#define F_CPU 8000000UL
#define __DELAY_BACKWARD_COMPATIBLE__
#include <avr/io.h>
#include <util/delay.h>
 
	char c;
//
void USART_Init(unsigned int ubrr);
void USART_TX(unsigned char data);
unsigned char USART_RX();
void USART_Flush();
unsigned char CHKchar();
 
 
//
void RC_Motor(int angle){ // angle:-90도~+90도
  int i;
  if(angle<-90)angle=-90;
  if(angle> 90)angle= 90;
  i=(angle)*12+1499;
  OCR1A=i; //PB5
}
void USART_Init(unsigned int ubrr)
{
    UBRR1H = (unsigned char)(ubrr>>8);
    UBRR1L = (unsigned char)ubrr;
    UCSR1B = (1<<RXEN1)|(1<<TXEN1);
    UCSR1C = 0x06;   // UART Mode, 8 Bit Data, No Parity, 1 Stop Bit 
}
 
void USART_TX(unsigned char data) 			// Transmit
{
    while ( !( UCSR1A & (1<<UDRE1)) );
    UDR1 = data;
}
 
unsigned char USART_RX() 					// Receive
{
    while ( !(UCSR1A & (1<<RXC1)) );
    return UDR1;
}
 
unsigned char CHKchar()
{
	if(UCSR1A & (1<<RXC1)) //수신 문자가 있으면 1
		return(1); //1 리턴
	else
		return(0);
}
void USART_Flush()					// Flush
{
    unsigned char dummy;
    while ( UCSR1A & (1<<RXC1) ) dummy = UDR1;
}
//
int main(){
 
	unsigned int num[10][8] = {
		{0x18, 0x24, 0x24, 0x24, 0x24, 0x24, 0x24, 0x18}, // 0
		{0x3E, 0x08, 0x08, 0x08, 0x08, 0x28, 0x18, 0x08}, // 1
		{0x7E, 0x20, 0x10, 0x08, 0x04, 0x42, 0x42, 0x3C}, // 2
		{0x3C, 0x42, 0x02, 0x02, 0x3C, 0x02, 0x42, 0x3C}, // 3
		{0x08, 0x08, 0x08, 0xFF, 0x48, 0x28, 0x18, 0x08}, // 4
		{0x7C, 0x02, 0x02, 0x02, 0x7C, 0x40, 0x40, 0x7E}, // 5
		{0x3C, 0x42, 0x42, 0x42, 0x7C, 0x40, 0x42, 0x3C}, // 6/
		{0x04, 0x04, 0x04, 0x04, 0x04, 0x24, 0x24, 0x3C}, // 7
		{0x3C, 0x42, 0x42, 0x42, 0x3C, 0x42, 0x42, 0x3C}, // 8
		{0x3C, 0x42, 0x02, 0x02, 0x3E, 0x42, 0x42, 0x3C} // 9
	};
 
	unsigned int Dot_Com[8] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80};
 
	unsigned int Tem_tx[10] = {0,1,2,3,4,5,6,7,8,9};
 
	int sec, j;
	unsigned char ADCresult;
 
	DDRA = 0xFF;
	DDRB = 0x20;
	DDRC = 0xFF;
	DDRD = 0xFF;
 
	ADMUX = 0xE0;//REFS 11 : Internal 2.5v w/ ext.capacitor
				 //ADLAR 1 : Left adjust ena.
				 //MUX 00000 : select ADC0 (No gain)
	ADCSR = 0xA7; //ADEN 1 : Enable
				  //ADSC 0 : Start Conversion
				  //ADFR 1 : Free Running Select
				  //ADIF 0 : Interrupt Flag
				  //ADIE 0 : Interrupt Ena.
				  //ADPS 111 : Prescaler 128
	ADCSR |= 0x40; //0100 0000 : Start Conversion
  
	TCCR1A=0x82;
	TCCR1B=0x1A;
	OCR1A=1499;
	ICR1=19999;
 
	USART_Init(12);
 
  while(1){
 
  		while( (ADCSR & 0x10) == 0); //0001 0000 : Interrupt Flag 0 -> 1 
 
		ADCSR |= 0x10; // ADCF 비트 클리어
 
		ADCresult = ADCH; // 변환 결과를 읽음
 
		for(sec=0; sec<10; sec++) {
			for(j=0; j<8; j++) {
			PORTC = (num[ADCresult%100/10][j]);
			PORTD = num[ADCresult%10][j];			
			PORTA = Dot_Com[j];
			USART_TX(Tem_tx[ADCresult%100/10]*10+Tem_tx[ADCresult%10]);
			_delay_ms(1);
			
			}
		}
	
 
  	if(!CHKchar()) //CHKchar = 0 일때(수신 문자가 없을때)
		{
			continue;
		}
 
		c = USART_RX();
		
		
	
   
    if(c=='1'){RC_Motor(90);_delay_ms(1);}
    if(c=='2'){RC_Motor(  0);_delay_ms(1);}
  
	}
}
 
 
코드는 이러한 형태이며 텍스트 표기는 이미지 처럼 나오고 있고 앱인벤터는 이미지처럼 설정 했습니다.
어느 부분을 수정하면 앞에 있는 괄호가 사라지나요?