Membuat Menu LCD Menggunakan Arduino

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Tutorial kali ini tentang membuat menu LCD menggunakan Arduino. Pada Tutorial ini menggunakan 3 push button yang berfungsi sebagai button up, down, dan select. Serta menggunakan LCD 16x2 sebagai display dari menu - menu tersebut

Alat dan Bahan

• Arduino Uno 
• LCD 16x2 
• Push Button 3 
• Kabel Jumper Secukupnya 

Rangkaian

Koneksi Arduino Dengan LCD16x2 

Listing Program

	#include <SoftwareSerial.h>
	LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
	int currentMenuItem = 0;
	int lastState = 0;
	int up = A1;
	int down = A2;
	int left = A3;
	int right = A4;
	int enter = A5;
	void setup() {
	pinMode(up, INPUT_PULLUP);
	pinMode(down, INPUT_PULLUP);
	pinMode(left, INPUT_PULLUP);
	pinMode(right, INPUT_PULLUP);
	pinMode(enter, INPUT_PULLUP);
	lcd.begin(16, 2);
	lcd.setCursor(0,0);
	lcd.print("Tutor bagus");
	lcd.setCursor(0,1);
	lcd.print("membuat Menu");
	delay(2000);
	lcd.clear();
	lcd.setCursor(0,0);
	lcd.print(" Menu 1");
	lcd.setCursor(0,1);
	lcd.print(" Menu 2");
	}
	void loop() {
	mainmenu();
	}
	void mainmenu(){
	int state = 0;
	if (digitalRead(up) == LOW){
	state = 1;
	}
	else if(digitalRead(down) == LOW){
	state = 2;
	}
	else if(digitalRead(enter) == LOW){
	state = 3;
	}
	if (currentMenuItem &lt; 0 || currentMenuItem &gt; 4){
	currentMenuItem = 0;
	}
	if (state != lastState) {
	if (state ==1 ){
	currentMenuItem = currentMenuItem - 1;
	displayMenu(currentMenuItem);\
	}
	else if (state == 2){
	currentMenuItem = currentMenuItem + 1;
	displayMenu(currentMenuItem);
	}
	else if (state == 3){
	selectMenu(currentMenuItem);
	}
	lastState = state;
	}
	delay(5);
	}
	void displayMenu(int x){
	switch(x){
	case 1:
	lcd.clear();
	lcd.setCursor(0,0);
	lcd.write(char(220));
	lcd.print(" Menu 1");
	lcd.setCursor(0,1);
	lcd.print(" Menu 2");
	break;
	case 2:
	lcd.clear();
	lcd.setCursor(0,0);
	lcd.print(" Menu 1");
	lcd.setCursor(0,1);
	lcd.write(char(220));
	lcd.print(" Menu 2");
	break;
	case 3:
	lcd.clear();
	lcd.setCursor(0,0);
	lcd.write(char(220));
	lcd.print(" Menu 3");
	lcd.setCursor(0,1);
	lcd.print(" Menu 4");
	break;
	case 4:
	lcd.clear();
	lcd.setCursor(0,0);
	lcd.print(" Menu 3");
	lcd.setCursor(0,1);
	lcd.write(char(220));
	lcd.print(" Menu 4");
	break;
	}
	}
	void selectMenu(int x){
	switch(x){
	case 1:
	lcd.clear();
	lcd.print("menu 1 Dipilih");
	break;
	case 2:
	lcd.clear();
	lcd.print("menu 2 Dipilih");
	break;
	case 3:
	lcd.clear();
	lcd.print("menu 3 Dipilih");
	break;
	case 4:
	lcd.clear();
	lcd.print("menu 4 Dipilih");
	break;
	}
	}

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