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+#include<wiringPi.h>
+#define LED_ON 1
+#define LED_OFF 0
+const int Led[16]={4,17,18,27,22,23,24,25,6,12,13,16,19,20,26,21};
+
+void LEDControl(int pinnum){
+	int i;
+	for(i=0;i<16;i++){
+		if(i==pinnum) 
+			digitalWrite(Led[i],LED_ON);
+		else 
+			digitalWrite(Led[i],LED_OFF);
+	}
+}
+
+int main(void){
+	int i;
+	if(wiringPiSetupGpio()==-1) 
+		return 1;
+	for(i=0;i<16;i++){
+		pinMode(Led[i],OUTPUT);
+		digitalWrite(Led[i],LED_OFF);
+	}
+	while(1){
+		for(i=0;i<16;i+=2){
+			LEDControl(i); 
+			delay(500);
+		}
+		for(i=1;i<16;i+=2){
+			LEDControl(i); 
+			delay(500);
+		}
+	}
+	return 0;
+}
+

+#include<wiringPi.h>
+#define LED_ON 1
+#define LED_OFF 0
+const int Led[16]={4,17,18,27,22,23,24,25,6,12,13,16,19,20,26,21};
+
+void LEDControl(int pinnum){
+	int i;
+	for(i=0;i<16;i++){
+		if(i==pinnum || i==pinnum+1) 
+			digitalWrite(Led[i],LED_ON);
+		else 
+			digitalWrite(Led[i],LED_OFF);
+	}
+}
+
+int main(void){
+	int i;
+	if(wiringPiSetupGpio()==-1) 
+		return 1;
+	for(i=0;i<16;i++){
+		pinMode(Led[i],OUTPUT);
+		digitalWrite(Led[i],LED_OFF);
+	}
+	while(1){
+		for(i=0;i<16;i+=2){
+			LEDControl(i);
+			delay(500);
+		}
+	}
+	return 0;
+}
+

+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#define GPIO_BASE 0x3F200000 
+#define GPFSEL1 0x04 
+#define GPSET0 0x1C 
+#define GPCLR0 0x28 
+
+int main() { 
+	int fd = open( "/dev/mem", O_RDWR|O_SYNC ); 
+	if ( fd < 0 ){ 
+		printf( "can't open /dev/mem \n" ); 
+		exit(-1); 
+	} 
+
+	char *gpio_memory_map
+	  = (char *)mmap(0, 4096, PROT_READ|PROT_WRITE, 
+				 MAP_SHARED, fd, GPIO_BASE ); 
+
+	if ( gpio_memory_map == MAP_FAILED ) { 
+		printf( " Error : mmap \n" ); 
+		exit(-1); 
+	}
+
+	volatile unsigned int* gpio 
+		= (volatile unsigned int*)gpio_memory_map; 
+
+	gpio[GPFSEL1/4] = (1<<24); 
+
+	int i; 
+	for ( i=0; i<5; i++ ) {
+		gpio[GPCLR0/4] = (1<<18); 
+		sleep(1); 
+
+		gpio[GPSET0/4] = (1<<18); 
+		sleep(1); 
+	} 
+	
+	munmap( gpio_memory_map, 4096); 
+	return 0; 
+} 
+
+
+
+

+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#define GPIO_BASE 0x3F200000 
+#define GPFSEL1 0x04 
+#define GPSET0 0x1C 
+#define GPCLR0 0x28 
+
+int main() { 
+	int fd = open( "/dev/mem", O_RDWR|O_SYNC ); 
+	if ( fd < 0 ){ 
+		printf( "can't open /dev/mem \n" ); 
+		exit(-1); 
+	} 
+
+	char *gpio_memory_map
+	  = (char *)mmap(0, 4096, PROT_READ|PROT_WRITE, 
+				 MAP_SHARED, fd, GPIO_BASE ); 
+
+	if ( gpio_memory_map == MAP_FAILED ) { 
+		printf( " Error : mmap \n" ); 
+		exit(-1); 
+	}
+
+	volatile unsigned int* gpio 
+		= (volatile unsigned int*)gpio_memory_map; 
+
+	gpio[GPFSEL1/4] = (1<<18); 
+
+	int i; 
+	for ( i=0; i<5; i++ ) {
+		gpio[GPCLR0/4] = (1<<16); 
+		sleep(1); 
+
+		gpio[GPSET0/4] = (1<<16); 
+		sleep(1); 
+	} 
+	
+	munmap( gpio_memory_map, 4096); 
+	return 0; 
+} 
+
+
+
+

