Update to RFID Authentication

Ok... so wow... I've gotten a pretty huge response about my last post. I am getting a lot of feedback saying that printing my actual tag value to the keyboard buffer is pretty much the same thing as shouting my passwords at the top of my lungs... so I just spent the last.... 45 minutes or so completely re-coding the entire sketch. Please keep in mind that i suck at coding and this, aside from the rudimentary turning commands i gave my robot last year is the biggest project in the wiring language i have ever done. Since i was getting the hang of it, I also threw in some code for operating a servo... but thats for another project. Never mind the empty printin's... those are for me as well.

Hit Read More to continue on and see the code.

//RFID tag verificaton with custom tag output

//Based off of Arduino Playground sketch

//Modified by Jair2k4

#include <SoftwareSerial.h>

#define rxPin 2

#define txPin 6

#define ledPin 13

#define CODE_COUNT 2

#define MIN_ROTATION 150

#define MAX_ROTATION 30

// set up a soft serial port

SoftwareSerial mySerial(rxPin, txPin);

int val = 0;

char code[10];

int bytesread = 0;

char *goodCode = "INSERT TAG HERE"; //The value of your RFID tag

#include <Servo.h>

Servo servo;

void setup() {

// define pin modes for tx, rx, led pins:

pinMode(rxPin, INPUT); // Set rxPin as INPUT to accept SOUT from RFID pin

pinMode(txPin, OUTPUT); // Set txPin as OUTPUT to connect it to the RFID /ENABLE pin

pinMode(ledPin, OUTPUT); // Let the user know whats up

// set the data rate for the serial ports

mySerial.begin(2400); // RFID reader SOUT pin connected to Serial RX pin at 2400bps

Serial.begin(9600); // Serial feedback for debugging in Wiring

servo.attach(3);

// say something

Serial.println();

}

void loop() {

digitalWrite(txPin, LOW); // Activate the RFID reader

digitalWrite(ledPin, LOW); // Turn off debug LED

if((val = mySerial.read()) == 10) { // check for header

bytesread = 0;

while(bytesread<10) { // read 10 digit code

val = mySerial.read();

if((val == 10)||(val == 13)) { // if header or stop bytes before the 10 digit reading

break; // stop reading

}

code[bytesread] = val; // add the digit

bytesread++; // ready to read next digit

}

if(bytesread == 10) { // If 10 digit read is complete

digitalWrite(txPin, HIGH); // deactivate RFID reader

digitalWrite(ledPin, HIGH); // activate LED to show an RFID card was read

//Serial.print("TAG code is: "); // possibly a good TAG

Serial.println(); // print the TAG code

boolean success = true;

for(int i=0;i<10;i++) {

if(goodCode[i] != code[i]) {

success = false;

digitalWrite(ledPin, HIGH); // activate LED to show error

delay(500);

digitalWrite(ledPin, LOW);

delay(500);

digitalWrite(ledPin, HIGH);

delay(500);

digitalWrite(ledPin, LOW);

delay(500);

digitalWrite(ledPin, HIGH);

delay(500);

digitalWrite(ledPin, LOW);

break;

}

}

if(success){

digitalWrite(ledPin, HIGH);

Serial.print("PASSWORD"); //Print desired password

servo.write(MAX_ROTATION);

delay(1000);

}

else {

}

}

bytesread = 0;

delay(500);

servo.write(MIN_ROTATION);

}

}