NFC logger

Code:: /*
The goal of this sketch is to unlock your computer (for example) with KeyDuino and a NFC tag.
Get the ID of your tag, put it in NFC_KEY below, and set the PASSWORD of your computer.
When you scan the tag with KeyDuino, it will enter your password automatically, as if you had typed it with your keyboard.
More information in the video of the project: https://www.youtube.com/watch?v=TPVR7IkHJbM
Author: Mr Stein
Revised by Raymond Borenstein - CITC-EuraRFID
Compatible with KeyDuino 5.1
Join http://keyduino.forumsactifs.com/ to ask your questions, suggest your ideas, and show your projects!
*/

#include <KeyDuino.h>

KeyDuino keyDuino;

uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };
uint8_t uidLength;

String NFC_KEY_1 = "xxxx";
String NFC_KEY_2 = "xxxx";

String PASSWORD = "xxxxxxxx";

void setup(void) {
Serial.begin(115200);
keyDuino.begin();

Serial.println("KeyDuino is ready, please scan a tag.");
}

void loop(void) {
uint8_t success;
String readID;
success = keyDuino.readTargetID(uid, &uidLength);
if (success){
Serial.print("Tag found: ");
readID = keyDuino.convertUintToString(uid, uidLength);

if (readID == NFC_KEY_1 || readID == NFC_KEY_2){
keyDuino.buzz(20);
Keyboard.println(PASSWORD);
delay(1000);
}

}
else Serial.print(".");
}

Newbie Messages : 4 Reputation : 0 Date d'inscription : 2017-11-26

I was able to make this work by following the video. Although I went back into serial monitor after making sure it works to read the id of another tag. When I scanned a new tag it just says tag found and does not list the id of the tag like it first did. What am I doing wrong?

Hum in fact it miss this :
Serial.print(readID);

Just after this
readID = keyDuino.convertUintToString(uid, uidLength);

Keep me in touch if it doesn't work Wink

Newbie Messages : 4 Reputation : 0 Date d'inscription : 2017-11-26

That did the trick, I was thinking it needed something like that but didn't know the terms. This is all new to me and learning as I go. Thanks a lot!

Newbie Messages : 4 Reputation : 0 Date d'inscription : 2017-11-26

void loop(void) {
uint8_t success;
String readID;
success = keyDuino.readTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
if (success){
Serial.print("Tag found: ");
readID = keyDuino.convertUintToString(uid, uidLength);
Serial.print(readID);

if (readID == NFC_KEY_1 || readID == NFC_KEY_2){
keyDuino.buzz(20);
Keyboard.write(0xDA);
delay(200);
Keyboard.println(PASSWORD);
delay(200);
Keyboard.write(0xB0);
delay(200);

That's the end of the code that I use to unlock a windows 7 & 10 machine.