{"product_id":"dfrobot-rs485-shield-for-arduino-dfr0259","title":"DFRobot RS485 Shield for Arduino | DFR0259","description":"\u003ch2\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRS485 is an industrial standard for long-distance, anti-interference, and reliable communication. The Arduino RS485 shield, specially designed for the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/product-844.html\"\u003eArduino Uno board\u003c\/a\u003e. It converts UART\/Serial protocol to the \u003ca href=\"https:\/\/www.dfrobot.com\/search-RS485.html\" target=\"_blank\"\u003eRS485\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eprotocol.  This RS485 board allows Arduino talk to industrial devices.\u003c\/p\u003e\n\u003cp\u003eIn contrast to RS-422, which has a single driver circuit that 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 is interchangeably called nodes, stations, or devices.\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated a standard RS485 port, a mini RS485 port, RS485 headers\u003c\/li\u003e\n\u003cli\u003eProvide the welding areas to make full use of the free space. And more importantly, it's convenient for your DIY design.\u003c\/li\u003e\n\u003cli\u003eSwitch between automatic mode and manual transmission mode, which expands the scope of application.\u003c\/li\u003e\n\u003cli\u003eBesides Tx\/Rx interface, there is a switch to block\/disable this shield, when Arduino needs to be programmed.\u003c\/li\u003e\n\u003cli\u003eGold immersion PCB. Long pins on the back adapt to most Arduino controllers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"Introduction\" class=\"content Introduction\"\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cb\u003eWhat is RS485?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\"RS-485 enables the configuration of inexpensive local networks and multidrop communications links. It offers data transmission speeds of 35 Mbit\/s for distances up to 10m and 100 kbit\/s up to 1200 m. Since it uses a differential balanced line over twisted pair (like RS-422), it can span relatively large distances up to 1,200 m (4,000 ft). A rule of thumb is that the speed in bit\/s multiplied by the length in meters should not exceed 10^8. Thus a 50-meter cable should not signal faster than 2 Mbit\/s.\" From Wiki.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Specification\" class=\"content Specification\"\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003ePower module: +5V\u003c\/li\u003e\n\u003cli\u003eModule size: 55mmx53mm(2.16\"x2.08\")\u003c\/li\u003e\n\u003cli\u003e16 digital IO ports (including an I2C interface)\u003c\/li\u003e\n\u003cli\u003e6 analog IO ports and power\u003c\/li\u003e\n\u003cli\u003eOperation and programming mode switch\u003c\/li\u003e\n\u003cli\u003eAutomatic and manual transceiver mode switch (When in manual transceiver mode, the enable end is the 2nd digital IO port)\u003c\/li\u003e\n\u003cli\u003eTransceiver indicating LED\u003c\/li\u003e\n\u003cli\u003eStandard RS485 interface, mini RS485 interface, and RS485 pins\u003c\/li\u003e\n\u003cli\u003eWelding area\u003c\/li\u003e\n\u003cli\u003eReset switch\u003c\/li\u003e\n\u003cli\u003ePH2.0 sensor interface for DFRobot RS485 series sensor:\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/product-101.html\"\u003eURM04 Ultrasonic sensor\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Documents\" class=\"content Documents\"\u003e\n\u003ch2\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dfrobot.com\/wiki\/index.php\/Arduino_RS485_Shield_SKU:_DFR0259\" target=\"_blank\"\u003eWiki (Arduino RS485 Shield)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/Frances9\/DFR0259\/blob\/master\/DFR0259.jpg?raw=true\" target=\"_blank\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"Shipping-List\" class=\"content ShippingList\"\u003e\n\u003ch2\u003e\u003cstrong\u003ePart List:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eRS485 Arduino shield     x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42432286752959,"sku":"MLE04407","price":650.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/MLE04407.jpg?v=1749179295","url":"https:\/\/makerlab.ph\/products\/dfrobot-rs485-shield-for-arduino-dfr0259","provider":"Makerlab PH","version":"1.0","type":"link"}