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Safina345 2024-07-24 11:48:22 +07:00
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#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPL6pmSmTWSq"
#define BLYNK_TEMPLATE_NAME "Sensor"
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <DHT_U.h>
#include <Servo.h>
#include <ESP8266HTTPClient.h>
// Blynk authentication token and WiFi credentials
char auth[] = "RV_-8PWtIpIC09kAYSfGtZT6r6ezJNCk"; // Blynk auth token
char ssid[] = "realme 5 Pro"; // Wi-Fi SSID
char pass[] = "tugasakhir"; // Wi-Fi password
// Pin Definitions
const int servoPin = D6; // Pin for the servo
const int mq135Pin = A0; // Pin for the MQ-135 sensor
#define DHTPin D3 // Pin for the DHT sensor
const int relayPin = D4; // Pin for the relay controlling the fan
#define VPIN_TEMP V0
#define VPIN_HUM V1
#define VPIN_UDARA V2 // Blynk virtual pin
#define VPIN_FAN V3
#define VPIN_SERVO V4
const float tempThreshold = 30.0;
const int thresholdPPM = 65; // New threshold for MQ-135 in PPM
// Servo Setup
Servo myServo;
int closedPosition = 0; // Position when window is closed
int openPosition = 90; // Position when window is open
#define DHTTYPE DHT11
DHT dht(DHTPin, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2); // Address 0x27, 16x2 LCD
unsigned long previousMillis = 0; // Stores the last time data was sent
const long interval = 60000; // Interval to send data (1 minute)
bool tempNotified = false; // Flag to track if temp notification was sent
bool gasNotified = false; // Flag to track if gas notification was sent
void setup() {
Serial.begin(115200);
Serial.println("Connecting to Wi-Fi...");
Blynk.begin(auth, ssid, pass);
pinMode(relayPin, OUTPUT);
digitalWrite(relayPin, HIGH); // Turn off relay initially
myServo.attach(servoPin); // Attach servo to the specified pin
myServo.write(closedPosition); // Initial servo position
dht.begin(); // Initialize DHT sensor
lcd.init(); // Initialize LCD
lcd.backlight(); // Turn on LCD backlight
Serial.println("Setup completed");
}
void loop() {
Blynk.run();
sensorReadings();
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
sendDataToServer();
}
}
void sensorReadings() {
int sensorValue = analogRead(mq135Pin);
delay(200);
sensorValue = analogRead(mq135Pin);
int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
float h = dht.readHumidity();
float t = dht.readTemperature();
int fanState = digitalRead(relayPin) == LOW ? 1 : 0;
int servoState = myServo.read();
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from sensor");
return;
}
Blynk.virtualWrite(VPIN_TEMP, t);
Blynk.virtualWrite(VPIN_HUM, h);
Blynk.virtualWrite(VPIN_UDARA, ppm);
Blynk.virtualWrite(VPIN_FAN, fanState);
Blynk.virtualWrite(VPIN_SERVO, servoState);
Serial.print("Humidity: ");
Serial.print(h);
Serial.print("%\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.print("°C\t");
Serial.print("PPM: ");
Serial.println(ppm);
lcd.setCursor(0, 1);
lcd.print("Temp: ");
lcd.print(t);
lcd.print("C");
lcd.setCursor(2, 0);
lcd.print("ppm: ");
lcd.print(ppm);
// Automatic fan control based on temperature
if (t > tempThreshold) {
digitalWrite(relayPin, LOW); // Turn on fan
fanState = 1;
Serial.println("Temp > 30°C. Fan ON");
if (!tempNotified) {
Blynk.logEvent("high_temp", "Warning: Temperature above safe limit");
tempNotified = true;
}
turnFanOn();
} else {
digitalWrite(relayPin, HIGH); // Turn off fan
fanState = 0;
Serial.println("Temp <= 30°C. Fan OFF");
tempNotified = false;
turnFanOff();
}
// Gas detection logic
if (ppm > thresholdPPM) {
