I am trying to create multiple length combinations of passwords to jump to a different unlock letter on the void loop within my keypad.. However I cannot define more than one password length, anyone see a way to get around this?
The code compiles, however it only allows the first
#define Password_Lenght 4 // Give enough room for chars + NULL char
To go through.. its as if it ignores the second
#define Password_Lenght2 4 // Give enough room for chars + NULL char
#include <Keypad.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define Password_Lenght 4 // Give enough room for chars + NULL char
#define Password_Lenght2 4 // Give enough room for chars + NULL char
#define GPIO_ADDR 0x27
LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // set the LCD I2C address
char Data[Password_Lenght]; // the number of chars it can hold + the null char = x
char Data2[Password_Lenght2]; // the number of chars it can hold + the null char = x
char Master[Password_Lenght] = "12";
char Master2[Password_Lenght2] = "234";
byte data_count = 0, master_count = 0;
bool Pass_is_good;
char customKey;
const byte ROWS = 4;
const byte COLS = 4;
char keys[ROWS][COLS] = {
{'1','2','3','A'},
{'4','5','6','B'},
{'7','8','9','C'},
{'*','0','#','D'}
};
byte rowPins[ROWS] =
{11,10,9,8}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {
7,6,5,4}; //connect to the column pinouts of the keypad
Keypad customKeypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS); //initialize an instance of class NewKeypad
void setup()
{
lcd.begin(16,2);// initialize the lcd
lcd.backlight();
}
void loop()
{
lcd.setCursor(0,0);
lcd.print("Enter Letter");
customKey = customKeypad.getKey();
if (customKey) // makes sure a key is actually pressed, equal to (customKey != NO_KEY)
{
Data[data_count] = customKey; // store char into data array
lcd.setCursor(data_count,1); // move cursor to show each new char
lcd.print(Data[data_count]); // print char at said cursor
data_count++; // increment data array by 1 to store new char, also keep track of the number of chars entered
}
if(data_count == Password_Lenght-1) // if the array index is equal to the number of expected chars, compare data to master
{
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("");
if(!strcmp(Data, Master)) // equal to (strcmp(Data, Master) == 0)
lcd.print("Letter: A");
else
if(!strcmp(Data, Master2)) // equal to (strcmp(Data, Master) == 0)
lcd.print("Letter: B");
else
lcd.print("No Letter");
delay(1000);// added 1 second delay to make sure the password is completely shown on screen before it gets cleared.
lcd.clear();
clearData();
}
}
void clearData()
{
while(data_count !=0)
{ // This can be used for any array size,
Data[data_count--] = 0; //clear array for new data
}
return;
}