Connecting PN532 RFID Reader

5V can be connect to either a [+] or [VCC] GND can be connected to either a [-] or [GND]

SCK [2]

MI [5]

MO/SDA/TX [3]

NSS/SCL/RX [4]

IRO [NOT CONNECTED]

RST [NOT CONNECTED]

Step 1: Arduino Code

#include <Wire.h>
#include <SPI.h>
#include <Adafruit_PN532.h>

// If using the breakout with SPI, define the pins for SPI communication.
#define PN532_SCK  (2)
#define PN532_MOSI (3)
#define PN532_SS   (4)
#define PN532_MISO (5)

// If using the breakout or shield with I2C, define just the pins connected
// to the IRQ and reset lines.  Use the values below (2, 3) for the shield!
#define PN532_IRQ   (2)
#define PN532_RESET (3)  // Not connected by default on the NFC Shield

// Uncomment just _one_ line below depending on how your breakout or shield
// is connected to the Arduino:

// Use this line for a breakout with a SPI connection:
Adafruit_PN532 nfc(PN532_SCK, PN532_MISO, PN532_MOSI, PN532_SS);


void setup(void) {
  Serial.begin(115200);
//  Serial.begin(9600);
  while (!Serial) delay(10); // for Leonardo/Micro/Zero
  Serial.println("Hello!");

  nfc.begin();

  uint32_t versiondata = nfc.getFirmwareVersion();
  if (! versiondata) {
    Serial.print("Didn't find PN53x board");
    while (1); // halt
  }
  
  // Got ok data, print it out!
  Serial.print("Found chip PN5"); Serial.println((versiondata>>24) & 0xFF, HEX); 
  Serial.print("Firmware ver. "); Serial.print((versiondata>>16) & 0xFF, DEC); 
  Serial.print('.'); Serial.println((versiondata>>8) & 0xFF, DEC);
  
  // Set the max number of retry attempts to read from a card
  // This prevents us from waiting forever for a card, which is
  // the default behaviour of the PN532.
  nfc.setPassiveActivationRetries(0xFF);
  
  // configure board to read RFID tags
  nfc.SAMConfig();
  
  Serial.println("Waiting for an ISO14443A card");
}

void loop(void) {
  Serial.println("waiting");
  boolean success;
  uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };	// Buffer to store the returned UID
  uint8_t uidLength;				// Length of the UID (4 or 7 bytes depending on ISO14443A card type)
  
  success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &uid[0], &uidLength);
  
  if (success) {
    
//  Reader here
    Serial.println("Found a card!");
    Serial.print("UID Length: ");Serial.print(uidLength, DEC);Serial.println(" bytes");
    Serial.print("UID Value: ");
    for (uint8_t i=0; i < uidLength; i++) 
    {
      Serial.print(" 0x");Serial.print(uid[i], HEX); 
    }
    Serial.println("");
    
//  Comparison here
    if ((uid[0] == 0x90) && (uid[1] == 0xEF) && (uid[2] == 0x95) && uid[3] == 0x4A) {
      Serial.print("potatoe");
      Serial.println("");
      Serial.print("tapped");
      Serial.println("");
    }
    if ((uid[0] == 0x50) && (uid[1] == 0x61) && (uid[2] == 0x96) && uid[3] == 0x4A) {
      Serial.print("orange");
      Serial.println("");
      Serial.print("tapped");
      Serial.println("");
    }
    if ((uid[0] == 0xC0) && (uid[1] == 0xD1) && (uid[2] == 0x95) && uid[3] == 0x4A) {
      Serial.print("pineapple");
      Serial.println("");
      Serial.print("tapped");
      Serial.println("");
    }
    if ((uid[0] == 0x90) && (uid[1] == 0xF6) && (uid[2] == 0x95) && uid[3] == 0x4A) {
      Serial.print("banana");
      Serial.println("");
      Serial.print("tapped");
      Serial.println("");
    }
    if ((uid[0] == 0xC0) && (uid[1] == 0xD9) && (uid[2] == 0x95) && uid[3] == 0x4A) {
      Serial.print("kiwi");
      Serial.println("");
      Serial.print("tapped");
      Serial.println("");
    }
    if ((uid[0] == 0xB0) && (uid[1] == 0xE1) && (uid[2] == 0x95) && uid[3] == 0x4A) {
      Serial.print("corn");
      Serial.println("");
      Serial.print("tapped");
      Serial.println("");
    }
    
	delay(500);
 
  }
  
  else
  {
    // PN532 probably timed out waiting for a card
    Serial.println("Timed out waiting for a card");
  }


}

Step 2: Processing3.0 Code

import processing.serial.Serial;

import processing.video.*;

//Serial Link
static final int PORT_INDEX = 3, BAUDS = 115200;
String myString; 
boolean auto = true;
boolean state = false;