Serial.println("Gas detected above safe limit");
if (!gasNotified) {
Blynk.logEvent("high_gas", "Warning: Gas concentration above safe limit");
gasNotified = true;
}
openWindow(); // Open window
} else {
Serial.println("Gas not detected");
gasNotified = false;
closeWindow(); // Close window
}
}
void openWindow() {
myServo.write(openPosition);
Serial.println("Window opened.");
sendServoCommand("ON"); // Open window command
}
void closeWindow() {
myServo.write(closedPosition);
Serial.println("Window closed.");
sendServoCommand("OFF"); // Close window command
}
void turnFanOn() {
digitalWrite(relayPin, LOW); // Turn on fan
sendFanCommand("ON"); // Send fan ON status to server
}
void turnFanOff() {
digitalWrite(relayPin, HIGH); // Turn off fan
sendFanCommand("OFF"); // Send fan OFF status to server
}
void sendDataToServer() {
float h = dht.readHumidity();
float t = dht.readTemperature();
int sensorValue = analogRead(mq135Pin);
int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
int fanState = digitalRead(relayPin) == LOW ? 1 : 0;
int servoState = myServo.read();
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from sensor");
return;
}
sendSensorDataToServer(t, h, ppm, fanState, servoState);
}
void sendSensorDataToServer(float temp, float hum, int ppm, int fanState, int servoState) {
if (WiFi.status() == WL_CONNECTED) {
WiFiClient client;
HTTPClient http;
http.begin(client, "http://192.168.85.242/db/dbsensor.php");
http.addHeader("Content-Type", "application/x-www-form-urlencoded");
String postData = "suhu=" + String(temp) + "&kelembapan=" + String(hum) + "&udara=" + String(ppm)
+ "&Fan=" + String(fanState) + "&jendela=" + String(servoState);
Serial.print("Sending POST data: ");
Serial.println(postData);
int httpResponseCode = http.POST(postData);
if (httpResponseCode > 0) {
String response = http.getString();
Serial.println(httpResponseCode);
Serial.println(response);
} else {
Serial.print("Error on sending POST: ");
Serial.println(httpResponseCode);
}
http.end();
} else {
Serial.println("WiFi disconnected");
}
}
void sendServoCommand(String command) {
if (WiFi.status() == WL_CONNECTED) {
WiFiClient client;
HTTPClient http;
http.begin(client, "http://192.168.85.242/db/dbsensor.php");
http.addHeader("Content-Type", "application/x-www-form-urlencoded");
String postData = "servoCommand=" + command;
Serial.print("Sending POST data: ");
Serial.println(postData);
int httpResponseCode = http.POST(postData);
if (httpResponseCode > 0) {
String response = http.getString();
Serial.println(httpResponseCode);
Serial.println(response);
} else {
Serial.print("Error on sending POST: ");
Serial.println(httpResponseCode);
}
http.end();
} else {
Serial.println("WiFi disconnected");
}
}
void sendFanCommand(String command) {
if (WiFi.status() == WL_CONNECTED) {
WiFiClient client;
HTTPClient http;
http.begin(client, "http://192.168.85.242/db/dbsensor.php");
http.addHeader("Content-Type", "application/x-www-form-urlencoded");
String postData = "fanCommand=" + command;
Serial.print("Sending POST data: ");
Serial.println(postData);
int httpResponseCode = http.POST(postData);
if (httpResponseCode > 0) {
String response = http.getString();
Serial.println(httpResponseCode);
Serial.println(response);
} else {
Serial.print("Error on sending POST: ");
Serial.println(httpResponseCode);
}
http.end();
} else {
Serial.println("WiFi disconnected");
}
}

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#define BLYNK_PRINT Serial
#define BLYNK_TEMPLATE_ID "TMPL6pmSmTWSq"
