This commit is contained in:
commit
09ec95bded
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#define BLYNK_PRINT Serial
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#define BLYNK_TEMPLATE_ID "TMPL6pmSmTWSq"
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#define BLYNK_TEMPLATE_NAME "Sensor"
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#include <ESP8266WiFi.h>
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#include <BlynkSimpleEsp8266.h>
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#include <Wire.h>
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#include <LiquidCrystal_I2C.h>
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#include <DHT.h>
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#include <DHT_U.h>
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#include <Servo.h>
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#include <ESP8266HTTPClient.h>
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// Blynk authentication token and WiFi credentials
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char auth[] = "RV_-8PWtIpIC09kAYSfGtZT6r6ezJNCk"; // Blynk auth token
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char ssid[] = "realme 5 Pro"; // Wi-Fi SSID
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char pass[] = "tugasakhir"; // Wi-Fi password
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// Pin Definitions
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const int servoPin = D6; // Pin for the servo
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const int mq135Pin = A0; // Pin for the MQ-135 sensor
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#define DHTPin D3 // Pin for the DHT sensor
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const int relayPin = D4; // Pin for the relay controlling the fan
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#define VPIN_TEMP V0
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#define VPIN_HUM V1
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#define VPIN_UDARA V2 // Blynk virtual pin
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#define VPIN_FAN V3
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#define VPIN_SERVO V4
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const float tempThreshold = 30.0;
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const int thresholdPPM = 65; // New threshold for MQ-135 in PPM
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// Servo Setup
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Servo myServo;
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int closedPosition = 0; // Position when window is closed
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int openPosition = 90; // Position when window is open
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#define DHTTYPE DHT11
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DHT dht(DHTPin, DHTTYPE);
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LiquidCrystal_I2C lcd(0x27, 16, 2); // Address 0x27, 16x2 LCD
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unsigned long previousMillis = 0; // Stores the last time data was sent
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const long interval = 60000; // Interval to send data (1 minute)
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bool tempNotified = false; // Flag to track if temp notification was sent
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bool gasNotified = false; // Flag to track if gas notification was sent
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void setup() {
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Serial.begin(115200);
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Serial.println("Connecting to Wi-Fi...");
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Blynk.begin(auth, ssid, pass);
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pinMode(relayPin, OUTPUT);
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digitalWrite(relayPin, HIGH); // Turn off relay initially
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myServo.attach(servoPin); // Attach servo to the specified pin
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myServo.write(closedPosition); // Initial servo position
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dht.begin(); // Initialize DHT sensor
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lcd.init(); // Initialize LCD
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lcd.backlight(); // Turn on LCD backlight
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Serial.println("Setup completed");
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}
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void loop() {
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Blynk.run();
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sensorReadings();
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unsigned long currentMillis = millis();
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if (currentMillis - previousMillis >= interval) {
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previousMillis = currentMillis;
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sendDataToServer();
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}
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}
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void sensorReadings() {
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int sensorValue = analogRead(mq135Pin);
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delay(200);
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sensorValue = analogRead(mq135Pin);
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int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
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float h = dht.readHumidity();
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float t = dht.readTemperature();
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int fanState = digitalRead(relayPin) == LOW ? 1 : 0;
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int servoState = myServo.read();
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if (isnan(h) || isnan(t)) {
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Serial.println("Failed to read from sensor");
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return;
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}
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Blynk.virtualWrite(VPIN_TEMP, t);
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Blynk.virtualWrite(VPIN_HUM, h);
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Blynk.virtualWrite(VPIN_UDARA, ppm);
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Blynk.virtualWrite(VPIN_FAN, fanState);
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Blynk.virtualWrite(VPIN_SERVO, servoState);
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Serial.print("Humidity: ");
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Serial.print(h);
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Serial.print("%\t");
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Serial.print("Temperature: ");
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Serial.print(t);
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Serial.print("°C\t");
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Serial.print("PPM: ");
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Serial.println(ppm);
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lcd.setCursor(0, 1);
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lcd.print("Temp: ");
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lcd.print(t);
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lcd.print("C");
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lcd.setCursor(2, 0);
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lcd.print("ppm: ");
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lcd.print(ppm);
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// Automatic fan control based on temperature
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if (t > tempThreshold) {
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digitalWrite(relayPin, LOW); // Turn on fan
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fanState = 1;
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Serial.println("Temp > 30°C. Fan ON");
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if (!tempNotified) {
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Blynk.logEvent("high_temp", "Warning: Temperature above safe limit");
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tempNotified = true;
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}
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turnFanOn();
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} else {
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digitalWrite(relayPin, HIGH); // Turn off fan
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fanState = 0;
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Serial.println("Temp <= 30°C. Fan OFF");
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tempNotified = false;
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turnFanOff();
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}
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// Gas detection logic
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if (ppm > thresholdPPM) {
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Serial.println("Gas detected above safe limit");
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if (!gasNotified) {
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Blynk.logEvent("high_gas", "Warning: Gas concentration above safe limit");
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gasNotified = true;
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}
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openWindow(); // Open window
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} else {
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Serial.println("Gas not detected");
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gasNotified = false;
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closeWindow(); // Close window
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}
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}
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void openWindow() {
