{"id":1005,"date":"2025-04-09T20:33:58","date_gmt":"2025-04-09T15:03:58","guid":{"rendered":"https:\/\/vihaaniotgateway.in\/?post_type=product&#038;p=1005"},"modified":"2026-03-17T10:27:01","modified_gmt":"2026-03-17T04:57:01","slug":"em18-rfid-reader-module-125khz","status":"publish","type":"product","link":"https:\/\/vihaaniotgateway.in\/index.php\/product\/em18-rfid-reader-module-125khz\/","title":{"rendered":"EM-18 RFID Reader Module \u2013 125kHz Contactless Reader for Embedded Systems"},"content":{"rendered":"<h2 class=\"\" data-start=\"201\" data-end=\"277\">EM-18 RFID Reader Module \u2013 125kHz Contactless Reader for Embedded Systems<\/h2>\n<p class=\"\" data-start=\"279\" data-end=\"609\">Upgrade your embedded or IoT project with the <strong data-start=\"325\" data-end=\"353\">EM-18 RFID Reader Module<\/strong>, a powerful and compact solution for 125kHz RFID-based applications. Whether you&#8217;re developing <strong data-start=\"449\" data-end=\"471\">attendance systems<\/strong>, <strong data-start=\"473\" data-end=\"501\">access control solutions<\/strong>, or <strong data-start=\"506\" data-end=\"535\">smart automation projects<\/strong>, the EM-18 offers reliable performance with a simple integration process.<\/p>\n<h3 class=\"\" data-start=\"611\" data-end=\"634\">\ud83d\udd27 Product Overview<\/h3>\n<p class=\"\" data-start=\"636\" data-end=\"1013\">The <strong data-start=\"640\" data-end=\"656\">EM-18 module<\/strong> is a low-cost RFID reader that operates at a frequency of 125kHz. It can detect RFID tags within a range of up to <strong data-start=\"771\" data-end=\"780\">10 cm<\/strong>, making it ideal for applications where contactless identification is required. This module reads the unique ID of any RFID tag in proximity and transmits it using <strong data-start=\"945\" data-end=\"985\">serial communication (UART or RS232)<\/strong> at a baud rate of 9600 bps.<\/p>\n<p class=\"\" data-start=\"1015\" data-end=\"1223\">If you\u2019re building a <strong data-start=\"1036\" data-end=\"1058\">custom IoT gateway<\/strong> or working with <strong data-start=\"1075\" data-end=\"1122\">microcontrollers like Arduino, Raspberry Pi<\/strong>, or <strong data-start=\"1127\" data-end=\"1150\">ARM-based platforms<\/strong>, the EM-18 integrates seamlessly into your workflow with minimal wiring.<\/p>\n<hr class=\"\" data-start=\"1225\" data-end=\"1228\" \/>\n<h3 class=\"\" data-start=\"1230\" data-end=\"1270\">\ud83d\udd0d Key Features of EM-18 RFID Reader<\/h3>\n<ul data-start=\"1272\" data-end=\"1567\">\n<li class=\"\" data-start=\"1272\" data-end=\"1319\">\n<p class=\"\" data-start=\"1274\" data-end=\"1319\"><strong data-start=\"1274\" data-end=\"1288\">Frequency:<\/strong> 125kHz (supports EM4100 cards)<\/p>\n<\/li>\n<li class=\"\" data-start=\"1320\" data-end=\"1370\">\n<p class=\"\" data-start=\"1322\" data-end=\"1370\"><strong data-start=\"1322\" data-end=\"1349\">Communication Protocol:<\/strong> UART (TTL) and RS232<\/p>\n<\/li>\n<li class=\"\" data-start=\"1371\" data-end=\"1406\">\n<p class=\"\" data-start=\"1373\" data-end=\"1406\"><strong data-start=\"1373\" data-end=\"1387\">Baud Rate:<\/strong> 9600 bps (default)<\/p>\n<\/li>\n<li class=\"\" data-start=\"1407\" data-end=\"1437\">\n<p class=\"\" data-start=\"1409\" data-end=\"1437\"><strong data-start=\"1409\" data-end=\"1431\">Operating Voltage:<\/strong> 5V DC<\/p>\n<\/li>\n<li class=\"\" data-start=\"1438\" data-end=\"1474\">\n<p class=\"\" data-start=\"1440\" data-end=\"1474\"><strong data-start=\"1440\" data-end=\"1460\">Detection Range:<\/strong> Up to 8\u201310 cm<\/p>\n<\/li>\n<li class=\"\" data-start=\"1475\" data-end=\"1503\">\n<p class=\"\" data-start=\"1477\" data-end=\"1503\"><strong