DFR0259 DFRobot | Development Boards, Kits, Programmers | DigiKey

<b>INTRODUCTION</b><br> <br> RS485 is an industrial standard for long distance, anti-interference and reliable communication. So we create this RS485 Arduino shield, especially designed for the Arduino controller board. It converts UART/Serial protocol to RS485 protocol. This board allows Arduino access to industrial standard protocol easily. <br> <br> In contrast to RS-422, which has a single driver circuit which cannot be switched off, RS-485 drivers use three-state logic allowing individual transmitters to be deactivated. This allows RS-485 to implement linear bus topologies using only two wires. The equipment located along a set of RS-485 wires are interchangeably called nodes, stations or devices. <br> <br> - Integrated a standard RS485 port, a mini RS485 port, RS485 headers<br> - Provide the welding areas to make full use of the free space. And more importantly, it's convenient for your DIY design. <br> - Switch between automatic mode and manual transmission mode, which expand the scope of application. <br> - Besides Tx/Rx interface, there is a switch to block/disable this shield, when Arduino needs to be programmed. <br> - Gold immersion PCB. Long pins on the back adapt to most Arduino controllers. <br> <br> <b>SPECIFICATION</b><br> <br> Power module: +5V<br> Module size: 2.16"x2.08"<br> 16 digital IO port (including an I2C interface) <br> 6 analog IO port and power<br> Operation and programming mode switch<br> Automatic and manual transceiver mode switch (When in manual transceiver mode, the enable end is the 2nd digital IO port) <br> Transceiver indicating LED<br> Standard RS485 interface, mini RS485 interface and RS485 pins<br> Welding area<br> Reset switch<br> PH2.0 sensor interface for DFRobot RS485 series sensor: URM04 Ultrasonic sensor<br> <br> <b>SHIPPING LIST</b><br> <br> RS485 shield x1<br>