+#include<wiringPi.h>
+#define LED_ON 1
+#define LED_OFF 0
+const int Led[16]={4,17,18,27,22,23,24,25,6,12,13,16,19,20,26,21};
+
+void LEDControl(int pinnum){
+	int i;
+	for(i=0;i<16;i++){
+		if(i==pinnum) 
+			digitalWrite(Led[i],LED_ON);
+		else 
+			digitalWrite(Led[i],LED_OFF);
+	}
+}
+
+int main(void){
+	int i;
+	if(wiringPiSetupGpio()==-1) 
+		return 1;
+	for(i=0;i<16;i++){
+		pinMode(Led[i],OUTPUT);
+		digitalWrite(Led[i],LED_OFF);
+	}
+	while(1){
+		for(i=0;i<16;i++){
+			LEDControl(i); 
+			delay(500);
+		}
+	}
+	return 0;
+}
+

+#include <wiringPi.h>
+const int LedRed[8] = { 4, 17, 18, 27, 22, 23, 24, 25 }; 
+const int Keypad[8] = { 16, 13, 12, 6, 21, 26, 20, 19 }; 
+int LedON[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+int lastKey[8] = { 1, 1, 1, 1, 1, 1, 1, 1 };
+
+int KeypadRead() { 
+	int i, keypadnum=-1; 
+	for(i=0; i<8; i++) { 
+		if(!digitalRead(Keypad[i]) && lastKey[i]==1) { 
+			keypadnum = i; 
+			lastKey[i]=0;
+			break; 
+		}
+		else if(digitalRead(Keypad[i]) && lastKey[i]==0)
+			lastKey[i]=1;
+	} 
+	return keypadnum; 
+} 
+void LedControl(int keypadnum) { 
+	int i; 
+	for(i=0; i<8; i++) { 
+		if(i==keypadnum) {
+			LedON[i]=!LedON[i];
+			digitalWrite(LedRed[i], LedON[i]);}
+	} 
+} 
+int main(void) { 
+	int i, keypadnum=-1; 
+	
+	if(wiringPiSetupGpio() == -1) 
+		return 1; 
+	
+	for(i=0; i<8; i++) { 
+		pinMode(LedRed[i], OUTPUT); 
+		digitalWrite(LedRed[i], LedON[i]); 
+	} 
+
+	for(i=0; i<8; i++) 
+		pinMode(Keypad[i], INPUT); 
+
+	while(1) { 
+		keypadnum = KeypadRead(); 
+		LedControl(keypadnum); 
+	} 
+	return 0; 
+}

