DFR0231 Datasheet DFR0231 | P4-P6

const unsigned char wake[24]={

0x55, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, 0xfd, 0xd4, 0x14, 0x01, 0x17,

0x00};//wake up NFC module

const unsigned char firmware[9]={

0x00, 0x00, 0xFF, 0x02, 0xFE, 0xD4, 0x02, 0x2A, 0x00};//

const unsigned char tag[11]={

0x00, 0x00, 0xFF, 0x04, 0xFC, 0xD4, 0x4A, 0x01, 0x00, 0xE1, 0x00};//detecti

ng tag command

const unsigned char std_ACK[25] = {

0x00, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0x00, 0x00, 0xFF, 0x0C, \

0xF4, 0xD5, 0x4B, 0x01, 0x01, 0x00, 0x04, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00,

0x4b, 0x00};

unsigned char old_id[5];

unsigned char receive_ACK[25];//Command receiving buffer

//int inByte = 0; //incoming serial byte buffer

#if defined(ARDUINO) && ARDUINO >= 100

#include "Arduino.h"

#define print1Byte(args) Serial1.write(args)

#define print1lnByte(args) Serial1.write(args),Serial1.println()

#else

#include "WProgram.h"

#define print1Byte(args) Serial1.print(args,BYTE)

#define print1lnByte(args) Serial1.println(args,BYTE)

#endif

void setup(){

Serial.begin(9600); // open serial with PC

Serial1.begin(115200); //open serial1 with device

//Serial2.begin(115200);

wake_card();

delay(100);

read_ACK(15);

delay(100);

display(15);

}

void loop(){

send_tag();

read_ACK(25);

delay(100);

if (!cmp_id ()) {

if (test_ACK ()) {

display (25);

delay (100);

}

copy_id ();

}

void copy_id (void) {//save old id

int ai, oi;

for (oi=0, ai=19; oi<5; oi++,ai++) {

old_id[oi] = receive_ACK[ai];

}

char cmp_id (void){//return true if find id is old

int ai, oi;

for (oi=0,ai=19; oi<5; oi++,ai++) {

if (old_id[oi] != receive_ACK[ai])

return 0;

}

return 1;

}

int test_ACK (void) {// return true if receive_ACK accord with std_ACK

int i;

for (i=0; i<19; i++) {

if (receive_ACK[i] != std_ACK[i])

return 0;

}

return 1;

}

void send_id (void) {//send id to PC

int i;

Serial.print ("ID: ");

for (i=19; i<= 23; i++) {

Serial.print (receive_ACK[i], HEX);

Serial.print (" ");

}

Serial.println ();

}

void UART1_Send_Byte(unsigned char command_data){//send byte to device

print1Byte(command_data);

#if defined(ARDUINO) && ARDUINO >= 100

Serial1.flush();// complete the transmission of outgoing serial data

#endif

}

void UART_Send_Byte(unsigned char command_data){//send byte to PC

Serial.print(command_data,HEX);

Serial.print(" ");

}

void read_ACK(unsigned char temp){//read ACK into reveive_ACK[]

unsigned char i;

for(i=0;i<temp;i++) {

P1-P3 P4-P6 P7-P7

DFR0231

Mfr. #:

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Manufacturer:

DFRobot

Description:

RFID Transponder Tools NFC Module for Arduino

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