{"product_id":"modbus-rtu-digital-i-o-rs485-board-16di-16do-8di-8do-4di-12do-12di-4do-selectable-for-arduino-esp32-esp8266-plc-smart-home","title":"Modbus RTU Digital I\/O RS485 Board – 16DI\/16DO\/8DI-8DO\/4DI-12DO\/12DI-4DO Selectable for Arduino ESP32 ESP8266 PLC Smart Home","description":"\u003cp\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-size:0px;overflow:hidden\"\u003e\n \u003cbr\u003e\n \u003cdiv\u003e\n  \u003cbr\u003e\n  \u003cbr\u003e\n  R4IOI16 is a 16-channel multi-function RS485 IO core board developed and produced by eletechsup. Through register configuration or jumper selection, it can expand multiple DI-DO modes, and the 2.54MM pin header terminal can be easily embedded in your IO expansion board system.\n  \u003cbr\u003e\n  \u003cbr\u003e\n  R4IOI16 is a 16-channel multi-function RS485 IO core board developed and produced by eletechsup. Through register configuration or jumper selection, it can expand multiple DI-DO modes, and the 2.54MM pin header terminal can be easily embedded in your IO expansion board system.\n  \u003cbr\u003e\n \u003c\/div\u003e\n \u003cbr\u003e\n \u003cdiv style=\"color:rgb(0, 0, 0)\"\u003e\n  \u003cbr\u003e\n  \u003cdiv style=\"font-size:14pt;color:rgb(255, 0, 0)\"\u003e\n   \u003cbr\u003e\n   \u003cdiv style=\"font-size:medium;color:rgb(0, 0, 0)\"\u003e\n    \u003cbr\u003e\n    \u003cdiv style=\"font-size:19px\"\u003e\n     \u003cbr\u003e\n     \u003cdiv style=\"line-height:normal\"\u003e\n      \u003cbr\u003e\n      \u003cdiv style=\"font-size:19px;line-height:normal;color:rgb(0, 0, 0)\"\u003e\n       \u003cbr\u003e\n       \u003cdiv style=\"font-size:medium\"\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\u003cspan style=\"font-family:arial, helvetica, sans-serif\"\u003e\u003cspan style=\"font-size:18px\"\u003e1 Power supply1: DC 6-25V(anti-reverse);Power supply2: DC 4-5V(reverse connection prohibited)\u003cbr\u003e\u003cbr\u003e\n          2 Working current: 5.6MA\u003cbr\u003e\u003cbr\u003e\n          3 MODBUS RTU function codes: Write 05\/06\/15\/16, Read 01\/02\/03\u003cbr\u003e\u003cbr\u003e\n          4 Five function IO modes can be selected by jumper: 16DI\/16DO\/8DI-8DO\/4DI-12DO\/12DI-4DO\u003cbr\u003e\u003cbr\u003e\n          5 By modifying the 0X00F5\/0X00F6 register, the input and output levels (NPN\/PNP) can be switched\u003cbr\u003e\u003cbr\u003e\n          6 By setting the 0X00F3 register, you can restart when communication is abnormal.\u003cbr\u003e\u003cbr\u003e\n          7 By setting the 0X00F4 register, you can close all output ports when communication is abnormal.\u003cbr\u003e\u003cbr\u003e\n          8 Input mode: Support 3.3V\/5V TTL level input, there are two input modes of low level input (default) and high level input\u003cbr\u003e\u003cbr\u003e\n          9 Output mode: 5V TTL level, low level (default) \/ high level output\u003cbr\u003e\u003cbr\u003e\n          10 In MODBUS command mode, it can support up to 247 devices in parallel\u003cbr\u003e\u003cbr\u003e\n          11 Input port status supports query (default) and automatic reporting\u003cbr\u003e\u003cbr\u003e\n          12 Baud-Rate:1200 2400 4800 9600(default) 19200 38400 57600 115200, None\/Odd\/Even Parity\u003cbr\u003e\u003cbr\u003e\n          13 2.54MM pin header interface, easy to use Dupont wire or breadboard connection\u003cbr\u003e\u003cbr\u003e\n          14 Size: 51*26*3.8mm(Very Small)\u003cbr\u003e\n          15 Weight: 6grams(Very Light)\u003c\/span\u003e\u003c\/span\u003e\n        \u003cbr\u003e\n       \u003c\/div\u003e\n       \u003cbr\u003e\n       \u003cdiv style=\"font-size:medium\"\u003e\u003c\/div\u003e\n       \u003cbr\u003e\n      \u003c\/div\u003e\n      \u003cbr\u003e\n      \u003cdiv\u003e\n       \u003cbr\u003e\n        This board is available in pin header and non-pin header versions:\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1000\/4063\/8742\/files\/1785942265559zve_1783919724934.jpg?v=1783919729\" slate-data-type=\"image\"\u003e\n       \u003cbr\u003e\n      \u003c\/div\u003e\n      \u003cbr\u003e\n     \u003c\/div\u003e\n     \u003cbr\u003e\n     \u003cdiv\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1000\/4063\/8742\/files\/1785942266296spr_1783919725675.jpg?v=1783919728\" slate-data-type=\"image\"\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\u003cspan style=\"color:rgb(0, 0, 205)\"\u003eThis module is a multi-function board, you can select various function modes through jumpers.