+#include <wiringPi.h>
+const int LedRed[8] = { 4, 17, 18, 27, 22, 23, 24, 25 }; 
+const int Keypad[5] = { 6, 12, 13, 16, 19 }; 
+int state=0;
+
+void checkKey3(){
+	if(KeypadRead()==2)
+		state=0;
+}
+int KeypadRead() { 
+	int i, keypadnum=-1; 
+	for(i=0; i<8; i++) { 
+		if(!digitalRead(Keypad[i])) { 
+			keypadnum = i; 
+			break; 
+		} 
+	} 
+	return keypadnum; 
+} 
+void LedControl(int num) { 
+	int i; 
+	for(i=0; i<8; i++) { 
+		checkKey3();
+		if(state==0)
+			return;
+		if(i==num) 
+			digitalWrite(LedRed[i], HIGH); 
+		else 
+			digitalWrite(LedRed[i], LOW); 
+	} 
+} 
+void LedON(int order){
+	int i;
+	if(order==1){
+		for(i=0; i<8; i++) { 
+			LedControl(i);
+			if(state==0)
+				return; 
+			delay(500); 
+		} 
+		LedControl(-1); 
+	}
+	else if (order==-1){
+		for(i=7; i>=0; i--) { 
+			LedControl(i);
+			if(state==0)
+				return; 
+			delay(500); 
+		} 
+		LedControl(-1);  
+	}	
+}
+int main(void) { 
+	int i, keypadnum=-1; 
+	if(wiringPiSetupGpio() == -1) 
+		return 1; 
+	for(i=0; i<8; i++) { 
+		pinMode(LedRed[i], OUTPUT); 
+		digitalWrite(LedRed[i], LOW); 
+	} 
+	for(i=0; i<5; i++) 
+		pinMode(Keypad[i], INPUT); 
+	while(1) { 
+		state=0;
+		keypadnum = KeypadRead(); 
+		if(keypadnum== 3) { 
+			state=1;
+			LedON(1);
+		} 
+		else if(keypadnum== 4) {
+			state=1; 
+			LedON(-1); 		
+		} 
+		else if(keypadnum== 0){
+			while(1){
+				state=1;
+				LedON(1);
+				if(state==0)
+					break;
+			}
+		}
+		else if(keypadnum== 1){
+			while(1){
+				state=1;
+				LedON(-1);
+				if(state==0)
+					break;
+			}
+		}				
+	} 
+	return 0; 
+}
+
+

+#include <wiringPi.h>
+const int LedRed[8] = { 4, 17, 18, 27, 22, 23, 24, 25 }; 
+const int Keypad[8] = { 16, 13, 12, 6, 21, 26, 20, 19 }; 
+
+int KeypadRead() { 
+	int i, keypadnum=-1; 
+	for(i=0; i<8; i++) { 
+		if(!digitalRead(Keypad[i])) { 
+			keypadnum = i; 
+			break; 
+		} 
+	} 
+	return keypadnum; 
+} 
+void LedControl(int keypadnum) { 
+	int i; 
+	for(i=0; i<8; i++) { 
+		if(i==keypadnum) 
+			digitalWrite(LedRed[i], HIGH); 
+		else 
+			digitalWrite(LedRed[i], LOW); 
+	} 
+} 
+int main(void) { 
+	int i, keypadnum=-1; 
+	
+	if(wiringPiSetupGpio() == -1) 
+		return 1; 
+	
+	for(i=0; i<8; i++) { 
+		pinMode(LedRed[i], OUTPUT); 
+		digitalWrite(LedRed[i], LOW); 
+	} 
+
+	for(i=0; i<8; i++) 
+		pinMode(Keypad[i], INPUT); 
+
+	while(1) { 
+		keypadnum = KeypadRead(); 
+		LedControl(keypadnum); 
+	} 
+	return 0; 
+}
\ No newline at end of file

+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+const int FndSelectPin[6] = { 4, 17, 18, 27, 22, 23 };
+const int FndPin[8] = { 6, 12, 13, 16, 19, 20, 26, 21 };
+const int FndFont[6] = { 0x00, 0x76, 0x79, 0x38, 0x38, 0x3F };
+
+void init(){
+	int i;
+	if( wiringPiSetupGpio() == -1 ){
+		printf( "wiringPiSetupGpio() error\n" );
+		exit(-1);
+	}
+	for(i=0;i<6;i++){
+		pinMode( FndSelectPin[i], OUTPUT );
+		digitalWrite( FndSelectPin[i], HIGH );
+	}
+	for(i=0;i<8;i++){
+		pinMode( FndPin[i], OUTPUT );
+		digitalWrite( FndPin[i], LOW );
+	}
+}
+void FndSelect(int position){
+	int i;
+	for(i=0;i<6;i++){
+		if(i==position){
+			digitalWrite(FndSelectPin[i],LOW);
+		}
+		else{
+			digitalWrite(FndSelectPin[i],HIGH);
+		}
+	}
+}
+void FndDisplay(int position, int num){
+	int i;
+	int flag=0;
+	int shift=0x01;
+
+	for(i=0;i<8;i++){
+		flag=(FndFont[num]&shift);
+		digitalWrite(FndPin[i], flag);
+		shift<<=1;
+	}
+	FndSelect(position);
+}
+int main(){
+	int pos;
+	int data[6]={5,4,3,2,1,0};
+	init();
+	int i=0;
+	unsigned long prevtime=millis();
+	while(1){
+		unsigned long curtime=millis();
+		if(curtime-prevtime > 500){
+			i+=1;
+			i=i%6;
+			prevtime=curtime;
+		}
+		for(pos=0;pos<6;pos++){
+			FndDisplay((pos+i)%6,data[pos]);
+			delay(1);
+		}
+	}
+	return 0;
+}
\ No newline at end of file

