Stap 4: ARduino codering
Arduino-code is erg eenvoudig.
Voor dit moet je
Arduino software
Bibliotheken: wachtwoord Klik hier,
toetsenblok hier
Code:
#include <Password.h> #include <Keypad.h>
#include <Servo.h>
Servo myservo; //declares servo
Password password = Password( "14471" ); //password to unlock box, can be changed
const byte ROWS = 4; // Four rows
const byte COLS = 4; // columns
// Define the Keymap
char keys[ROWS][COLS] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} };
// Connect keypad ROW0, ROW1, ROW2 and ROW3 to these Arduino pins.
byte rowPins [ROWS] = {5, 4, 3, 2 byte rowPins[ROWS] = { 5, 4, 3, 2 }; // Connect keypad COL0, COL1 and COL2 to these Arduino pins.
byte colPins [COLS] = {8, 7, 6, 9 byte colPins[COLS] = { 8, 7, 6, 9 }; // Create the Keypad
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );
void setup(){ Serial.begin(9600);
Serial.write(254);
Serial.write(0x01);
delay(200);
myservo.attach(12); //servo on digital pin 9 //servo
keypad.addEventListener(keypadEvent); //add an event listener for this keypad
}<br>
void loop(){ keypad.getKey();
} //take care of some special events
void keypadEvent(KeypadEvent eKey){ switch (keypad.getState()){ case PRESSED:
Serial.print("Enter: "); Serial.println(eKey);
delay(10);
Serial.write(254);
switch (eKey){ case 'A': checkPassword();delay(1); break;
case 'B': password.reset(); delay(1); break;
default: password.append(eKey); delay(1);
}
}
}
void checkPassword(){ if (password.evaluate()){ //if password is right open box
Serial.println("Accepted"); Serial.write(9);delay(10);
//Add code to run if it works
myservo.write(135);
delay(500); //wait 5 seconds
}
else{ Serial.println("Denied"); //if passwords wrong keep box locked
Serial.write(254);
delay(10);
//add code to run if it did not work
myservo.write(45);
delay(500); //wait 5 seconds
}
}
