Wiring of a EC sensor

I bought a ec sensor recently and I am having a little bit of trouble figuring out what the wires connect to. One of them is gnd, I know where that goes. The other connects to a battery, but I don't know where the other two go. The website I bought it from says they are communication wires, the yellow being a 485-a, and the blue being a 485-b. Can anyone tell me what these mean?

Yes, it's the RS-485 serial protocol. Wiki has a good overview.

Can you please clarify? Where can I find it on wiki?

In the search box.

To use an RS485 sensor with Arduino, you will need an RS485 to TTL serial adapter.

Here is one of several possibilities.

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.