Hi, can anyone help me on this. I need to make the password length to be 6 digit long but I fail to make it even I had define in the beginning. Below is my code. Thanks.
#include <TMRpcm.h>
#include <Servo.h>
#include <Keypad.h>
#include <EEPROM.h>
#include <SD.h> //include SD module library
#include <SPI.h>
#define SD_ChipSelectPin 53
TMRpcm tmrpcm;
const byte numRows= 4; //number of rows on the keypad
const byte numCols= 4; //number of columns on the keypad
char keymap[numRows][numCols]=
{
{'1', '2', '3', 'A'},
{'4', '5', '6', 'B'},
{'7', '8', '9', 'C'},
{'*', '0', '#', 'D'}
};
char keypressed;//Where the keys are stored it changes very often
char code[]= {'1','2','3','4','5','6'}; //The default code, you can change it or make it a 'n' digits one
char code_buff1[sizeof(code)]; //Where the new key is stored
char code_buff2[sizeof(code)]; //Where the new key is stored again so it's compared to the previous one
short k=0,i=0,s=0,j=0; //Variables used later
byte rowPins[numRows] = {32,30,28,26}; //Rows 0 to 3 //if you modify your pins you should modify this too
byte colPins[numCols]= {24,22,7,6}; //Columns 0 to 3
int mode = 0;
int doorSens = A1;
Keypad myKeypad= Keypad(makeKeymap(keymap), rowPins, colPins, numRows, numCols);
Servo lock; //定义LED控制引脚
#define buzzer A2
void setup()
{
pinMode(A1,INPUT_PULLUP);
pinMode(doorSens, INPUT_PULLUP);
tmrpcm.speakerPin = 9;
Serial.begin(9600); //配置9600
Serial.println("STANBY!");
lock.attach(A3);
pinMode(A3,OUTPUT);
lock.write(0);
for(i=0 ; i<sizeof(code);i++)
{ //When you upload the code the first time keep it commented
EEPROM.get(i, code[i]); //Upload the code and change it to store it in the EEPROM
}
if (!SD.begin(SD_ChipSelectPin))
{ //see if the card is present and can be initialized
Serial.println("SD fail");
return; //don't do anything more if not
}
else
{
Serial.println("sucess");
}
}
void loop()
{
myKeypad.addEventListener(keypadEvent);
myKeypad.getKey();
keypressed = myKeypad.getKey();
if(keypressed == '*')
{
delay(500);
Serial.println("Enter code");
GetCode(); //Getting code function
if(k==sizeof(code))
openDoor();
else
{
Serial.println("Wrong passowrd");
}
delay(1000);
Serial.println("Stanby!");
}
if(keypressed == '#')
{
delay(500);
ChangeCode();
delay(1000);
Serial.println("Stanby!"); //When done it returns to standby mode
}
}
void keypadEvent(KeypadEvent eKey)
{
switch (myKeypad.getState()) {
case PRESSED:
Serial.print("Enter:");
Serial.println(eKey);
playsound();
}
}
void playsound()
{
tone(buzzer, 131);
delay(200);
noTone(buzzer);
}
void GetCode(){ //Getting code sequence
i=0; //All variables set to 0
k=0;
//j=0;
while(keypressed != 'A')
{ //The user press 0 to confirm the code otherwise he can keep typing
keypressed = myKeypad.getKey();
if(keypressed != NO_KEY && keypressed != 'A' )
{ //If the char typed isn't A and neither "nothing"
//Serial.println(j,1); //This to write "*" on the LCD whenever a key is pressed it's position is controlled by j
// Serial.println("*");
//j++;
if(keypressed == code[i]&& i<sizeof(code))
{ //if the char typed is correct a and i increments to verify the next caracter
k++; //Now I think maybe I should have use only a or i ... too lazy to test it -_-'
i++;
}
else
{
k--;
}
//if the character typed is wrong a decrements and cannot equal the size of code []
}
}
keypressed = NO_KEY;
}
void ChangeCode(){ //Change code sequence
Serial.println("Changing code");
delay(1000);
Serial.println("Enter old code");
GetCode(); //verify the old code first so you can change it
if(k==sizeof(code))
{ //again verifying the a value
Serial.println("Changing code");
GetNewCode1(); //Get the new code
GetNewCode2(); //Get the new code again to confirm it
s=0;
for(i=0 ; i<sizeof(code) ; i++){ //Compare codes in array 1 and array 2 from two previous functions
if(code_buff1[i]==code_buff2[i])
s++; //again this how we verifiy, increment s whenever codes are matching
}
if(s==sizeof(code)){ //Correct is always the size of the array
for(i=0 ; i<sizeof(code) ; i++){
code[i]=code_buff2[i]; //the code array now receives the new code
EEPROM.put(i, code[i]); //And stores it in the EEPROM
}
Serial.println("Code Changed");
delay(2000);
}
else{ //In case the new codes aren't matching
Serial.println("Code not match");
delay(2000);
}
}
else{ //In case the old code is wrong you can't change it
Serial.println("Wrong");
delay(2000);
}
}
void GetNewCode1(){
i=0;
//j=0;
Serial.println("Enter a new code and press A");
delay(2000);
while(keypressed != 'A'){ //A to confirm and quits the loop
keypressed = myKeypad.getKey();
if(keypressed != NO_KEY && keypressed != 'A' ){
//Serial.println(j,0);
//Serial.println(ekey);
code_buff1[i]=keypressed; //Store caracters in the array
i++;
//j++;
}
}
keypressed = NO_KEY;
}
void GetNewCode2(){ //This is exactly like the GetNewCode1 function but this time the code is stored in another array
i=0;
//j=0;
Serial.println("Confirm code and press A");;
delay(2000);
while(keypressed != 'A'){
keypressed = myKeypad.getKey();
if(keypressed != NO_KEY && keypressed != 'A' ){
//Serial.println(j,0);
//Serial.println("*");
//Serial.println("nothing");
code_buff2[i]=keypressed;
i++;
//j++;
}
}
keypressed = NO_KEY;
}
void openDoor()
{ //Lock opening function open for 3s
Serial.println("Door open");
lock.attach(A3);
lock.write(90);
delay(1000);
lock.detach();
while(digitalRead(doorSens)){
Serial.println("waiting for the action");
}
closeDoor();
}
void closeDoor(){
delay(1000);
lock.attach(A3);
lock.write(0);
delay(1000);
lock.detach();
}
void speaker()//open door
{
if (SD.begin(SD_ChipSelectPin))
{
tmrpcm.quality(1);
tmrpcm.setVolume(5); //0 to 7. Set volume level
tmrpcm.play("1.wav");
}
}
void speaker1()//close door
{
if (SD.begin(SD_ChipSelectPin))
{
tmrpcm.quality(1);
tmrpcm.setVolume(5); //0 to 7. Set volume level
tmrpcm.play("3.wav");
}
}
void speaker2()//wrong password
{
if (SD.begin(SD_ChipSelectPin))
{
tmrpcm.quality(1);
tmrpcm.setVolume(5); //0 to 7. Set volume level
tmrpcm.play("2.wav");
}
}