\u003cbr\u003e\n       The jumper uses 0603 0Ω resistor (or wire)\u003c\/span\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1000\/4063\/8742\/files\/1785942267019tkx_1783919726420.jpg?v=1783919730\" slate-data-type=\"image\"\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      Different Versions of Pin Definitions\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\u003cspan style=\"color:rgb(0, 0, 205)\"\u003eBy modifying the 0X00F5\/0X00F6 register, various input and output levels (NPN\/PNP) can be switched\u003cbr\u003e\u003cbr\u003e\n       NPN Input \u0026amp; NPN Output(Register 0X00F5=0,0X00F6=0,Default)\u003cbr\u003e\n       PNP Input \u0026amp; NPN Output(Register 0X00F5=1,0X00F6=0)\u003cbr\u003e\n       NPN Input \u0026amp; PNP Output(Register 0X00F5=0,0X00F6=1)\u003cbr\u003e\n       PNP Input \u0026amp; PNP Output(Register 0X00F5=1,0X00F6=1)\u003c\/span\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1000\/4063\/8742\/files\/1785942267837jct_1783919727153.jpg?v=1783919730\" slate-data-type=\"image\"\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1000\/4063\/8742\/files\/1785942268456skz_1783919727816.jpg?v=1783919731\" slate-data-type=\"image\"\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n      \u003cbr\u003e\n     \u003c\/div\u003e\n     \u003cbr\u003e\n     \u003cdiv style=\"line-height:normal\"\u003e\n      \u003cbr\u003e\n      \u003cdiv style=\"font-size:medium\"\u003e\n       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       \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n       \u003c\/div\u003e\n       \u003cbr\u003e\n       \u003cdiv\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n       \u003c\/div\u003e\n       \u003cbr\u003e\n       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\u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n       \u003c\/div\u003e\n       \u003cbr\u003e\n       \u003cdiv\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n       \u003c\/div\u003e\n       \u003cbr\u003e\n      \u003c\/div\u003e\n      \u003cbr\u003e\n      \u003cdiv style=\"font-size:medium\"\u003e\u003c\/div\u003e\n      \u003cbr\u003e\n      \u003cdiv style=\"font-size:medium\"\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n       \u003cbr\u003e\n      \u003c\/div\u003e\n      \u003cbr\u003e\n      \u003cdiv style=\"font-size:medium\"\u003e\n       \u003cbr\u003e\n       \u003cdiv\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n        \u003cbr\u003e\n       \u003c\/div\u003e\n       \u003cbr\u003e\n      \u003c\/div\u003e\n      \u003cbr\u003e\n     \u003c\/div\u003e\n     \u003cbr\u003e\n    \u003c\/div\u003e\n    \u003cbr\u003e\n   \u003c\/div\u003e\n   \u003cbr\u003e\n  \u003c\/div\u003e\n  \u003cbr\u003e\n \u003c\/div\u003e\n \u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"Eletechsup","offers":[{"title":"12DI-4DO \/ Only Board","offer_id":51551812288790,"sku":"R4IOI16_12DI-4DO","price":9.99,"currency_code":"USD","in_stock":true},{"title":"16DI \/ Only Board","offer_id":51551812321558,"sku":"R4IOI16_16DI","price":9.99,"currency_code":"USD","in_stock":true},{"title":"16DO \/ Only Board","offer_id":51551812354326,"sku":"R4IOI16_16DO","price":9.99,"currency_code":"USD","in_stock":true},{"title":"4DI-12DO \/ Only Board","offer_id":51551812387094,"sku":"R4IOI16_4DI-12DO","price":9.99,"currency_code":"USD","in_stock":true},{"title":"8DI-8DO \/ Only Board","offer_id":51551812419862,"sku":"R4IOI16_8DI-8DO","price":9.99,"currency_code":"USD","in_stock":true},{"title":"12DI-4DO \/ With Pin","offer_id":51551812452630,"sku":"R4IOI16_PIN_12DI-4DO","price":9.99,"currency_code":"USD","in_stock":true},{"title":"16DI \/ With 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