Raspberry Pi Project

Data Sending

• If it is possible to send the .json payload with MQTT we will prepare the payload with the C++ code on the RPI.
• The data will be sent once in 15 minutes.
• Send also the timezone (setting is in mobile app).

Data Store

• On the server there will be one .json file for each raspberry pi (weather station).
• There will be one method which will

Android App

• Probably WiFi
• Can displey current weather.
• Will poll the data from raspberry every 5 minutes.
• Configure the station (MQTT, name).

Extensions

• Use the LED display
• OpenWeatherMaps -> public free API for current weather, also uses .json with same structure as we purposed.

Data Format

multiple formats with their own standards but no standard which format to use (Source)

• HDF and NetCDF (file formats)
• GRIB (record format)