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Greenonline
Greenonline
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Need help with wire connections and code

Currently working on a keypad doorlock mechanism (Similar to this project http://www.electronoobs.com/eng_arduino_tut11.php). Below is the code I currently have:

/* I've used a i2c LCD screen module and 9g servo motor. */

//LCD config #include <Wire.h> #include <LiquidCrystal_I2C.h> LiquidCrystal_I2C lcd(0x27,20,4);

#include <Servo.h> #include <Keypad.h>

//Variables int mot_min = 90; //min servo angle (set yours) int mot_max = 180; //Max servo angle (set yours) int character = 0; int activated =0; char Str[16] = {' ', ' ', ' ', ' ', ' ', ' ', '-', '', '', '*', ' ', ' ', ' ', ' ', ' ', ' '};
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

//Pins Servo myservo; int buzzer=11; //pin for the buzzer beep int external = 12; //pin to inside open int internal = 13; //pin to inside close

//Keypad config const byte ROWS = 4; //four rows const byte COLS = 4; //four columns //define the cymbols on the buttons of the keypads char hexaKeys[ROWS][COLS] = { {'1','4','7','*'}, {'2','5','8','0'}, {'3','6','9','#'}, {'A','B','C','D'} }; byte rowPins[ROWS] = {5, 4, 3, 2}; //connect to the row pinouts of the keypad byte colPins[COLS] = {9, 8, 7, 6}; //connect to the column pinouts of the keypad

//initialize an instance of class NewKeypad Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

void setup(){ myservo.attach(10); //attach the servo to pin D10 pinMode(buzzer,OUTPUT); pinMode(external,INPUT); pinMode(internal,INPUT); //Init the screen and print the first text lcd.init(); lcd.backlight(); lcd.clear(); lcd.print(" PASSWORD"); lcd.setCursor(0,1); lcd.print(" -*** "); //put the servo in the close position first myservo.write(mot_min);

}

void loop(){ ///////////////EMERGENCY OPEN/CLOSE///////// if (digitalRead(external) == LOW) // if (digitalRead(external)) { myservo.write(mot_max); lcd.clear(); lcd.setCursor(2,0); lcd.print("INSIDE OPEN"); activated = 2; analogWrite(buzzer,240); delay(250); analogWrite(buzzer,200); delay(250); analogWrite(buzzer,180); delay(250); analogWrite(buzzer,250); delay(250); analogWrite(buzzer,LOW);

  lcd.clear();    
  lcd.setCursor(4,0);
  lcd.print("WELLCOME");
  
  lcd.setCursor(2,1);
  lcd.print("ELECTRONOOBS");
  

  lcd.clear();    
  lcd.setCursor(3,0);
  lcd.print("DOOR  OPEN");
  lcd.setCursor(2,1);
  lcd.print("ELECTRONOOBS");
  delay(500);

}

if (digitalRead(internal) == LOW) // if (digitalRead(internal)) { myservo.write(mot_min); activated = 0; character=0; Str[6]= '-'; Str[7]= ''; Str[8]= ''; Str[9]= '*'; Str[10]= ' ';
lcd.clear(); lcd.setCursor(0,0); lcd.print(" PASSWORD");
lcd.setCursor(0,1); lcd.print(Str); }

///////////////KEYPAD OPEN/CLOSE////////////
char customKey = customKeypad.getKey(); //this function reads the presed key

if (customKey != NULL){ // if (customKey)

if (character ==0) 
{  
Serial.println(customKey);
Str[6]= customKey;   
lcd.clear();
lcd.setCursor(0,0);
lcd.print("    PASSWORD");    
lcd.setCursor(0,1);
lcd.print(Str);

}

if (character ==1) 
{  
Serial.println(customKey);
Str[7]= customKey;   
lcd.clear();
lcd.setCursor(0,0);
lcd.print("    PASSWORD");    
lcd.setCursor(0,1);
lcd.print(Str);

}

if (character ==2) {
{  
Serial.println(customKey);
Str[8]= customKey;   
lcd.clear();
lcd.setCursor(0,0);
lcd.print("    PASSWORD");    
lcd.setCursor(0,1);
lcd.print(Str);

}

if (character ==3) 
{  
Serial.println(customKey);
Str[9]= customKey;   
lcd.clear();
lcd.setCursor(0,0);
lcd.print("    PASSWORD");    
lcd.setCursor(0,1);
lcd.print(Str);

}

if (character ==4)
{  
Serial.println(customKey);
Str[10]= customKey;
activated=1;

}
character=character+1;

}

if (activated == 1) { /Change your password below!!! Change each of Str[6], Str[7], Str[8], Str[9]/

// if (Str[10] = 'A' && ...)
if(Str[10]=='A' && character==5 && Str[6]=='3' && Str[7]=='0' && Str[8]=='0' && Str[9]=='7' )
{
  myservo.write(mot_max);
  lcd.clear();
  lcd.setCursor(4,0);
  lcd.print("ACCEPTED");
  activated = 2;
  analogWrite(buzzer,240);
  delay(250);
  analogWrite(buzzer,200);
  delay(250);
  analogWrite(buzzer,180);
  delay(250);
  analogWrite(buzzer,250);
  delay(250);
  analogWrite(buzzer,LOW);
  delay(1000);
  
  lcd.clear();    
  lcd.setCursor(4,0);
  lcd.print("WELLCOME");
  delay(500);
  lcd.setCursor(2,1);
  lcd.print("ELECTRONOOBS");
  delay(1000);

  lcd.clear();    
  lcd.setCursor(3,0);
  lcd.print("DOOR  OPEN");
  lcd.setCursor(2,1);
  lcd.print("ELECTRONOOBS");
  
}
else
{
  lcd.clear();    
  lcd.setCursor(1,0);
  lcd.print("PASSWORD ERROR");
  lcd.setCursor(3,1);
  lcd.print("TRY  AGAIN");
  analogWrite(buzzer,150);
  delay(3000);
  analogWrite(buzzer,LOW);
  character=0;
  Str[6]= '-';
  Str[7]= '*'; 
  Str[8]= '*'; 
  Str[9]= '*';
  Str[10]= ' ';
  activated = 0;
  lcd.clear();    
  lcd.setCursor(4,0);
  lcd.print("PASSWORD");
  lcd.setCursor(0,1);
  lcd.print(Str);   
}

} if (activated == 2) { if(customKey == 'B' ) { myservo.write(mot_min); activated = 0; character=0; Str[6]= '-'; Str[7]= ''; Str[8]= ''; Str[9]= '*'; Str[10]= ' ';
lcd.clear(); lcd.setCursor(0,0); lcd.print(" PASSWORD");
lcd.setCursor(0,1); lcd.print(Str);

}

}
} }

NotaBot
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