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myServo.write(openPosition);
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Serial.println("Window opened.");
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sendServoCommand("ON"); // Open window command
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}
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void closeWindow() {
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myServo.write(closedPosition);
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Serial.println("Window closed.");
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sendServoCommand("OFF"); // Close window command
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}
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void turnFanOn() {
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digitalWrite(relayPin, LOW); // Turn on fan
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sendFanCommand("ON"); // Send fan ON status to server
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}
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void turnFanOff() {
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digitalWrite(relayPin, HIGH); // Turn off fan
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sendFanCommand("OFF"); // Send fan OFF status to server
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}
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void sendDataToServer() {
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float h = dht.readHumidity();
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float t = dht.readTemperature();
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int sensorValue = analogRead(mq135Pin);
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int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
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int fanState = digitalRead(relayPin) == LOW ? 1 : 0;
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int servoState = myServo.read();
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if (isnan(h) || isnan(t)) {
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Serial.println("Failed to read from sensor");
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return;
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}
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sendSensorDataToServer(t, h, ppm, fanState, servoState);
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}
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void sendSensorDataToServer(float temp, float hum, int ppm, int fanState, int servoState) {
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if (WiFi.status() == WL_CONNECTED) {
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WiFiClient client;
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HTTPClient http;
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http.begin(client, "http://192.168.85.242/db/dbsensor.php");
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http.addHeader("Content-Type", "application/x-www-form-urlencoded");
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String postData = "suhu=" + String(temp) + "&kelembapan=" + String(hum) + "&udara=" + String(ppm)
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+ "&Fan=" + String(fanState) + "&jendela=" + String(servoState);
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Serial.print("Sending POST data: ");
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Serial.println(postData);
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int httpResponseCode = http.POST(postData);
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if (httpResponseCode > 0) {
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String response = http.getString();
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Serial.println(httpResponseCode);
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Serial.println(response);
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} else {
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Serial.print("Error on sending POST: ");
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Serial.println(httpResponseCode);
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}
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http.end();
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} else {
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Serial.println("WiFi disconnected");
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}
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}
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void sendServoCommand(String command) {
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if (WiFi.status() == WL_CONNECTED) {
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WiFiClient client;
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HTTPClient http;
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http.begin(client, "http://192.168.85.242/db/dbsensor.php");
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http.addHeader("Content-Type", "application/x-www-form-urlencoded");
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String postData = "servoCommand=" + command;
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Serial.print("Sending POST data: ");
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Serial.println(postData);
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int httpResponseCode = http.POST(postData);
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if (httpResponseCode > 0) {
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String response = http.getString();
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Serial.println(httpResponseCode);
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Serial.println(response);
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} else {
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Serial.print("Error on sending POST: ");
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Serial.println(httpResponseCode);
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}
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http.end();
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} else {
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Serial.println("WiFi disconnected");
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}
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}
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void sendFanCommand(String command) {
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if (WiFi.status() == WL_CONNECTED) {
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WiFiClient client;
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HTTPClient http;
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http.begin(client, "http://192.168.85.242/db/dbsensor.php");
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http.addHeader("Content-Type", "application/x-www-form-urlencoded");
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String postData = "fanCommand=" + command;
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Serial.print("Sending POST data: ");
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Serial.println(postData);
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int httpResponseCode = http.POST(postData);
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if (httpResponseCode > 0) {
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String response = http.getString();
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Serial.println(httpResponseCode);
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Serial.println(response);
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} else {
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Serial.print("Error on sending POST: ");
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Serial.println(httpResponseCode);
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}
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http.end();
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} else {
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Serial.println("WiFi disconnected");
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}
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}
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@ -0,0 +1,192 @@
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#define BLYNK_PRINT Serial
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#define BLYNK_TEMPLATE_ID "TMPL6pmSmTWSq"
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#define BLYNK_TEMPLATE_NAME "Sensor"
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#include <ESP8266WiFi.h>
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#include <BlynkSimpleEsp8266.h>
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#include <Wire.h>
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#include <LiquidCrystal_I2C.h>
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#include <DHT.h>
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#include <DHT_U.h>
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#include <Servo.h>
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// Blynk authentication token and WiFi credentials
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char auth[] = "RV_-8PWtIpIC09kAYSfGtZT6r6ezJNCk"; // Blynk auth token
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char ssid[] = "realme 5 Pro"; // Wi-Fi SSID
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char pass[] = "tugasakhir"; // Wi-Fi password
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// Pin Definitions
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const int servoPin = D6; // Pin for the servo
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const int mq135Pin = A0; // Pin for the MQ-135 sensor
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#define DHTPin D3 // Pin for the DHT sensor
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const int relayPin = D4; // Pin for the relay controlling the fan
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#define VPIN_TEMP V0
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#define VPIN_HUM V1
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#define VPIN_UDARA V2 // Blynk virtual pin
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#define VPIN_FAN V3
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#define VPIN_SERVO V4