+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+const int FndSelectPin[6] = { 4, 17, 18, 27, 22, 23 };
+const int FndPin[8] = { 6, 12, 13, 16, 19, 20, 26, 21 };
+const int FndFont[10] = { 0x3F, 0x06, 0x5B, 0x4F, 0x66,
+			  0x6D, 0x7D, 0x07, 0x7F, 0x67 };
+
+void init(){
+	int i;
+	if( wiringPiSetupGpio() == -1 ){
+		printf( "wiringPiSetupGpio() error\n" );
+		exit(-1);
+	}
+	for(i=0;i<6;i++){
+		pinMode( FndSelectPin[i], OUTPUT );
+		digitalWrite( FndSelectPin[i], HIGH );
+	}
+	for(i=0;i<8;i++){
+		pinMode( FndPin[i], OUTPUT );
+		digitalWrite( FndPin[i], LOW );
+	}
+}
+void FndSelect(int position){
+	int i;
+	for(i=0;i<6;i++){
+		if(i==position){
+			digitalWrite(FndSelectPin[i],LOW);
+		}
+		else{
+			digitalWrite(FndSelectPin[i],HIGH);
+		}
+	}
+}
+void FndDisplay(int position, int num){
+	int i,number;
+	int flag=0;
+	int shift=0x01;
+	number=FndFont[num];
+	if(position==2)
+		number|=0x80;
+
+	for(i=0;i<8;i++){
+		flag=(number&shift);
+		digitalWrite(FndPin[i], flag);
+		shift<<=1;
+	}
+	FndSelect(position);
+}
+int main(){
+	int pos;
+	int time=0;
+	init();
+	unsigned long prevtime=millis();
+	while(1){
+		unsigned long curtime=millis();
+		if(curtime-prevtime > 10){
+			prevtime=curtime;
+			time++;
+		}
+		int data[6]={time%10, (time%100)/10, (time%1000)/100,
+			(time/1000)%10, (time/10000)%10, time/100000};
+		for(pos=0;pos<6;pos++){
+			FndDisplay(pos,data[pos]);
+			delay(1);
+		}
+	}
+	return 0;
+}
\ No newline at end of file

+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+const int FndSelectPin[6] = { 4, 17, 18, 27, 22, 23 };
+const int FndPin[8] = { 6, 12, 13, 16, 19, 20, 26, 21 };
+const int FndFont[10] = { 0x3F, 0x06, 0x5B, 0x4F, 0x66,
+			  0x6D, 0x7D, 0x07, 0x7F, 0x67 };
+
+void init(){
+	int i;
+	if( wiringPiSetupGpio() == -1 ){
+		printf( "wiringPiSetupGpio() error\n" );
+		exit(-1);
+	}
+	for(i=0;i<6;i++){
+		pinMode( FndSelectPin[i], OUTPUT );
+		digitalWrite( FndSelectPin[i], HIGH );
+	}
+	for(i=0;i<8;i++){
+		pinMode( FndPin[i], OUTPUT );
+		digitalWrite( FndPin[i], LOW );
+	}
+}
+void FndDisplay(int position, int num){
+	int i;
+	int flag=0;
+	int shift=0x01;
+
+	for(i=0;i<8;i++){
+		flag=(FndFont[num]&shift);
+		digitalWrite(FndPin[i], flag);
+		shift<<=1;
+	}
+	digitalWrite( FndSelectPin[position], LOW);
+}
+int main(int argc, char **argv){
+	if(argc != 3){
+		printf("Usage: %s [position][number]",argv[0]);
+		exit(-1);
+	}
+	init();
+	FndDisplay(atoi(argv[1]), atoi(argv[2]));
+	return 0;
+}
\ No newline at end of file

