What is complete?
- The largest hurdle, the mechanical aspects of the spindles for anemometer and wind vane are complete.
- Reed switch board is complete and tested.
- Mast assembly completed.
- Preliminary code testing of anemometer, used to begin deriving the relationship of rotation speed to wind speed functional (just your standard 'wheel speed' program)
- Wind vane code for talking to the I2C expander on the reed switch PCB complete, outputs human readable wind direction
- Most of the sensors I plan to use have already been coded and proven on various other projects
What still needs to be done?
- Interface board to carry the Arduino, RS232 interface, regulators and sensor support circuitry needs to be designed.
- Remaining sensors need to be integrated to the mast
- All outdoor electronics need conformal coating
- PVC needs 'final install' gluing, or perhaps link pinning, such that I can still disassemble it.
- Arduino code needs to be integrated
- I have not even touched the head end yet. For my first version I will just use processing to snag data, parse it and log it.
Can I actually accomplish the items on the above list?
- I have designed plenty of Arduino shields in the past, and already have most of these circuits either in Eagle, on paper, or in my head. Its just a matter of sitting down and doing it.
- Integrating sensors into the mast is a mechanical challenge. The only disadvantage to using size 40 pipe is that the exposure area for sensors is small and circular, making for a high density space. I will likely put all the sensors on a disk board which hangs out the bottom of one the T which also holds the Arduino and support boards. This one will take time, but nothing here is out of my league (confident with the tools required). Just takes time.
- Conformal coating is a trip to the appropriate shop, some cash on the register, and a can in my bag. Not worried about that one at all
- Final 'locked in' assembly is just either gluing the PVC or drilling holes for pinning/bolting. Again, no problems there.
- Integrating the sensor code is just time consuming but not hard. Most of my sensors I already have libraries for. Also, I have proven out this sort of system with the seismometer project in my book "Arduino Projects to Save the World."
- My big challenge is in the head end. I don't work with Linux much, nor Raspberry Pi (have one but have yet to use it). However, in the above mentioned book, I have demonstrated how to read data, parse and log it using processing. I can at least get that far without any trouble. I will have to teach myself about web servers though. This is unlikely to be finished by the time the first round of eliminations.