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arduino cloud/TA_Arduino.ino

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+/*
+  Sketch generated by the Arduino IoT Cloud Thing "Untitled"
+  https://create.arduino.cc/cloud/things/fefef12a-9d1d-4f50-b0a4-8cd6e1d3693f 
+
+  Arduino IoT Cloud Variables description
+
+  The following variables are automatically generated and updated when changes are made to the Thing
+
+  float ph;
+  int ldr;
+  int soil;
+  bool relay;
+  bool relay1;
+
+  Variables which are marked as READ/WRITE in the Cloud Thing will also have functions
+  which are called when their values are changed from the Dashboard.
+  These functions are generated with the Thing and added at the end of this sketch.
+*/
+
+#include "thingProperties.h"
+#include <LiquidCrystal_I2C.h>
+#define SOIL_PIN A0 // Pin untuk sensor SOIL (input)
+#define relayPin 2 // Pin untuk relay (output soil)
+#define wet 210
+#define dry 1023
+#define LDR_PIN A1   // Pin untuk sensor LDR (input)
+#define relay1Pin 4 // Pin untuk relay (output)
+#define dark 1023
+#define bright 0
+#define analogInPin A2  //sambungkan kabel hitam (output) ke pin A2
+
+LiquidCrystal_I2C lcd(0x27, 16, 2);
+
+// Deklarasi fungsi
+
+void onRelayChange();
+void onRelay1Change();
+void onSoilChange();
+void onLdrChange();
+void onPhChange();
+int sensorValue = 0;        //ADC value from sensor
+float outputValue = 0.0;        //pH value after conversion
+
+void setup() {
+  // Initialize serial and wait for port to open:
+  Serial.begin(9600);
+  lcd.init();
+  lcd.backlight();
+  // This delay gives the chance to wait for a Serial Monitor without blocking if none is found
+  delay(1500);
+  
+  pinMode(relayPin,OUTPUT);
+  digitalWrite(relayPin,HIGH);
+  
+  pinMode(relay1Pin, OUTPUT); // Mengatur pin relay sebagai output
+  digitalWrite(relay1Pin, HIGH);
+
+  // Tampilkan pesan selamat datang
+  lcd.setCursor(0, 0);
+  lcd.print("Selamat Datang");
+  lcd.setCursor(0, 1);
+  lcd.print("Project Ikhsan");
+  delay(1000);
+  
+  // Defined in thingProperties.h
+  initProperties();
+
+  // Connect to Arduino IoT Cloud
+  ArduinoCloud.begin(ArduinoIoTPreferredConnection);
+  
+  /*
+     The following function allows you to obtain more information
+     related to the state of network and IoT Cloud connection and errors
+     the higher number the more granular information you’ll get.
+     The default is 0 (only errors).
+     Maximum is 4
+ */
+  setDebugMessageLevel(2);
+  ArduinoCloud.printDebugInfo();
+}
+
+void loop() {
+  ArduinoCloud.update();
+  // Your code here
+  onRelayChange();
+  onRelay1Change();
+  onSoilChange();
+  onLdrChange();
+  onPhChange();
+}
+
+void onSoilChange()  {
+  // Baca nilai mentah dari sensor
+  int rawSoil = analogRead(SOIL_PIN);
+  soil = map(rawSoil, dry, wet, 0, 100);
+
+  // Pastikan nilai soil berada dalam rentang yang benar
+  if (soil > 100) soil = 100;
+  if (soil < 0) soil = 0;
+
+  // Penyiraman otomatis jika kelembaban tanah di bawah 20%
+  if (soil <= 50) {
+    digitalWrite(relayPin, HIGH); // Aktifkan relay untuk menyiram tanaman
+  } else {
+    digitalWrite(relayPin, LOW); // Matikan relay setelah penyiraman selesai
+  }
+
+  // Display on serial monitor
+  Serial.print("Raw Soil Value: ");
+  Serial.print(rawSoil);
+  Serial.print(", Soil Moisture: ");
+  Serial.print(soil);
+  Serial.print("%, Relay (Watering): ");
+  Serial.println(digitalRead(relayPin) == HIGH ? "ON" : "OFF");
+}
+
+void onRelayChange()  {
+  // Add your code here to act upon Relay change
+  if(relay){
+    digitalWrite(relayPin,HIGH); // relayPin ditarik ke HIGH untuk aktif
+  }else{
+    digitalWrite(relayPin,LOW); // relayPin ditarik ke LOW untuk non-aktif
+  }
+}
+
+void onLdrChange()  {
+  // Baca nilai mentah dari sensor
+  int rawLdr = analogRead(LDR_PIN);
+  ldr = map(rawLdr, dark, bright, 0, 100);
+
+  // Hysteresis thresholds
+  const int thresholdOn = 70;
+  const int thresholdOff = 71;
+  
+  if (ldr <= thresholdOn && !relay1) {
+    // Aktifkan relay untuk pencahayaan otomatis
+    relay1 = true;
+    digitalWrite(relay1Pin, HIGH);
+  }
+  else if (ldr >= thresholdOff && relay1) {
+    relay1 = false;
+    digitalWrite(relay1Pin, LOW);
+  }
+
+  // Display on serial monitor
+  Serial.print("Raw LDR Value: ");
+  Serial.print(rawLdr);
+  Serial.print(", LDR: ");
+  Serial.print(ldr);
+  Serial.print("%, Relay (Lighting): ");
+  Serial.println(digitalRead(relay1Pin) == HIGH ? "ON" : "OFF");
+}
+
+void onRelay1Change()  {
+  // Add your code here to act upon Relay1 change
+  if(relay1){
+    digitalWrite(relay1Pin,HIGH); // relay1Pin ditarik ke LOW untuk aktif
+  }else{
+    digitalWrite(relay1Pin,LOW); // relay1Pin ditarik ke HIGH untuk non-aktif
+  }
+}
+
+void onPhChange()  {
+   // Baca nilai analog dari sensor pH
+  int sensorValue = analogRead(analogInPin);
+  delay(500);
+
+  // Rumus didapat berdasarkan datasheet
+  float outputValue = (-0.0139 * sensorValue) + 7.7851;
+
+  // Periksa apakah outputValue adalah NaN
+  if (isnan(outputValue)) {
+    Serial.println(F("Error: outputValue is NaN!"));
+    return;
+  }
+
+  // Pastikan outputValue tidak negatif
+  if (outputValue < 0) outputValue = 0;
+
+  // Tampilkan nilai outputValue
+  Serial.print(F("pH Value: "));
+  Serial.println(outputValue);
+
+  // Tampilkan nilai RAW/ADC soil dan LDR secara bergantian pada LCD
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("Soil RAW: ");
+  lcd.print(analogRead(SOIL_PIN));
+  lcd.setCursor(0, 1);
+  lcd.print("Soil: ");
+  lcd.print(soil);
+  lcd.print("%");
+  delay(2000);
+
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("LDR RAW: ");
+  lcd.print(analogRead(LDR_PIN));
+  lcd.setCursor(0, 1);
+  lcd.print("LDR: ");
+  lcd.print(ldr);
+  lcd.print("%");
+  delay(2000);
+
+  // Tampilkan nilai pH
+  lcd.clear();
+  lcd.setCursor(0, 0);
+  lcd.print("ADC: ");
+  lcd.print(sensorValue);
+  lcd.setCursor(0, 1);
+  lcd.print("pH: ");
+  lcd.print(outputValue);
+  delay(2000);
+}