+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+const int FndSelectPin[6] = { 4, 17, 18, 27, 22, 23 };
+const int FndPin[8] = { 6, 12, 13, 16, 19, 20, 26, 21 };
+const int FndFont[10] = { 0x3F, 0x06, 0x5B, 0x4F, 0x66,
+			  0x6D, 0x7D, 0x07, 0x7F, 0x67 };
+
+void init(){
+	int i;
+	if( wiringPiSetupGpio() == -1 ){
+		printf( "wiringPiSetupGpio() error\n" );
+		exit(-1);
+	}
+	for(i=0;i<6;i++){
+		pinMode( FndSelectPin[i], OUTPUT );
+		digitalWrite( FndSelectPin[i], HIGH );
+	}
+	for(i=0;i<8;i++){
+		pinMode( FndPin[i], OUTPUT );
+		digitalWrite( FndPin[i], LOW );
+	}
+}
+void FndSelect(int position){
+	int i;
+	for(i=0;i<6;i++){
+		if(i==position){
+			digitalWrite(FndSelectPin[i],LOW);
+		}
+		else{
+			digitalWrite(FndSelectPin[i],HIGH);
+		}
+	}
+}
+void FndDisplay(int position, int num){
+	int i;
+	int flag=0;
+	int shift=0x01;
+
+	for(i=0;i<8;i++){
+		flag=(FndFont[num]&shift);
+		digitalWrite(FndPin[i], flag);
+		shift<<=1;
+	}
+	FndSelect(position);
+}
+int main(){
+	int pos;
+	int data[6]={0,1,2,3,4,5};
+	init();
+	while(1){
+		for(pos=0;pos<6;pos++){
+			FndDisplay(pos,data[pos]);
+			delay(1);
+		}
+	}
+	return 0;
+}
\ No newline at end of file

+#include <wiringPi.h>
+#include <softPwm.h>
+
+#define MOTOR_MT_N_PIN 17
+#define MOTOR_MT_P_PIN 4
+
+#define LEFT_ROTATE 1
+#define RIGHT_ROTATE 2
+
+void MotorStop() {
+	softPwmWrite(MOTOR_MT_N_PIN, 0);
+	softPwmWrite(MOTOR_MT_P_PIN, 0);
+}
+
+void MotorControl(int rotate, int speed) {
+	if (rotate == LEFT_ROTATE) {
+		digitalWrite(MOTOR_MT_P_PIN, LOW);
+		softPwmWrite(MOTOR_MT_N_PIN, speed);
+	}
+	else if (rotate == RIGHT_ROTATE) {
+		digitalWrite(MOTOR_MT_N_PIN, LOW);
+		softPwmWrite(MOTOR_MT_P_PIN, speed);
+	}
+}
+int main(void){
+	if (wiringPiSetupGpio() == -1)
+		return 1;
+
+	pinMode(MOTOR_MT_N_PIN, OUTPUT);
+	pinMode(MOTOR_MT_P_PIN, OUTPUT);
+
+	softPwmCreate(MOTOR_MT_N_PIN, 0, 128);
+	softPwmCreate(MOTOR_MT_P_PIN, 0, 128);
+	int i;
+	for(i=1;i<5;i++){
+		MotorControl(LEFT_ROTATE,i*32); 
+		delay(2000);
+		MotorStop(); 
+		delay(2000);
+	}
+	for(i=4;i>0;i--){
+		MotorControl(RIGHT_ROTATE,i*32); 
+		delay(2000);
+		MotorStop(); 
+		delay(2000);
+	}
+	return 0;
+}
+
+
+