data-start=\"1477\" data-end=\"1495\">Response Time:<\/strong> &lt; 100ms<\/p>\n<\/li>\n<li class=\"\" data-start=\"1504\" data-end=\"1567\">\n<p class=\"\" data-start=\"1506\" data-end=\"1567\"><strong data-start=\"1506\" data-end=\"1527\">Easy Plug &amp; Play:<\/strong> Compatible with most development boards<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"1569\" data-end=\"1572\" \/>\n<h3 class=\"\" data-start=\"1574\" data-end=\"1593\">\u2699\ufe0f Applications<\/h3>\n<p class=\"\" data-start=\"1595\" data-end=\"1630\">The EM-18 module is widely used in:<\/p>\n<ul data-start=\"1632\" data-end=\"2129\">\n<li class=\"\" data-start=\"1632\" data-end=\"1712\">\n<p class=\"\" data-start=\"1634\" data-end=\"1712\"><strong data-start=\"1634\" data-end=\"1661\">RFID Attendance Systems<\/strong> \u2013 Track employee or student presence effortlessly.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1713\" data-end=\"1780\">\n<p class=\"\" data-start=\"1715\" data-end=\"1780\"><strong data-start=\"1715\" data-end=\"1741\">Access Control Systems<\/strong> \u2013 Secure entry points using RFID tags.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1781\" data-end=\"1857\">\n<p class=\"\" data-start=\"1783\" data-end=\"1857\"><strong data-start=\"1783\" data-end=\"1805\">Library Management<\/strong> \u2013 Use RFID cards to manage book issues and returns.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1858\" data-end=\"1974\">\n<p class=\"\" data-start=\"1860\" data-end=\"1974\"><strong data-start=\"1860\" data-end=\"1876\">IoT Projects<\/strong> \u2013 Integrate with your <strong data-start=\"1899\" data-end=\"1944\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"1901\" data-end=\"1942\">Vihaan IoT Gateway<\/a><\/strong> for smart device recognition.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1975\" data-end=\"2053\">\n<p class=\"\" data-start=\"1977\" data-end=\"2053\"><strong data-start=\"1977\" data-end=\"2001\">Inventory Management<\/strong> \u2013 Tag and track assets across warehouses or retail.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2054\" data-end=\"2129\">\n<p class=\"\" data-start=\"2056\" data-end=\"2129\"><strong data-start=\"2056\" data-end=\"2080\">Time Logging Systems<\/strong> \u2013 Record working hours via contactless scanning.<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"2131\" data-end=\"2251\">For a complete solution, check out our <strong data-start=\"2170\" data-end=\"2217\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"2172\" data-end=\"2215\">RFID Tags &amp; Cards<\/a><\/strong> compatible with the EM-18 module.<\/p>\n<hr class=\"\" data-start=\"2253\" data-end=\"2256\" \/>\n<h3 class=\"\" data-start=\"2258\" data-end=\"2291\">\ud83d\udd0c Connectivity &amp; Integration<\/h3>\n<p class=\"\" data-start=\"2293\" data-end=\"2670\">The module outputs data through a simple 9600-baud serial connection. Connect it to your <strong data-start=\"2382\" data-end=\"2393\">Arduino<\/strong>, <strong data-start=\"2395\" data-end=\"2404\">ESP32<\/strong>, or <strong data-start=\"2409\" data-end=\"2435\">FreeBSD-powered system<\/strong> using the TTL pins, and you\u2019ll be scanning RFID tags in no time. It&#8217;s the perfect match for projects involving <strong data-start=\"2547\" data-end=\"2601\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"2549\" data-end=\"2599\">FreeBSD IoT deployments<\/a><\/strong> or custom <strong data-start=\"2612\" data-end=\"2669\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"2614\" data-end=\"2667\">ARM-based embedded hardware<\/a><\/strong>.