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const int thresholdPPM = 65; // New threshold for MQ-135 in PPM
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// Servo Setup
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Servo myServo;
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int closedPosition = 0; // Position when window is closed
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int openPosition = 90; // Position when window is open
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#define DHTTYPE DHT11
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DHT dht(DHTPin, DHTTYPE);
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LiquidCrystal_I2C lcd(0x27, 16, 2); // Address 0x27, 16x2 LCD
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unsigned long previousMillis = 0; // Stores the last time data was sent
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const long interval = 60000; // Interval to send data (1 minute)
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bool fanState = false; // State of the fan
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bool windowState = false; // State of the window
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void setup() {
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Serial.begin(115200);
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Serial.println("Connecting to Wi-Fi...");
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Blynk.begin(auth, ssid, pass);
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pinMode(relayPin, OUTPUT);
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digitalWrite(relayPin, HIGH); // Turn off relay initially
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myServo.attach(servoPin); // Attach servo to the specified pin
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myServo.write(closedPosition); // Initial servo position
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dht.begin(); // Initialize DHT sensor
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lcd.init(); // Initialize LCD
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lcd.backlight(); // Turn on LCD backlight
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Serial.println("Setup completed");
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}
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void loop() {
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Blynk.run();
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sensorReadings();
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unsigned long currentMillis = millis();
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if (currentMillis - previousMillis >= interval) {
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previousMillis = currentMillis;
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sendDataToBlynk();
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}
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}
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void sensorReadings() {
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int sensorValue = analogRead(mq135Pin);
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// Adding a delay to stabilize the readings
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delay(200);
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sensorValue = analogRead(mq135Pin);
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int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
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float h = dht.readHumidity();
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float t = dht.readTemperature();
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if (isnan(h) || isnan(t)) {
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Serial.println("Failed to read from sensor");
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return;
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}
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Blynk.virtualWrite(VPIN_TEMP, t);
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Blynk.virtualWrite(VPIN_HUM, h);
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Blynk.virtualWrite(VPIN_UDARA, ppm);
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Serial.print("Humidity: ");
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Serial.print(h);
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Serial.print("%\t");
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Serial.print("Temperature: ");
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Serial.print(t);
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Serial.print("°C\t");
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Serial.print("PPM: ");
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Serial.println(ppm);
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lcd.setCursor(0, 1);
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lcd.print("Temp: ");
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lcd.print(t);
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lcd.print("C");
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lcd.setCursor(2, 0);
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lcd.print("ppm: ");
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lcd.print(String(ppm));
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}
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void openWindow() {
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myServo.write(openPosition);
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windowState = true;
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Serial.println("Window opened.");
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}
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void closeWindow() {
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myServo.write(closedPosition);
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windowState = false;
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Serial.println("Window closed.");
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}
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void turnFanOn() {
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digitalWrite(relayPin, LOW); // Turn on fan
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fanState = true;
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}
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void turnFanOff() {
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digitalWrite(relayPin, HIGH); // Turn off fan
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fanState = false;
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}
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void sendDataToBlynk() {
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float h = dht.readHumidity();
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float t = dht.readTemperature();
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int sensorValue = analogRead(mq135Pin);
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int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
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if (isnan(h) || isnan(t)) {
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Serial.println("Failed to read from sensor");
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return;
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}
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Blynk.virtualWrite(VPIN_TEMP, t);
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Blynk.virtualWrite(VPIN_HUM, h);
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Blynk.virtualWrite(VPIN_UDARA, ppm);
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Blynk.virtualWrite(VPIN_FAN, fanState ? 1 : 0);
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Blynk.virtualWrite(VPIN_SERVO, windowState ? 1 : 0);
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Serial.print("Humidity: ");
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Serial.print(h);
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Serial.print("%\t");
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Serial.print("Temperature: ");
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Serial.print(t);
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Serial.print("°C\t");
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Serial.print("PPM: ");
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Serial.println(ppm);
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lcd.setCursor(0, 1);
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lcd.print("Temp: ");
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lcd.print(t);
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lcd.print("C");
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lcd.setCursor(2, 0);
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lcd.print("ppm: ");
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lcd.print(String(ppm));
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}
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// Blynk function to control the fan via button
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BLYNK_WRITE(VPIN_FAN) {
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int fanControl = param.asInt();
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if (fanControl == 1) {
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turnFanOn();
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} else {
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turnFanOff();
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}
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}
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// Blynk function to control the servo via button
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BLYNK_WRITE(VPIN_SERVO) {
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int servoControl = param.asInt();
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if (servoControl == 1) {
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openWindow();
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} else {
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closeWindow();
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}
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}
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