Building a Weather Station - Part 1

I have wanted to build a weather station for a while but have never had a location to put one. I still don't, in fact where we are now is the worst possible location due to the surroundings, but I'm hoping that I can build one for one of the local boating places.  Actually I hope I can find a home for the one I've already built!

 Here is a diagram of what I have built.

1. Instruments include (wind speed, wind direction), (rainfall), (temperature, humidity), and (barometric pressure).  Wiring = (4 wire RJ11), (2 wire RJ11), (Grove Cable), (Onboard)
2. Instruments are connected to a board from SwitchDoc called the Weather Plus that has a microprocessor with a Wifi adapter (programmed using the Arduino IDE).
3. Weather data is available either via an Http interface or via a stream from the onboard serial port.  I elected to integrate with both to test reliability.
4. A Raspberry Pi Zero is used to interrogate the Weather Plus board to feed an instance of Weewx, a popular open source weather station package.
5. A webcam could also be supported in a follow-on phase.
6. Weewx integrates, out of the box, with both the Weather Underground and with Windguru.
7. Additional resiliency might be provided, in a follow-on phase, by adding a monitor capable of power cycling the entire platform (Arduino with a relay)

 The most challenging aspect of the configuration is building for resiliency. This is what I am testing now:

• Single Http (Read) Error
• Wait one minute, try again
• Cleared on next good read
• Five Http Errors
• Reset WeatherBoard
• Sleep for five
• Cleared in ten minutes
• Five more Http Errors
• Reboot
• Five more Http Errors (Phase 2)
• Power cycle WeatherBoard
• Sleep for five
• Handled by a "Monitor"
• Watch time stamp of “lastActive” file created by toWeewx on every update created
• If it does not change in 15 minutes reboot (5 for the serial interface)
• Cant use the feeder file between toWeewx and Weewx as it is touched by both sides