Enables sending and receiving data using the RS-485 standard with RS-485 shields, like the MKR 485 Shield.
This library supports the Maxim Integrated MAX3157 and equivalent chipsets.

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This library is compatible with the samd, mbed_portenta, mbed_opta architectures so you should be able to use it on the following Arduino boards:

Compatibility Note

Note: while the library is supposed to compile correctly on these architectures, it might require specific hardware features that may be available only on some boards.


To use this library, open the Library Manager in the Arduino IDE and install it from there.


The Arduino RS485 library enables you to send and receive data using the RS-485 standard with Arduino® RS485 Shields, like the MKR 485 Shield. Please refer to the MKR RS485 Shield documentation for the specific settings about half, full duplex, and termination.

This library supports the MAX3157 and equivalent chipsets.

To use this library:

#include <ArduinoRS485.h>