+#include <wiringPi.h>
+#include <softPwm.h>
+
+#define LedPin 22
+
+int main(void){
+	if (wiringPiSetupGpio() == -1)
+		return 1;
+
+	pinMode(LedPin, OUTPUT);
+	softPwmCreate(LedPin, 0, 128);
+	int i;
+	while(1){
+		for(i=0;i<129;i+=8){
+			softPwmWrite(LedPin, i);
+			delay(100);
+		}
+		for(i=128;i>-1;i-=8){
+			softPwmWrite(LedPin,i); 
+			delay(100);
+		}
+	}
+	return 0;
+}
+
+
+

-#include <wiringPi.h> // GPIO Access Library 헤더파일 선언
-#include <softPwm.h> // Software PWM library 헤더파일 선언
-// Motor 핀 설정
+#include <wiringPi.h>
+#include <softPwm.h>
+
 #define MOTOR_MT_N_PIN 17
 #define MOTOR_MT_N_PIN 17
 #define MOTOR_MT_P_PIN 4
 #define MOTOR_MT_P_PIN 4
-// Motor 회전 방향 정의
+
 #define LEFT_ROTATE 1
 #define LEFT_ROTATE 1
 #define RIGHT_ROTATE 2
 #define RIGHT_ROTATE 2
-// Motor 정지 함수
+
 void MotorStop() {
 void MotorStop() {
-softPwmWrite(MOTOR_MT_N_PIN, 0);
-softPwmWrite(MOTOR_MT_P_PIN, 0);
+	softPwmWrite(MOTOR_MT_N_PIN, 0);
+	softPwmWrite(MOTOR_MT_P_PIN, 0);
 }
 }
-// Motor 회전 함수
+
 void MotorControl(int rotate) {
 void MotorControl(int rotate) {
-if (rotate == LEFT_ROTATE) {
-digitalWrite(MOTOR_MT_P_PIN, LOW);
-softPwmWrite(MOTOR_MT_N_PIN, 50);
+	if (rotate == LEFT_ROTATE) {
+		digitalWrite(MOTOR_MT_P_PIN, LOW);
+		softPwmWrite(MOTOR_MT_N_PIN, 50);
+	}
+	else if (rotate == RIGHT_ROTATE) {
+		digitalWrite(MOTOR_MT_N_PIN, LOW);
+		softPwmWrite(MOTOR_MT_P_PIN, 50);
+	}
 }
 }
-else if (rotate == RIGHT_ROTATE) {
-digitalWrite(MOTOR_MT_N_PIN, LOW);
-softPwmWrite(MOTOR_MT_P_PIN, 50);
+int main(void){
+	if (wiringPiSetupGpio() == -1)
+		return 1;
+
+	pinMode(MOTOR_MT_N_PIN, OUTPUT);
+	pinMode(MOTOR_MT_P_PIN, OUTPUT);
+
+	softPwmCreate(MOTOR_MT_N_PIN, 0, 100);
+	softPwmCreate(MOTOR_MT_P_PIN, 0, 100);
+	while (1){
+		MotorControl(LEFT_ROTATE); 
+		delay(2000);
+		MotorStop(); 
+		delay(1000);
+		MotorControl(RIGHT_ROTATE); 
+		delay(2000);
+		MotorStop();
+		delay(1000);
+	}
+	return 0;
 }
 }
-}
-int main(void)
-{
-if (wiringPiSetupGpio() == -1)
-return 1;
-// Motor 핀 출력으로 설정
-pinMode(MOTOR_MT_N_PIN, OUTPUT);
-pinMode(MOTOR_MT_P_PIN, OUTPUT);
-// Motor 핀 PWM 제어 핀으로 설정
-// 주기: 100ms
-softPwmCreate(MOTOR_MT_N_PIN, 0, 100);
-softPwmCreate(MOTOR_MT_P_PIN, 0, 100);
-while (1)
-{
-MotorControl(LEFT_ROTATE); // Motor 왼쪽으로 회전
-delay(2000);
-MotorStop(); // Motor 정지
-delay(1000);
-MotorControl(RIGHT_ROTATE); // Motor 오른쪽으로 회전
-delay(2000);
-MotorStop(); // Motor 정지
-delay(1000);
-}
-return 0;
-}
\ No newline at end of file
+