{"product_id":"mikroe-989","title":"RS485 click 3.3V","description":"\u003csection id=\"info-description\"\u003e\n\u003ch4\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/h4\u003e\n\n\u003cp\u003e\u003cstrong\u003eRS485 click 3.3V\u003c\/strong\u003e carries the \u003ca href=\"https:\/\/download.mikroe.com\/documents\/datasheets\/sn65hvd12.pdf\" target=\"_blank\"\u003eSN65HVD12\u003c\/a\u003e half-duplex, RS-485 transceiver from Texas Instruments. It is designed for balanced data transmission and complies with EIA standards RS-485 and RS-422. The click is designed to run on a 3.3V power supply. RS485 5V click communicates with the target microcontroller over UART interface, with additional functionality provided by the PWM pin on the mikroBUS™ line.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eSN65HVD12 features\u003c\/strong\u003e\u003c\/h4\u003e\n\n\u003cp\u003eInternal ESD protection circuits protect the transceiver bus terminals against ±16-kV Human Body Model (HBM) electrostatic discharges and ±4-kV electrical fast transients (EFT).\u003c\/p\u003e\n\n\u003cp\u003eThe SN65HVD1x half-duplex family provides internal biasing of the receiver input thresholds for open-circuit, bus-idle, or short-circuit failsafe conditions, and a typical receiver hysteresis of 35 mV\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eHow the click works\u003c\/strong\u003e\u003c\/h4\u003e\n\n\u003cp\u003eThere are four screw terminals on the board Those marked with “+” and “-” are RS485 differential high and differential low communication lines. We added two more terminals for VCC and GND reference if needed for further interfacing. Communication with the board is done using simple UART interface.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h4\u003e\n\n\u003csection id=\"data-sheets\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRS485\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eBoard is suitable for Low power RS-485 systems, DTE\/DCE interface Packet switching, Local area networks (LNAs), Data concentration, Data multiplexers, Integrated services digital network (ISDN) and more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-board modules\u003c\/td\u003e\n\u003ctd\u003eSN65HVD12 differential line transceiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Features\u003c\/td\u003e\n\u003ctd\u003eOn-board Bias and Termination resistors with related jumpers. Simple UART communication interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Benefits\u003c\/td\u003e\n\u003ctd\u003eMeets or Exceeds the Requirements of ANSI TIA\/EIA-485-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eGPIO,UART\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003emikroBUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClick board size\u003c\/td\u003e\n\u003ctd\u003eM (42.9 x 25.4 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003ch4\u003e\u003cstrong\u003ePinout diagram\u003c\/strong\u003e\u003c\/h4\u003e\n\n\u003cp\u003eThis table shows how the pinout on \u003cstrong\u003eRS485 click 3.3V\u003c\/strong\u003e corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth colspan=\"4\"\u003e\u003ca href=\"http:\/\/www.mikroe.com\/mikrobus\/\" target=\"_blank\"\u003e\u003cimg alt=\"Mikrobus logo.png\" src=\"https:\/\/cdn.mikroe.com\/img\/mikrobus\/mikroBUS-logo-black.png\"\u003e\u003c\/a\u003e\u003c\/th\u003e\n\u003cth\u003ePin\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eAN\u003c\/td\u003e\n\u003ctd\u003ePWM\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR\/T\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReceive\/transmit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eRST\u003c\/td\u003e\n\u003ctd\u003eINT\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eCS\u003c\/td\u003e\n\u003ctd\u003eTX\u003c\/td\u003e\n\u003ctd\u003e14\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRX\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUART data receive \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eSCK\u003c\/td\u003e\n\u003ctd\u003eRX\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTX\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUART data transmit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eMISO\u003c\/td\u003e\n\u003ctd\u003eSCL\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eMOSI\u003c\/td\u003e\n\u003ctd\u003eSDA\u003c\/td\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e+3.3V\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003eNC\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGround\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eGND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eGND\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\n\u003ch4\u003e\u003cstrong\u003eJumpers and settings\u003c\/strong\u003e\u003c\/h4\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDesignator\u003c\/th\u003e\n\u003cth\u003eName\u003c\/th\u003e\n\u003cth\u003eDefault Position\u003c\/th\u003e\n\u003cth\u003eDefault Option\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ1\u003c\/td\u003e\n\u003ctd\u003ePWR. SEL.\u003c\/td\u003e\n\u003ctd\u003eLeft\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003ctd\u003eDo not touch, not selectable by user\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ2\u003c\/td\u003e\n\u003ctd\u003eBias Enable\u003c\/td\u003e\n\u003ctd\u003eON\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ3\u003c\/td\u003e\n\u003ctd\u003eBias Enable\u003c\/td\u003e\n\u003ctd\u003eON\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJ4\u003c\/td\u003e\n\u003ctd\u003eTerm.\u003c\/td\u003e\n\u003ctd\u003eON\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cbr\u003e\nIf the board is the first node of the RS485 network, all three jumpers J2-J4 should be placed. If the board is a node in the middle, all jumpers should be removed. If the board is the last node of the RS485 network, place only J4 termination jumper.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection id=\"info-downloads\"\u003e\n\u003ch4\u003e\u003cstrong\u003eDownloads\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ca href=\"http:\/\/www.mikroe.com\/mikrobus\/\" target=\"_blank\"\u003e mikroBUS™ Standard specification \u003c\/a\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/libstock.mikroe.com\/projects\/view\/246\/rs485-3-3v-click-example\" target=\"_blank\"\u003e LibStock: RS485 click 3.3V library \u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/download.mikroe.com\/documents\/datasheets\/sn65hvd12.pdf\"\u003e SN65HVD12 datasheet\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/download.mikroe.com\/documents\/add-on-boards\/click\/rs485-33v\/rs485-33v-click-schematic-v100-b.pdf\"\u003e RS485 click 3.3V schematic\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e","brand":"MikroElektronika","offers":[{"title":"Default Title","offer_id":47400901935387,"sku":"MIKROE-989","price":1889.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/3325\/0587\/products\/rs485-33v-click-thickbox_default-2WqLc9jC7eXWh4.jpg?v=1701964522","url":"https:\/\/mgsl.in\/products\/mikroe-989","provider":"MG Super Labs","version":"1.0","type":"link"}