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EM-18 RFID Reader Module | 125KHz UART RFID Card Reader for Arduino, ESP32, Raspberry Pi & Access Control Projects
EM-18 RFID Reader Module | 125KHz UART RFID Card Reader for Arduino, ESP32, Raspberry Pi & Access Control Projects
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The EM-18 RFID Reader Module is a compact and reliable 125KHz RFID reader designed for contactless identification and access control applications. It supports EM4100-compatible RFID cards and key tags, making it an excellent choice for security systems, attendance machines, door access control, automation, and embedded electronics projects.
The module communicates through a UART (TTL Serial) interface, allowing seamless integration with Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, AVR, and other microcontrollers. Simply present a compatible RFID card or tag near the reader, and the unique ID is transmitted to the controller for authentication or processing.
With its fast response, stable performance, and low power consumption, the EM-18 RFID Reader Module is widely used in educational, industrial, and commercial applications.
Specifications
| Parameter | Specification |
|---|---|
| Product Name | EM-18 RFID Reader Module |
| Module Type | RFID Reader Module |
| Operating Frequency | 125KHz |
| Supported RFID Cards | EM4100 Compatible RFID Cards & Key Tags |
| Communication Interface | UART (TTL Serial) |
| Output Format | Serial Data |
| Operating Voltage | 5V DC |
| Operating Current | Typically < 70mA |
| Reading Distance | Up to 8–12 cm (Depending on Tag & Environment) |
| Baud Rate | 9600 bps |
| LED Indicator | Yes |
| Buzzer | Built-in |
| Antenna | Integrated |
| Mounting | PCB Module |
| Operating Temperature | -20°C to +70°C |
| Applications | Access Control, Attendance, Automation, Security Systems |
Key Features
- Supports 125KHz RFID technology
- Compatible with EM4100 RFID cards and key tags
- UART TTL serial communication
- Fast and accurate card detection
- Built-in LED status indicator
- Integrated buzzer for scan confirmation
- Reading distance up to approximately 8–12 cm
- Low power consumption
- Easy interface with popular microcontrollers
- Ideal for embedded systems and automation projects
Applications
- RFID-based attendance systems
- Door access control
- Smart locks
- Home automation
- Arduino projects
- ESP32 and ESP8266 projects
- Raspberry Pi projects
- IoT applications
- Security systems
- Asset tracking
- User authentication
- Industrial automation
- Educational electronics projects
- Embedded system development
Package Includes
- 1 × EM-18 RFID Reader Module
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