RS485 Shield for Arduino - DFRobot

The Arduino RS485 is a widely used industrial standard for robust, long-distance communication that is immune to interference. To facilitate this, we have designed a specially crafted RS485 shield for the Arduino controller board. This shield transforms the UART/Serial protocol into the RS485 protocol, thereby providing easy access to the industrial standard for Arduino users.

• Integrated a standard RS485 port, a mini RS485 port, RS485 headers
• Provide the welding areas to make full use of the free space. And more importantly, it's convenient for your DIY design.
• Switch between automatic mode and manual transmission mode, which expands the scope of application.
• Besides Tx/Rx interface, there is a switch to block/disable this shield, when Arduino needs to be programmed.
• Gold immersion PCB. Long pins on the back adapt to most Arduino controllers.

• Power module: +5V
• Module size: 55mmx53mm(2.16"x2.08")
• 16 digital IO ports (including an I2C interface)
• 6 analog IO ports and power
• Operation and programming mode switch
• Automatic and manual transceiver mode switch (When in manual transceiver mode, the enable end is the 2nd digital IO port)
• Transceiver indicating LED
• Standard RS485 interface, mini RS485 interface, and RS485 pins
• Welding area
• Reset switch
• PH2.0 sensor interface for DFRobot RS485 series sensor

• Wiki (Arduino RS485 Shield)
• Schematic