4 Pieces 125kHz RFID EM4305 T5577 Adhesive Coin Rewritable Card, Diameter 25mm

Description

What it is

These 4 pieces of adhesive RFID cards are based on the EM4305 T5577 chip and operate at a frequency of 125kHz. They have a diameter of 25mm and are adhesive, making them easy to apply to smooth surfaces.

Features

• Operating Frequency: 125kHz
• Chip: EM4305 T5577
• Diameter: 25mm
• Number of Pieces: 4
• Type: Rewritable card

What it is for

Typical use cases include creating room access systems, presence counters, or any other project that requires RFID detection. These cards are compatible with most RFID modules and can be used with Arduino or ESP to develop security and access projects.

Tutorial: How to use RFID EM4305 T5577 Adhesive

This RFID module is ideal for access security projects, presence counters, or any other project that requires RFID detection. It is suitable for beginner and intermediate makers who want to start with RFID.

What you need

• EM4305 T5577 RFID Card
• Arduino
• RC522 RFID Module
• Jumper wire
• Arduino IDE software

Steps

1. Connect the RC522 module to your Arduino using jumper wires.
2. Check the connections between Arduino and RC522 in the RC522 module datasheet.
3. Install the MFRC522 library in your Arduino IDE.
4. Upload the MFRC522_Reader example sketch to your Arduino.
5. Bring the RFID card close to the RC522 module to read the data.
6. Modify the sketch to fit your project.
7. Check the datasheet to set up RFID card programming.
8. Try reading and writing data to the RFID card.

Example code

/*
#include <MFRC522.h>

MFRC522 mfrc522(SS_PIN, RST_PIN);  // definisci SS_PIN e RST_PIN nel tuo progetto

void setup() {
  Serial.begin(115200);
  mfrc522.PCD_Init();
}

void loop() {
  // codice di lettura e scrittura dati
}
*/

Mini project

Create an access system for a room that detects when a person enters or exits using an RFID card. Use an LED to signal access.

Common mistakes

• Do not correctly connect the pins of the RC522 module.
• Do not install the MFRC522 library.
• Do not verify the RFID card data.
• Do not test the system before implementing it.

Recommended accessories

• RC522 module
• Backup RFID cards
• Arduino Uno
• LED and resistor

Frequently asked questions

How can I customize the RFID card?
Check the datasheet to set up RFID card programming.

What is the maximum detection range?
Check the datasheet for the maximum detection range.

Can I use other RFID cards?
Check the datasheet for compatibility with other RFID cards.