{"id":6551,"date":"2026-07-16T23:52:15","date_gmt":"2026-07-16T23:52:15","guid":{"rendered":"https:\/\/mastersolarbd.com\/?post_type=product&#038;p=6551"},"modified":"2026-07-17T18:24:15","modified_gmt":"2026-07-17T18:24:15","slug":"rfid-reader-module-rdm6300-125khz-uart-key-control-system-for-arduino","status":"publish","type":"product","link":"https:\/\/mastersolarbd.com\/bn\/\u09aa\u09a3\u09cd\u09af\/rfid-reader-module-rdm6300-125khz-uart-key-control-system-for-arduino\/","title":{"rendered":"RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino"},"content":{"rendered":"<p>RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino<br \/>\nRDM6300 RFID Reader Module Arduino UART 125Khz EM4100.<br \/>\nRDM6300 125KHz card mini-module is designed for reading code from 125KHz\/ 134.2KHz card compatible read-only tags and read\/write card . It can be applied in office\/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc.<br \/>\nRDM6300 Series non contact RFID module, use the advanced RF receiving circuit and embedded MCU design, combing with high efficient decoding algorithm, to finish the data receive of EM4100 and all the compatible cards. This is a very popular RFID card read module for arduino users, it can read 125K EM4100 series RFID card.<br \/>\nThis module is easy to use, serial port connect to arduino MCU after power up, when RFID card enter into card reading range, this module will send the card number to arduino by UART You can further connect relay arduino shield to your arduino in order to enable the simple door keeper controlling system.<br \/>\n Frequency: 125kHz<br \/>\n Supported card: EM\/TK 4100, EM\/TK4102, EM4200 or compatible<br \/>\n Baud rate:: 9600bps (TTL RS232 format)<br \/>\n Power: DC5V<br \/>\n Current consumption: &lt;50mA<br \/>\n Size: 38.5 x 19 x 10mm<br \/>\n Weight approx 7-8g<br \/>\nRDM6300 125KHz card mini-module is designed for reading code from 125KHz\/ 134.2KHz card compatible read-only tags and read\/write card . It can be applied in office\/home security, personal identification, access control, anti-forgery, interactive toy and production control systems etc.<br \/>\nRDM6300 Series non contact RFID module, use the advanced RF receiving circuit and embedded MCU design, combing with high efficient decoding algorithm, to finish the data receive of EM4100 and all the compatible cards. This is a very popular RFID card read module for arduino users, it can read 125K EM4100 series RFID card.<br \/>\nThis module is easy to use, serial port connect to arduino MCU after power up, when RFID card enter into card reading range, this module will send the card number to arduino by UART You can further connect relay arduino shield to your arduino in order to enable the simple door keeper controlling system.<br \/>\nPackage Contents<br \/>\n 100% Brand New 1 xUART 125Khz EM4100 RFID Card ID Reader Module RDM6300 (RDM630) For Arduino<\/p>","protected":false},"excerpt":{"rendered":"<p>RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino RDM6300 RFID Reader Module Arduino UART 125Khz EM4100. RDM6300 125KHz card mini-module is designed for reading code from 125KHz\/ 134.2KHz card compatible read-only tags and read\/write card . It can be applied in office\/home security, personal identification, access control, anti-forgery, interactive toy and production [&hellip;]<\/p>\n","protected":false},"featured_media":6593,"comment_status":"open","ping_status":"closed","template":"","meta":{"googlesitekit_rrm_CAowh6rGDA:productID":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[327],"product_tag":[],"class_list":["post-6551","product","type-product","status-publish","has-post-thumbnail","product_cat-communication-modules-wifi-bluetooth-gsm-gps-rfid","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino - Master Solar BD \u09ae\u09be\u09b8\u09cd\u099f\u09be\u09b0 \u09b8\u09cb\u09b2\u09be\u09b0 \u09ac\u09bf\u09a1\u09bf<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mastersolarbd.com\/bn\/\u09aa\u09a3\u09cd\u09af\/rfid-reader-module-rdm6300-125khz-uart-key-control-system-for-arduino\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino - Master Solar BD \u09ae\u09be\u09b8\u09cd\u099f\u09be\u09b0 \u09b8\u09cb\u09b2\u09be\u09b0 \u09ac\u09bf\u09a1\u09bf\" \/>\n<meta property=\"og:description\" content=\"RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino RDM6300 RFID Reader Module Arduino UART 125Khz EM4100. RDM6300 125KHz card mini-module is designed for reading code from 125KHz\/ 134.2KHz card compatible read-only tags and read\/write card . It can be applied in office\/home security, personal identification, access control, anti-forgery, interactive toy and production [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mastersolarbd.com\/bn\/\u09aa\u09a3\u09cd\u09af\/rfid-reader-module-rdm6300-125khz-uart-key-control-system-for-arduino\/\" \/>\n<meta property=\"og:site_name\" content=\"Master Solar BD \u09ae\u09be\u09b8\u09cd\u099f\u09be\u09b0 \u09b8\u09cb\u09b2\u09be\u09b0 \u09ac\u09bf\u09a1\u09bf\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/p\/Master-Solar-BD----100095014707096\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-17T18:24:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mastersolarbd.com\/wp-content\/uploads\/2025\/08\/70bcc3c7-39bd-4f53-a8ca-85677e7ac57c.png\" \/>\n\t<meta property=\"og:image:width\" content=\"631\" \/>\n\t<meta property=\"og:image:height\" content=\"607\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 \u09ae\u09bf\u09a8\u09bf\u099f\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino - Master Solar BD \u09ae\u09be\u09b8\u09cd\u099f\u09be\u09b0 \u09b8\u09cb\u09b2\u09be\u09b0 \u09ac\u09bf\u09a1\u09bf","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mastersolarbd.com\/bn\/\u09aa\u09a3\u09cd\u09af\/rfid-reader-module-rdm6300-125khz-uart-key-control-system-for-arduino\/","og_locale":"en_US","og_type":"article","og_title":"RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino - Master Solar BD \u09ae\u09be\u09b8\u09cd\u099f\u09be\u09b0 \u09b8\u09cb\u09b2\u09be\u09b0 \u09ac\u09bf\u09a1\u09bf","og_description":"RFID Reader Module RDM6300 125kHz UART Key Control System For Arduino RDM6300 RFID Reader Module Arduino UART 125Khz EM4100. RDM6300 125KHz card mini-module is designed for reading code from 125KHz\/ 134.2KHz card compatible read-only tags and read\/write card . It can be applied in office\/home security, personal identification, access control, anti-forgery, interactive toy and production [&hellip;]","og_url":"https:\/\/mastersolarbd.com\/bn\/\u09aa\u09a3\u09cd\u09af\/rfid-reader-module-rdm6300-125khz-uart-key-control-system-for-arduino\/","og_site_name":"Master Solar BD \u09ae\u09be\u09b8\u09cd\u099f\u09be\u09b0 \u09b8\u09cb\u09b2\u09be\u09b0 \u09ac\u09bf\u09a1\u09bf","article_publisher":"https:\/\/www.facebook.com\/p\/Master-Solar-BD----100095014707096\/","article_modified_time":"2026-07-17T18:24:15+00:00","og_image":[{"width":631,"height":607,"url":"https:\/\/mastersolarbd.com\/wp-content\/uploads\/2025\/08\/70bcc3c7-39bd-4f53-a8ca-85677e7ac57c.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 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