#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define ANALOG_INPUT1 34
#define ANALOG_INPUT2 35
#define DIGITAL_INPUT1 32
#define DIGITAL_INPUT2 33

#define LED1 2
#define LED2 4
#define LED3 16
#define LED4 5
#define RELAY1 25
#define RELAY2 26
#define RELAY3 27
#define RELAY4 14

const int analogThreshold = 512;
const char *message = "Alert!";

LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0x27, 16, 2);

void setup() {
    Serial.begin(115200);
    lcd.init();lcd.backlight();

    pinMode(ANALOG_INPUT1, INPUT);
    pinMode(ANALOG_INPUT2, INPUT);
    pinMode(DIGITAL_INPUT1, INPUT);
    pinMode(DIGITAL_INPUT2, INPUT);
    pinMode(LED1, OUTPUT);
    pinMode(LED2, OUTPUT);
    pinMode(LED3, OUTPUT);
    pinMode(LED4, OUTPUT);
    pinMode(RELAY1, OUTPUT);
    pinMode(RELAY2, OUTPUT);
    pinMode(RELAY3, OUTPUT);
    pinMode(RELAY4, OUTPUT);
}

void loop() {
    int analogValue1 = analogRead(ANALOG_INPUT1);
    int analogValue2 = analogRead(ANALOG_INPUT2);
    int digitalValue1 = digitalRead(DIGITAL_INPUT1);
    int digitalValue2 = digitalRead(DIGITAL_INPUT2);
    
    if (analogValue1 > analogThreshold) {
        lcd.setCursor(0, 0);lcd.print("Analog 1 Alert");
        
        digitalWrite(LED1, HIGH);
        digitalWrite(RELAY1, HIGH);
    }
    if (analogValue2 > analogThreshold) {
        lcd.setCursor(0, 1);lcd.print("Analog 2 Alert");
        
        digitalWrite(LED2, HIGH);
        digitalWrite(RELAY2, HIGH);
    }
    if (digitalValue1 == LOW) {
        lcd.setCursor(0, 0);lcd.print("Digital 1 Alert");
        
        digitalWrite(LED3, HIGH);
        digitalWrite(RELAY3, HIGH);
    }
    if (digitalValue2 == LOW) {
        lcd.setCursor(0, 1);lcd.print("Digital 2 Alert");
        
        digitalWrite(LED4, HIGH);
        digitalWrite(RELAY4, HIGH);
    }
    delay(1000);
}