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Signed-off-by: habib_andriantito <e41211051@student.polije.ac.id>

Sensor_A01ANYUB_V2_Waterproof_Ultrasonic.ino

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+#include <HardwareSerial.h>
+#include <WiFi.h>
+#include <HTTPClient.h>
+
+// Ganti dengan kredensial WiFi Anda
+const char* ssid = "";
+const char* password = "";
+
+// URL endpoint
+const char* serverName = "http://..............:../...";
+
+// Nama perangkat
+const char* deviceName = "....."; // Nama perangkat yang akan dikirim
+
+HardwareSerial mySerial(1);
+
+// Variabel untuk mengelola waktu pembacaan sensor
+unsigned long previousMillis = 0;
+const long interval = 10000;       // Interval pengukuran dalam milidetik (5 detik)
+const long resetInterval = 20000; // Interval reset dalam milidetik (20 detik)
+const float maxDistance = ...;  
+
+void setup() {
+  Serial.begin(115200);          
+  mySerial.begin(9600, SERIAL_8N1, 16, 17); 
+
+  WiFi.begin(ssid, password);
+  Serial.print("Connecting to WiFi");
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println();
+  Serial.println("Connected to WiFi");
+}
+
+void loop() {
+  unsigned long currentMillis = millis();
+
+  // Mengambil nilai millis saat ini
+  if (currentMillis - previousMillis >= interval) {
+    previousMillis = currentMillis; // Reset waktu sebelumnya
+    
+    // Memastikan data tersedia pada serial sensor
+    if (mySerial.available() >= 4) { // Pastikan 4 byte tersedia sebelum dibaca
+      // Membaca data dari sensor
+      uint8_t data[4];
+      mySerial.readBytes(data, 4);
+      
+      // Debugging: Tampilkan data yang diterima dari sensor
+      Serial.print("Data received: ");
+      for (int i = 0; i < 4; i++) {
+        Serial.print(data[i], HEX);
+        Serial.print(" ");
+      }
+      Serial.println();
+      
+      // Memeriksa apakah byte pertama valid (misalnya, 0xFF sebagai start byte)
+      if (data[0] == 0xFF) {
+        // Menggabungkan byte 1 dan byte 2 untuk mendapatkan jarak dalam milimeter
+        uint16_t distance_mm = (data[1] << 8) | data[2];
+        
+        // Mengonversi jarak dari mm ke cm
+        float distance_cm = distance_mm / 10.0;
+
+        // Batasi jarak maksimal hingga 330 cm
+        if (distance_cm > maxDistance) {
+          distance_cm = maxDistance;
+        }
+
+        // Membalikkan jarak: semakin dekat objek, semakin besar nilainya
+        float invertedDistance = maxDistance - distance_cm;
+        
+        Serial.print("JARAK: ");
+        Serial.println(invertedDistance);
+        Serial.println(" cm");
+
+        // Jika terhubung ke WiFi, kirim data jarak ke server
+        if (WiFi.status() == WL_CONNECTED) {
+          HTTPClient http;
+          
+          // Membuat URL dengan parameter jarak terbalik dan nama perangkat
+          String url = String(serverName) + "?device=" + String(deviceName) + "&distance=" + String(invertedDistance, 3);
+          http.begin(url);
+          
+          // Melakukan HTTP GET request
+          int httpResponseCode = http.GET();
+          
+          // Mengecek apakah request berhasil
+          if (httpResponseCode > 0) {
+            String response = http.getString();
+            Serial.println("Response code: " + String(httpResponseCode));
+            Serial.println("Response: " + response);
+          } else {
+            Serial.println("Error in HTTP request: " + String(httpResponseCode));
+          }
+          
+          http.end(); // Menutup koneksi
+        } else {
+          Serial.println("Error in WiFi connection");
+        }
+      } else {
+        Serial.println("Invalid start byte received.");
+      }
+    } else {
+      Serial.println("Not enough data available to read.");
+    }
+  }
+
+  // Periksa apakah waktu reset telah berlalu
+  if (currentMillis % resetInterval == 0) {
+    Serial.println("Restarting");
+    delay(10000); // Tunggu 10 detik
+    ESP.restart(); // Mereset ESP32
+  }
+}

