Arduino with driver and receiver using Rs-422 because of distance

[Michael Raun]

I am controlling a relay/lamp over 150 meters with a Arduino uno. To do this I have been told to use a driver and a receiver using RS-422 because of the strong EMI in the environment. 

 

 

 

Arduino -> Driver -> STP-cable-> Receiver -> Transistor -> Relay -> lamp

 

 

During the prototype test I used normal telephone cables and it worked. Does that mean I could just use that instead? Or should I just remove the receiver and driver? Also, I need just 1 par shielded twisted cables but that is difficult to find… and that kind of cable is very expensive. 

 

So what should I do?

[Bruce]

Hi Michael, you may ask for sample of shielded twisted cable from Chinese manufacturer, many factories are interested in involvment in your project from the very beginning, the normal telephone cable is not the best one for EMI environment, for us, we use the shield cable for our ultrasonic wind or wind sensor, by the way, if you need ultrasonic sensor (transducer), we may be your help, good luck.

contact me at [email protected].

BR

Bruce

[Author]

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