First commit

hamster1.ino

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+#define BLYNK_TEMPLATE_ID "TMPL6oANP5se5"
+#define BLYNK_TEMPLATE_NAME "Hamster"
+#define BLYNK_AUTH_TOKEN "Os8S_bWQluJnzva0eW_Rmtvv2KDJbvGA"
+
+#include <WiFi.h>
+#include <BlynkSimpleEsp32.h>
+#include <ESP32Servo.h>
+#include <Wire.h>
+#include <LiquidCrystal_I2C.h>
+#include "RTClib.h"
+
+Servo servo;
+RTC_DS3231 rtc;
+LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address, columns, rows
+
+const int servoPin = 25;
+const int trigPin = 5;
+const int echoPin = 34;
+const int ledPin = 2;
+const int buttonPin = 23;
+
+char ssid[] = "Barudak RIAU";
+char pass[] = "tanyadulu";
+
+int jamInput = -1;
+int menitInput = -1;
+
+BlynkTimer timer;
+
+// Fungsi pemberian pakan
+void aktifkanServo() {
+  Serial.println("🔧 Servo aktif: Memberi pakan");
+  servo.write(90);
+  delay(500);
+  servo.write(0);
+  delay(500);
+}
+
+// Blynk: Tombol V0 untuk aktifkan servo
+BLYNK_WRITE(V0) {
+  int value = param.asInt();
+  if (value == 1) {
+    aktifkanServo();
+  }
+}
+
+// Blynk: Input waktu dari V1
+BLYNK_WRITE(V1) {
+  String waktu = param.asStr();
+  int delimiter = waktu.indexOf(':');
+  if (delimiter != -1) {
+    jamInput = waktu.substring(0, delimiter).toInt();
+    menitInput = waktu.substring(delimiter + 1).toInt();
+    Serial.print("🕒 Input manual dari Blynk: ");
+    Serial.print(jamInput); Serial.print(":"); Serial.println(menitInput);
+  }
+}
+
+// Fungsi utama pengecekan
+void cekPakanDanWaktu() {
+  DateTime now = rtc.now();
+  int hour = now.hour();
+  int minute = now.minute();
+  int second = now.second();
+
+  // LCD: Tampilkan jam
+  lcd.setCursor(0, 0);
+  lcd.print("Jam: ");
+  if (hour < 10) lcd.print("0");
+  lcd.print(hour); lcd.print(":");
+  if (minute < 10) lcd.print("0");
+  lcd.print(minute); lcd.print(":");
+  if (second < 10) lcd.print("0");
+  lcd.print(second);
+
+  // Serial: Tampilkan jam
+  Serial.print("🕒 Waktu: ");
+  Serial.print(hour); Serial.print(":");
+  Serial.print(minute); Serial.print(":");
+  Serial.println(second);
+
+  // Kirim waktu ke Blynk (opsional)
+  Blynk.virtualWrite(V1, String(hour) + ":" + String(minute));
+
+  // Cek waktu pemberian pakan otomatis
+  if (((hour == 8 || hour == 12 || hour == 18) && minute == 0 && second == 0) ||
+      (hour == jamInput && minute == menitInput && second == 0)) {
+    aktifkanServo();
+    delay(1000);
+  }
+
+  // Sensor ultrasonik: baca jarak
+  digitalWrite(trigPin, LOW);
+  delayMicroseconds(2);
+  digitalWrite(trigPin, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(trigPin, LOW);
+  long duration = pulseIn(echoPin, HIGH);
+  float jarak = duration * 0.034 / 2;
+
+  lcd.setCursor(0, 1);
+  if (jarak <= 9.0) {
+    digitalWrite(ledPin, LOW);
+    lcd.print("Pakan Ada       ");
+    Blynk.virtualWrite(V3, "Pakan Ada");
+    Blynk.virtualWrite(V2, 255); // LED ON di app
+    Serial.println("✅ Status: Pakan ADA");
+  } else {
+    digitalWrite(ledPin, HIGH);
+    lcd.print("Pakan Habis     ");
+    Blynk.virtualWrite(V3, "Pakan Habis");
+    Blynk.virtualWrite(V2, 0);   // LED OFF di app
+    Serial.println("⚠️  Status: Pakan HABIS");
+  }
+
+  // Cek tombol fisik
+  if (digitalRead(buttonPin) == LOW) {
+    Serial.println("🔘 Tombol ditekan: Servo aktif");
+    aktifkanServo();
+    delay(500);
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+
+  pinMode(trigPin, OUTPUT);
+  pinMode(echoPin, INPUT);
+  pinMode(ledPin, OUTPUT);
+  pinMode(buttonPin, INPUT_PULLUP);
+  servo.attach(servoPin);
+
+  lcd.init();      // untuk inisialisasi
+  lcd.backlight();
+
+  // RTC
+  if (!rtc.begin()) {
+    Serial.println("⛔ RTC tidak ditemukan!");
+    while (1);
+  }
+
+  // WiFi manual untuk kontrol error
+  Serial.print("📶 Menghubungkan ke WiFi: ");
+  Serial.println(ssid);
+  WiFi.begin(ssid, pass);
+
+  int retries = 0;
+  while (WiFi.status() != WL_CONNECTED && retries < 20) {
+    delay(500);
+    Serial.print(".");
+    retries++;
+  }
+
+  if (WiFi.status() == WL_CONNECTED) {
+    Serial.println("\n✅ WiFi Terhubung");
+    Serial.print("📡 IP ESP32: ");
+    Serial.println(WiFi.localIP());
+    Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
+  } else {
+    Serial.println("\n⛔ Gagal tersambung ke WiFi. Blynk tidak dijalankan.");
+  }
+
+  timer.setInterval(1000L, cekPakanDanWaktu);
+}
+
+void loop() {
+  if (WiFi.status() == WL_CONNECTED) {
+    Blynk.run();
+  }
+  timer.run();
+}