Movie myMovie[];

float t0;
float t;
int index = 0;
 
void setup() {
  fullScreen(P2D, 1);
  
  final String[] ports = Serial.list();
  printArray(ports);
  new Serial(this, ports[PORT_INDEX], BAUDS).bufferUntil(ENTER);
  //println(myString);
  
  myMovie = new Movie[3];
   
  frameRate(120);


  myMovie[0]  = new Movie(this, "/Users/marcusfoo/Desktop/ExampleV3_5/loops.mp4");
  myMovie[1]  = new Movie(this, "/Users/marcusfoo/Desktop/ExampleV3_5/loop_orange.mp4");
  myMovie[2]  = new Movie(this, "/Users/marcusfoo/Desktop/ExampleV3_5/loop_potatoe.mp4");
 
  myMovie[0].pause();
  myMovie[1].pause();
  myMovie[2].pause();
  
  if(state == false){
    println("I just woke up");
    state = false;
    myMovie[1].stop();
    myMovie[2].stop();
    myMovie[0].loop();
    index = 0;
    t0 = millis()/1000;
    println("looping first boot");
  }
}
 
 
void draw() {
  background(0);
  println("Tapped or not auto on / off: "+auto);
  image(myMovie[index], 0, 0, width, height);
 
  //image(main,0,0,width,height);

  if (myMovie[index].available() ) {
    myMovie[index].read();
  }
 
  if (t > myMovie[index].duration() + t0) {
    println("finished! "+index);
    
  //ONLY WHEN THE VIDEO IS FINISHED
    state = true;
    
  //Check if it it came from a normal switch and auto end - auto
    if(index != 0 && auto == true){
      if(state == true && index != 0){
        println("I shall be looping after looping");
        state = false;
        myMovie[1].stop();
        myMovie[2].stop();
        myMovie[0].loop();
        //This makes sure that IT DOES NOT GO BACK TO INIT
        index = 0;
        state = true;
        auto = true;
        t0 = millis()/1000;
        println("looping is after start");
      }
    }
    
   //Check if it it came from a normal switch and auto end - no auto 
   
   if(index != 0 && auto == false){
      if(state == true && index != 0){
        println("I have just been tapped");
        //state = false;
        //myMovie[1].stop();
        //myMovie[2].stop();
        //myMovie[0].loop();
        //This makes sure that IT DOES NOT GO BACK TO INIT
        //index = 0;
        state = true;
        auto = true;
        t0 = millis()/1000;
        println("no loop from taps");
      }
    }

    //if(state == true && index != 0 && auto == true){
    //  println("I shall be looping after looping");
    //  state = false;
    //  myMovie[1].stop();
    //  myMovie[2].stop();
    //  myMovie[0].loop();
    //  //This makes sure that IT DOES NOT GO BACK TO INIT
    //  index = 0;
    //  t0 = millis()/1000;
    //  println("looping is after start");
    //}
  }


  
//When the other tag is tapped when the initial one has been tapped, it registers it as a >0 and a true state thus causing the replay to occur
   
  t  = millis()/1000;
}


void serialEvent(final Serial s) {
  myString = s.readString().trim();
  if (myString.equals("orange")) {
    state = false;
    myMovie[0].stop();
    myMovie[2].stop();
    myMovie[1].play();
    index = 1;
    t0 = millis()/1000;
    println("orange is playing");

  } 
  if (myString.equals("potatoe")) {
    state = false;
    myMovie[0].stop();
    myMovie[1].stop();
    myMovie[2].play();
    index = 2;
    t0 = millis()/1000;
    println("potatoe is playing");

  } 
  if(myString.equals("tapped")){
    auto = false;
    println("It has been tapped");
  }
  //else{
  //  auto = true;
  //}
}

Step 3: Changes to Be Made to the Code

VARIABLES MEANING AND CHANGES (ARDUINO)
Stored RFID Hex Code

(uid[0] == 0x50) && (uid[1] == 0x66) && (uid[2] == 0x96) && uid[3] == 0x4A)

VARIABLES MEANING AND CHANGES (PROCESSING CODE)

Selecting the correct port to obtain data from Arduino

static final int PORT_INDEX = 3, BAUDS = 115200;

Location of the movie files

myMovie[0] = new Movie(this, "/Users/marcusfoo/Desktop/ExampleV3_5/loops.mp4");

myMovie[1] = new Movie(this, "/Users/marcusfoo/Desktop/ExampleV3_5/loop_orange.mp4");

myMovie[2] = new Movie(this, "/Users/marcusfoo/Desktop/ExampleV3_5/loop_potatoe.mp4");

Function which obtains data from Arduino

void serialEvent(final Serial s)

Introduction: Herbal Tea Shop

Step 1: Arduino Code

Step 2: Processing3.0 Code

Step 3: Changes to Be Made to the Code