Sensor_JSN-SR04T.ino

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+#include <WiFi.h>
+#include <HTTPClient.h>
+
+const int trigPin = 5; // Pin Trig
+const int echoPin = 18; // Pin Echo
+
+const char* ssid = "";
+const char* password = "";
+
+const char* serverName = "http://...............:.../...";
+
+const char* deviceName = "....."; // Nama perangkat 
+
+// Waktu untuk restart (1 jam dalam milidetik)
+const unsigned long restartInterval = 3600000; // 1 jam = 3600000 ms
+unsigned long previousMillisRestart = 0; // Waktu sebelumnya untuk restart
+
+const long maxDistance = 125; // Jarak maksimal dalam cm
+
+void setup() {
+  // Inisialisasi Serial Monitor
+  Serial.begin(115200);
+
+  // Mengatur pin Trig sebagai output
+  pinMode(trigPin, OUTPUT);
+  // Mengatur pin Echo sebagai input
+  pinMode(echoPin, INPUT);
+
+  // Menghubungkan ke WiFi
+  WiFi.begin(ssid, password);
+  Serial.print("Connecting to WiFi");
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println();
+  Serial.println("Connected to WiFi");
+}
+
+void loop() {
+  unsigned long currentMillis = millis();
+
+  // Mengirimkan pulse 10us ke pin Trig
+  digitalWrite(trigPin, LOW);
+  delayMicroseconds(2);
+  digitalWrite(trigPin, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(trigPin, LOW);
+
+  // Membaca durasi pulse pada pin Echo
+  long duration = pulseIn(echoPin, HIGH);
+
+  // Menampilkan durasi pulse untuk debugging
+  Serial.print("Duration: ");
+  Serial.print(duration);
+  Serial.println(" microseconds");
+
+  // Menghitung jarak dalam cm
+  if (duration > 0) {
+    long distance = (duration / 2) / 29.1;
+
+    // Batasi jarak maksimal hingga 250 cm
+    if (distance > maxDistance) {
+      distance = maxDistance;
+    }
+
+    // Membalikkan jarak: semakin dekat objek, semakin besar nilainya
+    long mappedDistance = map(distance, 0, maxDistance, maxDistance, 0);
+    
+    Serial.print("Mapped Distance: ");
+    Serial.print(mappedDistance);
+    Serial.println(" cm");
+
+    // Jika terhubung ke WiFi, kirim data jarak ke server
+    if (WiFi.status() == WL_CONNECTED) {
+      HTTPClient http;
+
+      // Membuat URL dengan parameter jarak yang sudah dipetakan dan nama perangkat
+      String url = String(serverName) + "?device=" + String(deviceName) + "&distance=" + String(mappedDistance);
+      http.begin(url);
+
+      // Melakukan HTTP GET request
+      int httpResponseCode = http.GET();
+
+      // Mengecek apakah request berhasil
+      if (httpResponseCode > 0) {
+        String response = http.getString();
+        Serial.println("Response code: " + String(httpResponseCode));
+        Serial.println("Response: " + response);
+      } else {
+        Serial.println("Error in HTTP request: " + String(httpResponseCode));
+      }
+
+      http.end(); // Menutup koneksi
+    } else {
+      Serial.println("Error in WiFi connection");
+    }
+  } else {
+    Serial.println("No pulse detected.");
+  }
+
+  // Cek apakah waktu 1 jam sudah berlalu untuk restart
+  if (currentMillis - previousMillisRestart >= restartInterval) {
+    Serial.println("Restarting system after 1 hour...");
+    delay(1000); // Tunggu 1 detik sebelum restart
+    ESP.restart(); // Restart ESP32
+  }
+  delay(1000);
+}

