Hi actually i try to connect to a fuel dispenser.
The dispenser use a two wire 4-20mA comunication.
I have the protocol but i dont know how is the circuit to make the interface with my microcontroler.
I think the comunication are simplex, some body can help me?
to convert the 4-20mA to TTL, but TX -RX system
The dispenser use a two wire 4-20mA comunication.
I have the protocol but i dont know how is the circuit to make the interface with my microcontroler.
I think the comunication are simplex, some body can help me?
to convert the 4-20mA to TTL, but TX -RX system