|Figure 1. The sign displaying weather icons.|
|Figure 2. The sign displaying temperatures.|
The weather data is obtained through the Finnish Meteorological Institute's open data service. The format is a bit on the convoluted side, when compared with for instance what is provided by openweathermap.org. However, openweathermap.org data seemed quite a bit off for my area, so FMI data is much more reliable.
Currently only temperature and a general weather symbol is shown (current symbols are clear, partly cloudy, overcast, light rain, moderate rain and heavy rain). These displays alternate every couple of seconds. I'll probably add precipitation intensity and wind data as well. Also I'll need to draw more weather symbols.
See the display in action on YouTube.