I'm student from Czech and currently I'm working on a meteostation project. I've got an arduino set up, with plenty of weather sensors, as well as WH1080 sensors connected. But right now, I'm only able to read the data via serial port on a computer with arduino IDE or show it on my 20*4 display. As the distance where I need to transfer the data once I finish this is unsuitable for wireless receivers, I found these MAX 485 modules on ebay for cheap.
I quickly got 2 pieces, as well as 5v-3.3v logic level shifter, as I was concerned about different level on the Rpi. I don't know much about Pi's and their pins, as the only thing I've used with them is a DS3231 real time clock module.
Now, the thing I'm trying to achieve is this - I want to be running a bunch of sensors at roof of our house, and have the arduino send the data to Raspi over the rs485 (on request? as the sensor loop would be like 10-15min so maybe communicate on interrupt?) What I'm planning to do with the data on the raspi would be running a software like WeeWx or wfrog to process them and possibly render a local website, that I could make public as port forwarding (i have public IP).
However, there are few questions I have, hopefully its not too much to ask
How would the wiring look like? I was unable to find any dumb-proof tutorial online, as I don't know whether or how to use the logic level shifter.
If I can read the data over serial port, would it be just a plain text (as shown on PC in arduino ide serial monitor), or has each value its address that I could then easily assing to a variable then being used to process the weather data?
If I'm completly wrong in something, or there's some completly different way how theese things are being done by more experienced people, I'd love to hear some suggestions.