I have a project which requires me to decode a 4-20mA signal to get 3 values from a sensor.
I have connected the signal wire to a 240ohm resistor connected to ground and I am reading the voltage across the resistor using one of the analog read pins of arduino mega.
Now I need tips on how do I decode this signal? I am completely lost and I am not able to figure out where to start in the first place!
The sensor datasheet can be found here https://www.hydac.com/fileadmin/pdb/pdf/BUW0000000000000010000167487N_0011.pdf
I am working with the signal mentioned on page number 58.
All help is highly appreciated!