Need help with error: no matching function for call to 'DSPL::begin()'

Projects Programming
1

Hi everyone
I desperately need help with this error. I've tested different LiquidCrystal_I2C libraries but no effect.
One solution I found was to put
'DSPL::begin(16, 2)'
instead of
'DSPL::begin()'
and it got rid of the error and I could upload but I get this on LCD.

IMG_20250526_065814
IMG_20250526_0658141920×1440 140 KB

LCD is fine and it can display the Hello World example from LiquidCrystal_I2C library.
Someone smarter please check the error and see if you help me, it's urgent. Appreciated.
The error message:

D:\Electronics\Hot Air Station\ARDUINO-SMD-REWORK-STATION-master\hot_air_gun_station_V1.0\hot_air_gun_station_V1.0.ino: In member function 'void DSPL::init()':
hot_air_gun_station_V1.0:403:30: error: no matching function for call to 'DSPL::begin()'
     LiquidCrystal_I2C::begin();
                              ^
In file included from D:\Electronics\Hot Air Station\ARDUINO-SMD-REWORK-STATION-master\hot_air_gun_station_V1.0\hot_air_gun_station_V1.0.ino:8:0:
C:\Users\...\Documents\Arduino\libraries\LiquidCrystal_I2C-1.1.3/LiquidCrystal_I2C.h:58:8: note: candidate: void LiquidCrystal_I2C::begin(uint8_t, uint8_t, uint8_t)
   void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS );
        ^~~~~
C:\Users\...\Documents\Arduino\libraries\LiquidCrystal_I2C-1.1.3/LiquidCrystal_I2C.h:58:8: note:   candidate expects 3 arguments, 0 provided
exit status 1
no matching function for call to 'DSPL::begin()'

For a little bit of context, this is part of the code display

//------------------------------------------ class lcd DSPLay for soldering IRON -----------------------------
class DSPL : protected LiquidCrystal_I2C {
    public:
        DSPL(void) : LiquidCrystal_I2C(0x27, 16, 2) { }
        void    init(void);
        void    clear(void)                                                 { LiquidCrystal_I2C::clear(); }
        void    tSet(uint16_t t, bool Celsius = true);                      // Show the preset temperature
        void    tCurr(uint16_t t);                                          // Show the current temperature
        void    tInternal(uint16_t t);                                      // Show the current temperature in internal units
        void    tReal(uint16_t t);                                          // Show the real temperature in Celsius in calibrate mode
        void    fanSpeed(uint8_t s);                                        // Show the fan speed
		void	appliedPower(uint8_t p, bool show_zero = true);			    // Show applied power (%)
        void    setupMode(uint8_t mode);
        void    msgON(void);                                                // Show message: "ON"
        void    msgOFF(void);
        void    msgReady(void);
        void    msgCold(void);
        void    msgFail(void);                                              // Show 'Fail' message
        void    msgTune(void);                                              // Show 'Tune' message
    private:
        bool 	full_second_line;                                           // Whether the second line is full with the message
		char 	temp_units;
        const   uint8_t custom_symbols[3][8] = {
                          { 0b00110,                                        // Degree
                            0b01001,
                            0b01001,
                            0b00110,
                            0b00000,
                            0b00000,
                            0b00000,
                            0b00000
                          },
                          { 0b00100,                                        // Fan sign
                            0b01100,
                            0b01100,
                            0b00110,
                            0b01011,
                            0b11001,
                            0b10000,
                            0b00000
                          },
                          { 0b00011,                                        // Power sign
                            0b00110,
                            0b01100,
                            0b11111,
                            0b00110,
                            0b01100,
                            0b01000,
                            0b10000
                          }
                        };
};

void DSPL::init(void) {
    LiquidCrystal_I2C::begin();
    LiquidCrystal_I2C::clear();
    for (uint8_t i = 0; i < 3; ++i)
        LiquidCrystal_I2C::createChar(i+1, (uint8_t *)custom_symbols[i]);
    full_second_line = false;
	temp_units = 'C';
}
2

There are many different LiquidCrystal_I2C libraries; they all have different constructors and begin() methods. You need to look at the examples that come with the specific library (constructor and begin method) but I think that you have figured that out.

I can't help you further.

3

I figured this problem out so if anyone else has the same issue can do this:
Change this code

'DSPL::begin()'

With

'DSPL::init()'

This will resolve the error.
Have fun

4

You should post a direct link to the library you used.

5

It's solved.
Even the code's author didn't know what library he had used.
The code had other problems too that I had to fix.