Grove NFC Tag

Grove - NFC Tag is a highly integrated Near Field Communication Tag module,this module is I2C interface,which base on M24LR64E-R,M24LR64E-R have a 64-bit unique identifier and 64 -Kbit EEPROM.Grove - NFC Tag attach an independent PCB antenna which can easily stretch out of any enclosure you use, leaving more room for you to design the exterior of your project.


  • Working Voltage:5V or 3V3

  • Working Current<1mA

  • Effective range<2cm

  • Serve for contactless communication at 13.56MHz

  • ISO 15693 and ISO 18000-3 mode 1 compatible

  • 64-bit unique identifier (UID)

  • Read Block & Write (32-bit blocks)

  • Grove I2C Interface

!!!Tip More details about Grove modules please refer to Grove System

Platforms Supported


Read/Write from Mobile

  1. Download NfcV-reader for Android and install it

  2. We can Read/Write it from Mobile

Control LED

  1. Hardware Installation

  1. Download NfcV-reader for Android and install it

  2. Download NFC Tag Lib, rename it to NFC_Tag_M24LR6E and put it into Arduino's library .

  3. Open Arduino IDE. If Arduino IDE is already opened, restart it.

  4. In Arduino IDE, click menus: File -> Example -> NFC_Tag_M24LR6E -> ledControl

  5. Now, you can control LED from your phone.

#include "NfcTag.h"
#include <Wire.h>

NfcTag nfcTag;
int led = 5;
bool flag = false;
bool preFlag = false;
void setup(){

void loop(){
  flag = nfcTag.readByte(EEPROM_I2C_LENGTH-1) == 0xff?true:false;
  if(flag != preFlag){
    Serial.println("get remote NFC control signal!");
    if(flag == true){
      Serial.println("led will light up!");
      Serial.println("led will turn dark!");
    preFlag = flag;


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