How to call another function inside void loop function

Hi all, did anyone know how to call another function inside void loop function? My code as below:

Error: 'openDoor' was not declared in this scope

#include <Servo.h>
#include <Keypad.h>
#include <EEPROM.h>
               
int mode = 0;
int doorSens = A1;
const byte numRows= 4;          //number of rows on the keypad
const byte numCols= 3;          //number of columns on the keypad

char keymap[numRows][numCols]= 
{
{'1', '2', '3'}, 
{'4', '5', '6'}, 
{'7', '8', '9'},
{'*', '0', '#'}

};

char keypressed;                 //Where the keys are stored it changes very often
char code[]= {'6','6','0','1'};  //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 a=0,i=0,s=0,j=0;          //Variables used later

byte rowPins[numRows] = {8,7,6,5}; //Rows 0 to 3 //if you modify your pins you should modify this too
byte colPins[numCols]= {4,A5,A4}; //Columns 0 to 3


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);
    Serial.begin(9600);                        //配置9600
    Serial.println("STANBY!");  
    lock.attach(A3);
    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
//             }                                  //Then uncomment this for loop and reupload the code (It's done only once)

}


void loop()
{
 
  keypressed = myKeypad.getKey();               //Constantly waiting for a key to be pressed
    if(keypressed == '*')
    {                      // * to open the lock
            Serial.println("Enter code");
            GetCode();                          //Getting code function
                  if(a==sizeof(code))
                  {
                   openDoor();
                  }
              
                  else
                  {
                    Serial.println("Wrong passowrd");
                  
                  }
            delay(2000);
            Serial.println("Stanby");
    }

     if(keypressed == '#')
     {                  //To change the code it calls the changecode function
      ChangeCode();
      Serial.println("Stanby");                 //When done it returns to standby mode
     }
         
}

void GetCode(){                  //Getting code sequence
       i=0;                      //All variables set to 0
       a=0;
       j=0; 
                                     
     while(keypressed != '0'){                                     //The user press 0 to confirm the code otherwise he can keep typing
           keypressed = myKeypad.getKey();                         
 
            if(keypressed == code[i]&& i<sizeof(code)){            //if the char typed is correct a and i increments to verify the next caracter
                 a++;                                              //Now I think maybe I should have use only a or i ... too lazy to test it -_-'
                 i++;
                 }
            else
                a--;                                               //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(a==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(1000);
                  }
            
          }
          
          else{                     //In case the old code is wrong you can't change it
          Serial.println("Wrong");
          delay(2000);
          }
}

void GetNewCode1(){                      
  i=0;

  Serial.println("Enter a new code and press 0");
  delay(2000);
             
         while(keypressed != '0'){            //A to confirm and quits the loop
             keypressed = myKeypad.getKey();
               if(keypressed != NO_KEY && keypressed != '0' ){
                Serial.println("nothing");
                code_buff1[i]=keypressed;     //Store caracters in the array
                i++;
                               
                }
                }
keypressed = NO_KEY;
}

void GetNewCode2(){                         //This is exactly like the GetNewCode1 function but this time the code is stored in another array
  i=0;

  
  Serial.println("Confirm code and press 0");;
  delay(3000);

         while(keypressed != '0'){
             keypressed = myKeypad.getKey();
               if(keypressed != NO_KEY && keypressed != '0' ){
               Serial.println("nothing");
                code_buff2[i]=keypressed;
                i++;
                             
                }
                }
keypressed = NO_KEY;
}

void openDoor()
{             //Lock opening function open for 3s
  Serial.println("Door open"); 
  lock.attach(A3);
  delay(1000);
  lock.write(90);
  delay(1000);
  lock.detach();
  delay(500);
  while(digitalRead(doorSens)){
    //Serial.println("waiting for the action");  
  }
  closeDoor();
 
}

void closeDoor(){

  lock.attach(A3);
  delay(1000);
  lock.write(0);
  delay(1000);
  lock.detach(); 
  delay(1000);

}

void playsound() {
  tone(buzzer, 131);
  delay(200);
  noTone(buzzer);
}

Hi @peterjin

Hi,
The mode you used to call the function is correct.

The problem is that you have an improper "}" on line 98 of your sketch.

RV mineirin

Thanks I solved it

@peterjin, your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with your project :wink: See About the Installation & Troubleshooting category.