13.56 MHz RFID Reader-Writer
Overview
The 13.56 MHz RFID Reader-Writer is a high-frequency Radio-Frequency Identification (RFID) device designed for reading and writing data to RFID tags operating at a frequency of 13.56 MHz. This component is suitable for various applications, including inventory management, access control, and supply chain tracking.
Functionality
| The 13.56 MHz RFID Reader-Writer performs the following functions |
Key Features
13.56 MHz (HF)
| Read/Write distance | Up to 10 cm (4 inches) depending on the tag type and environment |
Serial communication interface (UART, SPI, or I2C)
USB interface (optional)
Ethernet interface (optional)
Supports various RFID tag types, including ISO/IEC 14443A, ISO/IEC 14443B, and ISO/IEC 15693
Compatible with tags from various manufacturers
Supports encryption and decryption for secure data transfer
Implements anti-collision protocols to prevent data corruption
-20C to 70C (-4F to 158F)
-40C to 85C (-40F to 185F)
Up to 80% relative humidity
5V DC (10%)
Typically < 200 mA
40 mm x 30 mm x 15 mm (1.57 inches x 1.18 inches x 0.59 inches)
Approximately 20 grams
Plastic or metal (depending on the specific model)
LED indicators for power, communication, and error status
Internal antenna for improved RFID signal reception
Supports external antenna connections for customized applications
Applications
| The 13.56 MHz RFID Reader-Writer is suitable for various applications, including |
Inventory management and tracking
Access control and authentication
Supply chain management
Smart home and building automation
Healthcare and medical applications
Technical Specifications
For a comprehensive list of technical specifications, please refer to the datasheet provided by the manufacturer.
Warranty and Support
The 13.56 MHz RFID Reader-Writer is backed by a manufacturer's warranty and dedicated customer support. For more information, please contact the manufacturer or authorized distributor.
13.56 MHz RFID Reader-Writer DocumentationOverviewThe 13.56 MHz RFID Reader-Writer is a compact, high-frequency RFID module capable of reading and writing to ISO/IEC 14443A and ISO/IEC 14443B compliant tags. This module is ideal for applications requiring high-speed data transfer, security, and reliability.Technical SpecificationsOperating Frequency: 13.56 MHz
Communication Protocol: ISO/IEC 14443A and ISO/IEC 14443B
Reading Distance: Up to 10 cm (3.9 in)
Antenna Type: Internal
Interface: UART, SPI, I2C
Power Supply: 3.3V - 5V
Dimensions: 40mm x 30mm x 10mm (1.57 in x 1.18 in x 0.39 in)Code Examples### Example 1: Reading a Tag using UART Interface (Arduino)This example demonstrates how to use the 13.56 MHz RFID Reader-Writer with an Arduino board to read a tag's unique identifier (UID).```c
#include <SoftwareSerial.h>#define RFID_RX 2 // UART RX pin
#define RFID_TX 3 // UART TX pinSoftwareSerial RFID(RFID_RX, RFID_TX);void setup() {
Serial.begin(9600);
RFID.begin(9600);
}void loop() {
char buffer[20];
int bytesRead;// Request tag presence
RFID.print("T");
bytesRead = RFID.readBytes(buffer, 20);if (bytesRead > 0) {
// Tag detected, read UID
RFID.print("R");
bytesRead = RFID.readBytes(buffer, 20);if (bytesRead > 0) {
Serial.print("Tag UID: ");
Serial.println(buffer);
} else {
Serial.println("Failed to read tag UID");
}
} else {
Serial.println("No tag detected");
}delay(1000);
}
```### Example 2: Writing to a Tag using SPI Interface (Raspberry Pi)This example demonstrates how to use the 13.56 MHz RFID Reader-Writer with a Raspberry Pi to write a string to a tag.```python
import spidev
import time# Initialize SPI
spi = spidev.SpiDev()
spi.open(0, 0)
spi.max_speed_hz = 1000000# Define SPI commands
CMD_WRITE = 0x02
CMD_TAG_PRESENT = 0x04def write_tag(data):
# Request tag presence
spi.xfer([CMD_TAG_PRESENT])
response = spi.xfer([0x00])
if response[0] == 0x01:
# Tag detected, write data
spi.xfer([CMD_WRITE, len(data)] + list(data))
response = spi.xfer([0x00])
if response[0] == 0x01:
print("Data written successfully")
else:
print("Failed to write data")
else:
print("No tag detected")# Write a string to the tag
write_tag(b"Hello, RFID!")time.sleep(1)
```### Example 3: Authenticating a Tag using I2C Interface (ESP32)This example demonstrates how to use the 13.56 MHz RFID Reader-Writer with an ESP32 board to authenticate a tag using a password.```c
#include <Wire.h>#define RFID_I2C_ADDRESS 0x28void setup() {
Serial.begin(9600);
Wire.begin();
}void loop() {
byte password[] = {0x01, 0x02, 0x03, 0x04};
byte response[5];// Authenticate tag
Wire.beginTransmission(RFID_I2C_ADDRESS);
Wire.write(0x01); // Authenticate command
Wire.write(password, 4);
Wire.endTransmission();Wire.requestFrom(RFID_I2C_ADDRESS, 5);
for (int i = 0; i < 5; i++) {
response[i] = Wire.read();
}if (response[0] == 0x01) {
Serial.println("Tag authenticated successfully");
} else {
Serial.println("Authentication failed");
}delay(1000);
}
```Note: These examples are for illustrative purposes only and may require modifications to work with your specific setup. Please consult the datasheet and documentation provided with your RFID Reader-Writer module for more information.