Hi, I have a question to ask.
I split the RJ11 cable that carries data from a rain gauge to its wireless base station to connect
to Arduino, the sketch is already ready, but I somehow doubt doing some performance tests.
In fact, the power supply from 3V cable is already past, and so it is useless to give power with Arduino,
I probably need to do a pull down strap on the cable end of the rain gauge connected with Arduino, whereas the wireless base will have its pull down on the cable end.
However you have any idea how to connect and choose resistance? the rain gauge only two wires
and I not have to plug it in theory supply dell'arduino.
Appearance some ideas ... the weather station is a WH3080.
Once you understand how to go about the rain gauge lighthouse the same for the anemometer and the sensor the wind direction.
I think you will find the Rainfall gauge is a simple reed relay with the tipping bucket carrying a magnet to activate the reed relay on every tip. Once you have calibrated the tipping mechanism and know how many mm rainfall one tip equals, the rest of the program will be easy.
The calibration will need to show how many ml of water causes a tip, and how high that volume of water would be if tipped into a vessel with the same diameter of the top of the rain gauge. The height is the "mm of rainfall", per tip. Note the Arduino needs to count every change of state to count the tips, not just count every "high" pulse.
I would use a 10kOhm pull-up resistor on any digital Arduino input you find convenient with the switch in the rainfall sensor between the input and ground.
The anemometer will probably be similar, that is one reed relay. However the wind direction and temperature will be different and will require further investigation. More dissection of the sensors would be required to suggest anything more.
Cheers, Rob