<\/p>\n<hr class=\"\" data-start=\"2672\" data-end=\"2675\" \/>\n<h3 class=\"\" data-start=\"2677\" data-end=\"2700\">\ud83d\udce6 Package Includes<\/h3>\n<ul data-start=\"2702\" data-end=\"2779\">\n<li class=\"\" data-start=\"2702\" data-end=\"2779\">\n<p class=\"\" data-start=\"2704\" data-end=\"2779\">1x EM-18 RFID Reader Module<br data-start=\"2731\" data-end=\"2734\" \/><em data-start=\"2734\" data-end=\"2779\">(Note: RFID tags or cards sold separately.)<\/em><\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"2781\" data-end=\"2784\" \/>\n<h3 class=\"\" data-start=\"2786\" data-end=\"2828\">\ud83d\udd10 Why Choose EM-18 for Your Projects?<\/h3>\n<ul data-start=\"2830\" data-end=\"3120\">\n<li class=\"\" data-start=\"2830\" data-end=\"2915\">\n<p class=\"\" data-start=\"2832\" data-end=\"2915\"><strong data-start=\"2832\" data-end=\"2855\">Trusted Performance<\/strong> \u2013 Used in thousands of commercial and educational projects.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2916\" data-end=\"2969\">\n<p class=\"\" data-start=\"2918\" data-end=\"2969\"><strong data-start=\"2918\" data-end=\"2934\">Compact Size<\/strong> \u2013 Easily fits in tight enclosures.<\/p>\n<\/li>\n<li class=\"\" data-start=\"2970\" data-end=\"3044\">\n<p class=\"\" data-start=\"2972\" data-end=\"3044\"><strong data-start=\"2972\" data-end=\"2995\">Great Compatibility<\/strong> \u2013 Supports almost all microcontroller platforms.<\/p>\n<\/li>\n<li class=\"\" data-start=\"3045\" data-end=\"3120\">\n<p class=\"\" data-start=\"3047\" data-end=\"3120\"><strong data-start=\"3047\" data-end=\"3069\">Affordable Pricing<\/strong> \u2013 Perfect for DIY and large-scale implementations.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"3122\" data-end=\"3125\" \/>\n<h3 class=\"\" data-start=\"3127\" data-end=\"3150\">\ud83d\udcda Related Products<\/h3>\n<ul data-start=\"3152\" data-end=\"3329\">\n<li class=\"\" data-start=\"3152\" data-end=\"3208\">\n<p class=\"\" data-start=\"3154\" data-end=\"3208\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"3154\" data-end=\"3206\">RFID Key Fobs \u2013 125kHz<\/a><\/p>\n<\/li>\n<li class=\"\" data-start=\"3209\" data-end=\"3267\">\n<p class=\"\" data-start=\"3211\" data-end=\"3267\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"3211\" data-end=\"3265\">USB to TTL Converter<\/a><\/p>\n<\/li>\n<li class=\"\" data-start=\"3268\" data-end=\"3329\">\n<p class=\"\" data-start=\"3270\" data-end=\"3329\"><a class=\"cursor-pointer\" rel=\"noopener\" data-start=\"3270\" data-end=\"3329\">Vihaan IoT Gateway \u2013 Starter Kit<\/a><\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"3336\" data-end=\"3480\">\n","protected":false},"excerpt":{"rendered":"<p>Compact 125kHz RFID reader module with UART\/RS232 output, ideal for IoT, access control, and attendance systems. Plug &amp; play with Arduino, Raspberry Pi.<\/p>\n","protected":false},"featured_media":1006,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[19,41,73],"product_tag":[],"class_list":{"0":"post-1005","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-electronics","7":"product_cat-rfid","8":"product_cat-sensors-and-modules","10":"first","11":"outofstock","12":"sale","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/product\/1005","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/comments?post=1005"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/media\/1006"}],"wp:attachment":[{"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/media?parent=1005"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/product_brand?post=1005"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/product_cat?post=1005"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/vihaaniotgateway.in\/index.php\/wp-json\/wp\/v2\/product_tag?post=1005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}