Modul 4 Alat Brangkas







BRANKAS

1.RANGKAIAN [kembali]


2. PENJELASAN [kembali]

      Alat ini berfungsi mengunci brangkas dengan kode password tertentu.Motor servo akan membuka pintu setelah password yang dimasukkan dengan benar.

3. FLOWCHART [kembali]


4. LISTING PROGRAM [kembali]

Teori


#include
#include
#include
#include


Servo myservo;

LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);

#define Password_Lenght 7

int pos = 0;

char Data[Password_Lenght];
char Master[Password_Lenght] = "123456";
byte data_count = 0;
bool Pass_is_good;
char customKey;

const byte ROWS = 4;
const byte COLS = 3;
char keys[ROWS][COLS] = {
{'1', '2', '3'},
{'4', '5', '6'},
{'7', '8', '9'},
{'*', '0', '#'}
};
bool door = true;

byte rowPins[ROWS] = {2, 3, 4, 5};
byte colPins[COLS] = {6, 7, 8};

Keypad customKeypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup()
{
myservo.attach(9);
ServoClose();
lcd.begin(16, 2);
lcd.print("Welcome....");
lcd.setCursor(0, 1);
lcd.print("Please enter password");
delay(3000);
lcd.clear();

}

void loop()
{
if (door == 0)
{
customKey = customKeypad.getKey();

if (customKey == '#')

{
lcd.clear();
ServoClose();
lcd.print(" Door is close");
delay(3000);
door = 1;
}
}

else Open();
}

void clearData()
{
while (data_count != 0)
{ // This can be used for any array size,
Data[data_count--] = 0; //clear array for new data
}
return;
}

void ServoOpen()
{
for (pos = 0; pos <= 180; pos += 5) { // goes from 180 degrees to 0 degrees myservo.write(pos); // tell servo to go to position in variable 'pos' delay(15); // waits 15ms for the servo to reach the position } } void ServoClose() { for (pos = 180; pos >= 0; pos -= 5) { // goes from 0 degrees to 180 degrees
// in steps of 1 degree
myservo.write(pos); // tell servo to go to position in variable 'pos'
delay(15); // waits 15ms for the servo to reach the position
}
}

void Open()
{
lcd.setCursor(0, 0);
lcd.print(" Enter Password");

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
{
if (!strcmp(Data, Master)) // equal to (strcmp(Data, Master) == 0)
{
lcd.clear();
ServoOpen();
lcd.print(" Door is Open");
door = 0;
}
else
{
lcd.clear();
lcd.print(" Wrong Password");
delay(1000);
door = 1;
}
clearData();
}
}



5. VIDEO [kembali]

6. LINK DOWNLOAD [kembali]

a.Rangkaian <download>
b.Video <download>
c.Coding <download>

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