Anemometer RS485 (modbus) with Arduino

[sniiick]

Hello everyone, I need help to be able to make a connection of an rs485 sensor with Arduino. I have an Arduino Uno and an Anemometer wind direction sensor.

My anemometer works in a DC 10-30V range. Its communication protocol is RS485 and the model is PR-3000-FXJT-NO1. Another piece of information that may be useful is that after finding out, I think I have to use an RS485 converter to communicate successfully with Arduino.

Regarding the code, I would have to find out how to do it because I am quite a beginner at this. Thank you very much for reading this far, I will post an image of how I was making the connection but for the reasons indicated above, it is wrong.

I'm sorry if my text is not very understandable, it's because I used Google Translator to adapt to the language.

[jremington]

@sniiick

use an RS485 converter to communicate successfully with Arduino.

RS485 converter modules are not expensive, and tutorials can be found on line. Search phrase "arduino rs485"

[tsampson_follettice]

You will need to invest in a TTL to RS485 module like this one:

SCM TTL to RS-485 Interface Module - ProtoSupplies

The TTL end goes to the Arduino and the RS485 end goes to your anemometer. You can then use the serial code on the Arduino IDE to read and write to the device. Come back when you get to this point. There are many examples on YouTube that will explain the code snytax.