#define BLYNK_TEMPLATE_ID "TMPL6cSRcr9Oy"
#define BLYNK_TEMPLATE_NAME "project"
#define BLYNK_AUTH_TOKEN "R8mVYEX2paCq3J1tX1PVKxo2HjmfjxTy"
#define BLYNK_PRINT Serial

//import library
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <ESP32Servo.h>
#include <WiFi.h>
#include <ThingSpeak.h>
#include <BlynkSimpleEsp32.h>

#define trigPin1 12 // Pin trigger sensor ultrasonik pakan
#define echoPin1 14 // Pin echo sensor ultrasonik pakan
#define echoPin2 5  // Pin echo sensor ultrasonik air
#define servoPinPakan 19 // Pin servo pakan pada ESP32 (sesuaikan dengan pin yang Anda gunakan)
//pin led untuk indikator pakan
#define ledRed 25
#define ledYellow 26
#define ledGreen 27


char auth[] = BLYNK_AUTH_TOKEN; // Auth Token
char ssid[] = "Wokwi-GUEST";   // Nama hotspot yang digunakan
char pass[] = "";               // Password hotspot yang digunakan

WiFiClient alfa;
unsigned long ChannelID_1 = 2366245;
const char *WriteAPI_1 = "EO96SSSU4QA7H9LN";
unsigned long ChannelID_2 = 2366861;
const char *WriteAPI_2 = "O2UBZUMRBK4BVQAF";
Servo servoPakan;


long duration1, distance1;
long duration2, distance2;

LiquidCrystal_I2C lcd(0x27, 16, 2);

void sendSensorDataToBlynk(long distance1, long distance2)
{
    Blynk.virtualWrite(V0, distance1); // Virtual pin V0 for Pakan distance
}

void setup()
{
    Serial.begin(9600);
    pinMode(trigPin1, OUTPUT);
    pinMode(echoPin1, INPUT);

    pinMode(ledRed, OUTPUT);
    pinMode(ledYellow, OUTPUT);
    pinMode(ledGreen, OUTPUT);

    servoPakan.attach(servoPinPakan);


    // Inisialisasi LCD
    lcd.begin(16, 2);
    ThingSpeak.begin(alfa);
    Blynk.begin(auth, ssid, pass);
}

void updateLCDPakan(long distance1)
{
    lcd.clear();
    lcd.init();           // Inisialisasi LCD
    lcd.backlight();      // Nyalakan backlight
    lcd.setCursor(0, 0);
    lcd.print("Pakan: ");
    lcd.print(distance1);
    lcd.print(" cm");
}


BLYNK_WRITE(V1)
{
    int value = param.asInt();
    if (value == 1 && distance1 > 100 && distance1 < 200)
    {
        servoPakan.write(180); // Buka Pakan
        digitalWrite(ledRed, LOW);
        digitalWrite(ledYellow, HIGH);
        digitalWrite(ledGreen, LOW);
        delay(1000);
    }
    else if (value == 0 && distance1 > 100 && distance1 < 200)
    {
        servoPakan.write(90); // Tutup Pakan
    }
}

void loopPakan()
{
    digitalWrite(trigPin1, LOW);
    delayMicroseconds(2);
    digitalWrite(trigPin1, HIGH);
    delayMicroseconds(10);
    digitalWrite(trigPin1, LOW);
    duration1 = pulseIn(echoPin1, HIGH);
    distance1 = (duration1 / 2) * 0.0343;

    Serial.print("Distance Sensor Pakan: ");
    Serial.print(distance1);
    Serial.println(" cm");
    Blynk.virtualWrite(V0, distance1);

    int x = ThingSpeak.writeField(ChannelID_1, 1, distance1, WriteAPI_1);

    if (distance1 >= 200)
    {
        digitalWrite(ledRed, HIGH);
        digitalWrite(ledYellow, LOW);
        digitalWrite(ledGreen, LOW);
        servoPakan.write(180);
        delay(1000);
    }
    else if (distance1 > 100 && distance1 < 200)
    {
        digitalWrite(ledRed, LOW);
        digitalWrite(ledYellow, HIGH);
        digitalWrite(ledGreen, LOW);
        delay(1000);
    }
    else if (distance1 <= 100)
    {
        digitalWrite(ledRed, LOW);
        digitalWrite(ledYellow, LOW);
        digitalWrite(ledGreen, HIGH);
        servoPakan.write(90);
        delay(1000);
    }
    else
    {
        digitalWrite(ledRed, LOW);
        digitalWrite(ledYellow, LOW);
        digitalWrite(ledGreen, LOW);
    }

    updateLCDPakan(distance1);
    delay(1000);
}

void loop()
{
    Blynk.run();
    loopPakan();
}