time zone offset compared to
the UTC time zone. It also allows a half-hour offset, thanks to the user who lives in such
a time zone and made me implement that. (Ignorance is bliss until you get confronted
with it...)
⚫
In the OpenWeatherMap section you can now use the API key you received in the
previous section. Also set the country and city of the place you want to show. To figure
out which values work you can modify this URL:
http://api.openweathermap.org/data/2.5/weather?q=zurich,ch&appid=APIKEY&u
nits=metric
and replace APIKEY with your state or country and city.
For the moment ignore the
look at the "More Projects" chapter). Now we are almost ready to get the weather station
running on the ESP8266 for the first time. But we need to wire the display to the NodeMCU
first.
ThingSpeak settings. You might use it in a future project (have a