#include const byte rows = 4; //four rows const byte cols = 4; //three columns char keys[rows][cols] = { {'1','2','3','A'}, {'4','5','6','B'}, {'7','8','9','C'}, {'*','0','#','D'} }; byte rowPins[rows] = {9, 8, 7, 6}; //connect to the row pinouts of the keypad byte colPins[cols] = {5, 4, 3, 2}; //connect to the column pinouts of the keypad Keypad customKeypad = Keypad( makeKeymap(keys), rowPins,..

#include Servo myservo; // 서보모터 생성 int potpin = A0; //아날로그 핀 연결 int val; //핀 값 변수 void setup() { myservo.attach(9); Serial.begin(9600); } void loop() { val = analogRead(potpin); val = map(val, 0, 1023, 0, 180); myservo.write(val); Serial.println(val); delay(15); }

#include // 핀 선언 int red = 9; int green = 13; int blue = 10; int RECV_PIN = 11; IRrecv irrecv(RECV_PIN); decode_results results; void setup() { pinMode(red,OUTPUT); pinMode(green,OUTPUT); pinMode(blue,OUTPUT); Serial.begin(9600); irrecv.enableIRIn(); // start the receiver } void loop() { if(irrecv.decode(&results)){ Serial.println(results.value, HEX); irrecv.resume(); // receive the next value /..

/* LiquidCrystal Library - Hello World Demonstrates the use a 16x2 LCD display. The LiquidCrystal library works with all LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually tell them by the 16-pin interface. This sketch prints "Hello World!" to the LCD and shows the time. The circuit: * LCD RS pin to digital pin 12 * LCD Enable ..

- 아노드 + 연결 - 케소드 - 연결 일반방식으로 켜기 void setup() { pinMode(2, OUTPUT); pinMode(3, OUTPUT); pinMode(4, OUTPUT); } void loop() { digitalWrite(2, HIGH); digitalWrite(3, HIGH); digitalWrite(4, HIGH); delay(10); } 배열선언해서 켜기 byte num[3][7] = { {1,1,1,1,1,1,0}, {0,1,1,0,0,0,0}, {1,1,0,1,1,0,1} }; //3개의 숫자를 표현하기 위해 //각각 숫자마다 7개의 led관리하기 위해 void displayNum(int n){ for(int i=0; i