UART 125Khz RFID Reader Module RDM6300
The RDM6300 (HW-205 v4.2) is a compact 125KHz RFID reader module designed for reading EM4100 compatible tags. It connects easily to Arduino or any MCU via UART/TTL serial at 9600bps. Powered by 5V DC with low consumption under 50mA, it offers a reliable reading range of 20–50mm. Ideal for access control, attendance systems, and security projects, this module combines an advanced RF receiving circuit with an efficient decoding algorithm for fast, accurate card identification
وحدة RDM6300 (HW-205 v4.2) هي قارئ بطاقات RFID بتردد 125 كيلوهرتز صغيرة الحجم، مصممة لقراءة البطاقات المتوافقة مع EM4100. تتصل بسهولة مع Arduino أو أي متحكم دقيق عبر منفذ UART/TTL التسلسلي بسرعة 9600 بود. تعمل بجهد 5 فولت باستهلاك منخفض أقل من 50 مللي أمبير، وتوفر مدى قراءة موثوق من 20 إلى 50 مم. مثالية لأنظمة التحكم بالدخول والحضور والانصراف ومشاريع الأمان، تجمع بين دائرة استقبال متقدمة وخوارزمية فك تشفير فعّالة لتحديد سريع ودقيق للبطاقات.
The RDM6300 125KHz RFID Reader Module is a popular and reliable mini-module designed for reading codes from 125KHz / 134.2KHz compatible read-only tags. Built around an advanced RF receiving circuit and an embedded MCU, the module uses a high-efficiency decoding algorithm to capture data from EM4100 and all compatible cards quickly and accurately.
The module is extremely easy to use: simply connect its serial port to your Arduino or any microcontroller. Once powered up, whenever an RFID card enters the reading range, the module automatically sends the unique card ID to the host MCU via UART. This makes it ideal for hobbyists, students, and developers building DIY access control or identification projects.
You can pair this module with a relay shield on your Arduino to build a simple but effective door keeper / electronic lock system, or integrate it into larger applications such as attendance tracking, asset management, and personal identification systems.
Specifications
- Model: RDM6300 (HW-205 v4.2)
- Operating Frequency: 125KHz
- Supported Cards: EM4100, TK4100, EM4102, EM4200 or compatible read-only tags
- Communication Interface: TTL / RS232 / UART
- Baud Rate: 9600bps
- Power Supply: 5V DC
- Current Consumption: < 50mA
- Reading Range: 20mm to 50mm
- Coil Dimensions: 46 x 35 x 3 mm
- Board Dimensions: 38.5 x 19 x 9 mm
- Operating Temperature: -10°C to +70°C
- Storage Temperature: -20°C to +80°C
- Humidity: 0% to 95%
Applications
- Access Control Systems — office, home, and warehouse door entry
- Attendance & Time Tracking — schools, gyms, and workplaces
- Personal Identification — employee or student ID verification
- Anti-Forgery Systems — verifying authenticity of products or documents
- Asset & Inventory Management — tagging and tracking equipment
- Hotel Room & Locker Access — keyless entry solutions
- Interactive Toys & Educational Kits — RFID-triggered actions and games
- Production & Manufacturing Control — tracking items along assembly lines
- DIY Arduino Projects — smart locks, automated drawers, and IoT prototypes
- Library & Membership Systems — quick check-in/check-out