RS485 - Arduino

Hello,

I am relatively new to the arduino world. A servo motor I want to use has the RS485 interface.

Are there any Arduinos that have this communication or do I need an extra shield for the Arduino to communicate with the servo motor?

Thanks!

I moved your topic to an appropriate forum category @loquard12.

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You have lot of examples, just google..
module

Use any RS-485 line driver module together with a Serial port.

If you want to use multiple Serial ports, e.g. one for debugging, then an Arduino with multiple Serial ports is recommended. The Mega has 4 independent Serial ports in hardware. SoftwareSerial libraries exist but are very limited.

Can you provide a link to the datasheet for the servo motor?
Do you know what serial protocol the motor requires.

I believe that there are some Arduino derived devices that do have RS485 as standard. One that has appeared on the forums is called CONTROLLINO and you can find details of the various models on their website.

As already suggested you can go down the UNO route and use an RS485 module with a software serial port to drive it - but there are limitations on this approach. Whether those limitations will be a factor is unknown until we can see the datasheet for the motor.

Another option, again as already suggested, is to use a MEGA2560 board that has 4 hardware serial ports along with the same RS485 module.

If you want to go the route of Arduino badged products, then one of the MKR series of boards + the MKR485 module would also likely work as well.

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