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Arduino MKR 485 Shield

SKU ASX00004 Barcode 7630049200296 Show more
Original price $38.60 - Original price $38.60
Original price
$38.60 - $38.60
Current price $38.60

Want to add serial communications to your device using the RS-485 protocol? The Arduino MKR 485 shield will provide the industrial connectivity you need.


Thanks to this shield, you can now connect your MKR board to any of the industrial systems that using the RS 485 protocol.

The MKR 485 shield is the ultimate expansion that allows MKR boards to connect to almost any legacy industrial system, such as industrial PLCs, controllers, drives and HMIs. Old industrial systems (e.g., machinery, heating systems, and conveyors) can to turned into IoT devices through a serial connection using the MKR 485.

The shield is based on the MAXIM MAX3157 ( Datasheet ) and provides Half / Full Duplex . 

Standard operational mode: Half Duplex


Tech specs

Interface Serial
Circuit Operating Voltage 3.3 V
Transceiver MAXIM MAX3157 (datasheet
Buck converter Texas Instruments TPS54232 (datasheet)
Vin (screw connector) 7 V - 24 V
Vin (header) 5 V
Compatibilty MKR size
  Switchable onboard termination resistor
Operating mode Isolated Half / full duplex (switchable)


The following Declarations of Conformities have been granted for this board:
For any further information about our certifications please visit


OSH: Schematics

The Arduino MKR 485 Sheld is open-source hardware! You can build your own board using the following files:


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