#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Keypad.h>
#define TINGGI_LAYAR 64 // Tinggi layar OLED yang digunakan
#define LEBAR_LAYAR 128 // Lebar layar OLED yang digunakan
const byte ROWS = 4; //Jumlah baris keypad
const byte COLS = 4; //Jumlah kolom keypad
int buzzer = 25;
int BUZZER_CHANNEL = 0;
int ledm = 26;
int ledh = 27;
Adafruit_SSD1306 oled(LEBAR_LAYAR, TINGGI_LAYAR, &Wire, -1);
char Keys[ROWS][COLS] = { //Membuat array keypad
{'1','2','3','A'},
{'4','5','6','B'},
{'7','8','9','C'},
{'*','0','#','D'}
};
byte rowPins[ROWS] = { 14, 12, 19, 18 };
byte colPins[COLS] = { 5, 4, 2, 15 };
Keypad customKeypad = Keypad( makeKeymap(Keys), rowPins, colPins, ROWS, COLS); //Masukkan info keypad pada library
char customKey; //Variabel penampung input keypad
int number = 0; //Variabel penampung nilai angka
int password = 1379; //Password
void setup() {
Serial.begin(9600);
pinMode(buzzer, OUTPUT);
ledcAttachPin(buzzer, BUZZER_CHANNEL);
pinMode(ledm, OUTPUT);
pinMode(ledh, OUTPUT);
// initialize OLED display with I2C address 0x3C
if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
Serial.println(("Gagal Memulai OLED"));
while (1);
}
oled.clearDisplay();
oled.setTextSize(1); // Atur ukuran text
oled.setTextColor(WHITE); // Atur warna text
oled.setCursor(20, 20); // Atur posisi text pada display
oled.println("SELAMAT DATANG"); // Text yang dicetak
delay(200);
oled.setTextSize(1); // Atur ukuran text
oled.setTextColor(WHITE); // Atur warna text
oled.setCursor(30, 30); // Atur posisi text pada display
oled.println("SALAM KENAL"); // Text yang dicetak
delay(200);
oled.display();
oled.clearDisplay();// menampilkan display OLED
}
void loop() {
oled.setTextSize(1);
oled.setTextColor(WHITE);
oled.setCursor(0,0);
oled.print("Input Password"); //Tampilan pada layar LCD
customKey = customKeypad.getKey(); //Baca input keypad
//------------Prosedur jika input berupa angka------------//
switch(customKey){
case '0' ... '9':
oled.setTextSize(1);
oled.setTextColor(WHITE);
oled.setCursor(0,10);
number = number * 10 + (customKey - '0');
oled.print(number);
oled.display();
oled.clearDisplay();
break;
//------------Jika input '#' maka cek password------------//
case '#':
if(number == password){ //Jika password benar, maka
oled.setTextSize(1);
oled.setTextColor(WHITE);
oled.setCursor(0,10);
oled.print("Akses DITERIMA "); //Tampilan LCD
oled.display();
oled.clearDisplay();
number = 0;
digitalWrite(ledh, HIGH);
tone(buzzer,150,100);
delay(2000);
digitalWrite(ledh, LOW);
delay(2000);
}
else{ //Jika salah, maka
oled.setTextSize(1);
oled.setTextColor(WHITE);
oled.setCursor(0,10);
oled.print("Password SALAH"); //Tampilan LCD
delay(200);
oled.display();
oled.clearDisplay();
number = 0;
digitalWrite(ledm, HIGH);
tone(buzzer,100,1000);
delay(2000);
digitalWrite(ledm, LOW);
delay(2000);
}
break;
//------------Jika input '*' maka hapus tampilan------------//
case '*':
number = 0;
oled.clearDisplay();
break;
}
}
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esp:GND.2
esp:D13
esp:D12
esp:D14
esp:D27
esp:D26
esp:D25
esp:D33
esp:D32
esp:D35
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esp:VN
esp:VP
esp:EN
esp:3V3
esp:GND.1
esp:D15
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esp:RX2
esp:TX2
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esp:D18
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esp:RX0
esp:TX0
esp:D22
esp:D23
oled1:GND
oled1:VCC
oled1:SCL
oled1:SDA
keypad1:R1
keypad1:R2
keypad1:R3
keypad1:R4
keypad1:C1
keypad1:C2
keypad1:C3
keypad1:C4
bz1:1
bz1:2
led1:A
led1:C
led2:A
led2:C
r1:1
r1:2
r2:1
r2:2