Sending strings to LCD

/*
 * sendAStringToLCD.cpp
 *
 * Created: 20-09-2024 11:42:48
 * Author : subrs
 */ 
#define F_CPU 1000000UL
#include <avr/io.h>
#include <util/delay.h>

#define LCD_Data_Pins			PORTB
#define LCD_Data_Pins_DDR		DDRB
#define LCD_Control_Pins		PORTD
#define LCD_Control_Pins_DDR	DDRD

#define Enable				PIND5
#define ReadWrite			PIND7
#define RS					PIND2

void Check_If_LCD_Is_Busy(void);
void setEnable(void);
void sendCommand(unsigned char command);
void sendCharacter(unsigned char character);
void sendString(unsigned char *stringOfCharacters);

int main(void)
{
	unsigned char message[] = "999";
	LCD_Control_Pins_DDR = 0xFF;
	LCD_Control_Pins |= 1 << Enable | 1 << ReadWrite | 1 << RS;
	_delay_ms(15);
	
	sendCommand(0x01);		// command for clearing the screen in LCD is 0x01
	_delay_ms(2);
	sendCommand(0x38);		// command for 8 bit mode
	_delay_us(50);
	sendCommand(0b00001111);
	_delay_us(50);
	
	sendString(message);
	
    while (1) 
    {
		
    }
}

void Check_If_LCD_Is_Busy(void)
{
	LCD_Data_Pins_DDR = 0X00;
	LCD_Control_Pins |= 1 << ReadWrite;
	LCD_Control_Pins &= ~(1 << RS);
	
	while(LCD_Data_Pins >= 0x80)
	{
		setEnable();
	}
	
	LCD_Data_Pins_DDR = 0XFF;
}

void setEnable(void)
{
	LCD_Control_Pins |= 1 << Enable;
	asm volatile ("nop"); 
	asm volatile ("nop"); 
	LCD_Control_Pins &= ~(1 << Enable);
}

void sendCommand(unsigned char command)
{
	Check_If_LCD_Is_Busy();
	LCD_Data_Pins = command;
	LCD_Control_Pins &= ~(1 << ReadWrite) | (1 << RS);
	setEnable();
	LCD_Data_Pins = 0;
}

void sendCharacter(unsigned char character)
{
	Check_If_LCD_Is_Busy();
	LCD_Data_Pins = character;
	LCD_Control_Pins &= ~(1 << ReadWrite);
	LCD_Control_Pins |= 1 << RS;
	setEnable();
	LCD_Data_Pins = 0;
}

void sendString(unsigned char *stringOfCharacters)
{
	while (*stringOfCharacters > 0)
	{
		sendCharacter(*stringOfCharacters ++);
	}
}