Sensor_Water_Pressure_SKU_SEN0257.ino

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+#include <WiFi.h>
+#include <HTTPClient.h>
+
+// Ganti dengan kredensial WiFi Anda
+const char* ssid = "...";
+const char* password = ".....";
+
+// URL endpoint
+const char* serverName = "http://...............:.../...";
+const char* deviceName = "";
+
+const float OffSet = 0.50;
+float V, P; // Tegangan dan Tekanan
+
+unsigned long previousMillis = 0; // Variabel untuk melacak waktu
+const long resetInterval = 600000; // 10 menit
+
+// Koefisien untuk filter low-pass
+float alpha = 0.1; // Konstanta filter (0.0 - 1.0), sesuaikan dengan kebutuhan
+float filteredVoltage = 0; // Tegangan yang sudah difilter
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("/** Water Pressure Sensor Data **/");
+
+  // Menghubungkan ke WiFi
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("Connected to WiFi");
+}
+
+void loop() {
+  unsigned long currentMillis = millis();
+  if (currentMillis - previousMillis >= resetInterval) {
+    Serial.println("Resetting device...");
+    ESP.restart(); // Reset ESP32 setelah 10 menit
+  }
+  int sensorValue = analogRead(34);
+  V = sensorValue * 3.3 / 4095; // Mengonversi nilai ADC ke tegangan (3.3V, 12-bit)
+
+  // Filter low-pass untuk menstabilkan pembacaan tegangan
+  filteredVoltage = (alpha * V) + ((1 - alpha) * filteredVoltage);
+
+  // Menghitung tekanan berdasarkan tegangan yang sudah difilter
+  P = (filteredVoltage - OffSet) * 400; // Mengonversi tegangan ke tekanan (KPa)
+  float P_bar = P / 100.0; // Konversi tekanan ke bar
+
+  // Menampilkan hasil di Serial Monitor
+  Serial.print("Filtered Voltage: ");
+  Serial.print(filteredVoltage, 3);
+  Serial.println(" V");
+  Serial.print("Pressure: ");
+  Serial.print(P_bar, 3);
+  Serial.println(" bar");
+  Serial.println();
+
+  // Mengirim data ke server menggunakan GET
+  if (WiFi.status() == WL_CONNECTED) {
+    HTTPClient http;
+    String url = String(serverName) + "?device=" + String(deviceName) + "&voltage=" + String(filteredVoltage, 3) + "&pressure=" + String(P_bar, 3);
+    http.begin(url);
+    int httpResponseCode = http.GET();
+
+    if (httpResponseCode > 0) {
+      String response = http.getString();
+      Serial.println("Response code: " + String(httpResponseCode));
+      Serial.println("Response: " + response);
+    } else {
+      Serial.println("Error in HTTP request: " + String(httpResponseCode));
+    }
+
+    http.end(); // Menutup koneksi
+  } else {
+    Serial.println("Error in WiFi connection");
+  }
+
+  delay(2000); // Tunggu 2 detik sebelum pengiriman berikutnya
+}

database.php

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+<?php
+$Servername = ",,,.,,,.,,,.,,,:,,,,";
+$username = "....";
+$password = ".....";
+$dbname = ".......";
+$conn = new mysqli($Servername, $username, $password,
+$dbname);
+// Check connection
+if ($conn->connect_error) {
+die("Connection failed: " . $conn->connect_error);
+}
+// Retrieve data from GET request and allow null values
+$voltage = isset($_GET['voltage']) ? $_GET['voltage'] :
+null;
+$pressure = isset($_GET['pressure']) ? $_GET['pressure']
+: null;
+$device = isset($_GET['device']) ? $_GET['device']:null;
+$distance = isset($_GET['distance']) ? $_GET['distance']
+: null;
+$now = date('Y-m-d H:i:s'); // Get current timestamp
+// Convert null values to 'NULL' for SQL insertion
+$voltage = $voltage !== null ? "'$voltage'" : "NULL";
+$pressure = $pressure !== null ? "'$pressure'" : "NULL";
+$device = $device !== null ? "'$device'" : "NULL";
+$distance = $distance !== null ? "'$distance'" : "NULL";
+// Insert data into the database, allowing null values
+$sql = "INSERT INTO sensor_data (voltage, pressure,
+device_name, distance, created_at, updated_at)
+VALUES ($voltage, $pressure, $device, $distance, '$now',
+'$now')";
+if ($conn->query($sql) === TRUE) {
+echo "New record created successfully";
+
+} else {
+echo "Error: " . $sql . "<br>" . $conn->error;}
+$conn->close();
+?>