Help for Weather station

[jetpr]

Help to find a circuit to read wins speed and direction..

[Dwayne]

Hello Jetpr,

Jetpr, I don't think the problem is "circuitry", but the problem lies in what you want to use for hardware.

Airports use a "spinning" 3 legged cup like vein. You can make one yourself, and have a magnet on each cup spin across a coil for a "Spike"... Then from there, you measure the time interval of the spike for wind speed.

For Wind direction...A piece of resistance wire with a "brush" may be a "cheap" and somewhat accurate way of determining direction. Using a AD off of a pic to a 8 bit value, will probably give you a +/- 3 degree (just guessing here) accuracy.

Both of these are assuming you are making your own "Widgets", for the fun of it.

1. Figure out what kind of "widgets" you are going to use.
2. Get the data on them.
3. Design your circuitry around your widgets.
4. Disign your programming around circuitry and widgets.

Dwayne