The RS485 Board (5V) is an accessory board used for adding the RS485 transceiver to your application board.
The RS485 Board (5V) features an SP485/MAX485 onboard, integrates pinheaders and connectors to support multiple communication interfaces. It is designed to use 5V power supply.
SP485/MAX485, control interface, communication interfaces
Development resources: demo codes, schematic, datasheets, etc.
Wiki: www.waveshare.com/wiki/RS485_Board_(5V)