NFC Ring Lock Box by Nairod785

Lokki

Yeah go fo it, show us the working item!

Nairod785

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Lokki

Excellent, that's great! Very cool!

Nairod785

Here is my sketch

#include <Servo.h>
#include <Wire.h>
#include <PN532_I2C.h>
#include <PN532.h>

PN532_I2C pn532i2c(Wire);
PN532 nfc(pn532i2c);

Servo myservo;  // create servo object to control a servo
int pos=1; // variable to store the servo position

void setup() {
  nfc.begin();
  nfc.SAMConfig(); // configure board to read RFID tags 
} 

void loop() {
  if(pos==1){
    myservo.attach(3);  // attaches the servo on pin 3 to the servo object "Digital 3"
    myservo.writeMicroseconds(2000);
    pos=2;
    delay(400);
  }
  if(pos==3){
    myservo.attach(3);  // attaches the servo on pin 3 to the servo object "Digital 3"
    myservo.writeMicroseconds(580);
    pos=4;
    delay(400);
  }
  if(pos==2){
    myservo.detach();
  }
  if(pos==4){
    myservo.detach();
    delay(2000);
  }
  String ringUid;
  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 & uidLength==7) {

    for (uint8_t i=0; i<7; i++){
      ringUid += String(uid[i], HEX);
    }
    if (ringUid=="hexadecimal number of inlay n°1" || ringUid=="hexadecimal number of inlay n°2"){
      if(pos!=4){
        pos=3;
      }
      if(pos==4){
        pos=1;
      }
    }
  }
}

shama

Very cool.

Nairod785

I'll post a link of the instructable and the final video in the next few weeks!

Chivo

This idea very much interests me. Slightly different use than what I have in mind, but this I dig. Well done and thanks for giving me a fall project to brainstorm on.

Nairod785

I'll release a Tutorial in few days... sory for being late

Nairod785

TUTORIAL !
http://www.instructables.com/id/NFC-Ring-Lock-Box/
Here you are !
Tell me if I need to change something.
Maybe you want me to explain the sketch ?
A video to show how it works in real time?

Lokki

Lokks good @Nairod785!

MrStein

So cool! I really like this kind of project, great job :D