#define BLYNK_TEMPLATE_NAME "Sensor"
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include <DHT_U.h>
#include <Servo.h>
// Blynk authentication token and WiFi credentials
char auth[] = "RV_-8PWtIpIC09kAYSfGtZT6r6ezJNCk"; // Blynk auth token
char ssid[] = "realme 5 Pro"; // Wi-Fi SSID
char pass[] = "tugasakhir"; // Wi-Fi password
// Pin Definitions
const int servoPin = D6; // Pin for the servo
const int mq135Pin = A0; // Pin for the MQ-135 sensor
#define DHTPin D3 // Pin for the DHT sensor
const int relayPin = D4; // Pin for the relay controlling the fan
#define VPIN_TEMP V0
#define VPIN_HUM V1
#define VPIN_UDARA V2 // Blynk virtual pin
#define VPIN_FAN V3
#define VPIN_SERVO V4
const int thresholdPPM = 65; // New threshold for MQ-135 in PPM
// Servo Setup
Servo myServo;
int closedPosition = 0; // Position when window is closed
int openPosition = 90; // Position when window is open
#define DHTTYPE DHT11
DHT dht(DHTPin, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2); // Address 0x27, 16x2 LCD
unsigned long previousMillis = 0; // Stores the last time data was sent
const long interval = 60000; // Interval to send data (1 minute)
bool fanState = false; // State of the fan
bool windowState = false; // State of the window
void setup() {
Serial.begin(115200);
Serial.println("Connecting to Wi-Fi...");
Blynk.begin(auth, ssid, pass);
pinMode(relayPin, OUTPUT);
digitalWrite(relayPin, HIGH); // Turn off relay initially
myServo.attach(servoPin); // Attach servo to the specified pin
myServo.write(closedPosition); // Initial servo position
dht.begin(); // Initialize DHT sensor
lcd.init(); // Initialize LCD
lcd.backlight(); // Turn on LCD backlight
Serial.println("Setup completed");
}
void loop() {
Blynk.run();
sensorReadings();
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
previousMillis = currentMillis;
sendDataToBlynk();
}
}
void sensorReadings() {
int sensorValue = analogRead(mq135Pin);
// Adding a delay to stabilize the readings
delay(200);
sensorValue = analogRead(mq135Pin);
int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from sensor");
return;
}
Blynk.virtualWrite(VPIN_TEMP, t);
Blynk.virtualWrite(VPIN_HUM, h);
Blynk.virtualWrite(VPIN_UDARA, ppm);
Serial.print("Humidity: ");
Serial.print(h);
Serial.print("%\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.print("°C\t");
Serial.print("PPM: ");
Serial.println(ppm);
lcd.setCursor(0, 1);
lcd.print("Temp: ");
lcd.print(t);
lcd.print("C");
lcd.setCursor(2, 0);
lcd.print("ppm: ");
lcd.print(String(ppm));
}
void openWindow() {
myServo.write(openPosition);
windowState = true;
Serial.println("Window opened.");
}
void closeWindow() {
myServo.write(closedPosition);
windowState = false;
Serial.println("Window closed.");
}
void turnFanOn() {
digitalWrite(relayPin, LOW); // Turn on fan
fanState = true;
}
void turnFanOff() {
digitalWrite(relayPin, HIGH); // Turn off fan
fanState = false;
}
void sendDataToBlynk() {
float h = dht.readHumidity();
float t = dht.readTemperature();
int sensorValue = analogRead(mq135Pin);
int ppm = map(sensorValue, 0, 1023, 0, 500); // Adjusted range for MQ-135
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from sensor");
return;
}
Blynk.virtualWrite(VPIN_TEMP, t);
Blynk.virtualWrite(VPIN_HUM, h);
Blynk.virtualWrite(VPIN_UDARA, ppm);
Blynk.virtualWrite(VPIN_FAN, fanState ? 1 : 0);
Blynk.virtualWrite(VPIN_SERVO, windowState ? 1 : 0);
Serial.print("Humidity: ");
Serial.print(h);
Serial.print("%\t");
Serial.print("Temperature: ");
Serial.print(t);
Serial.print("°C\t");
Serial.print("PPM: ");
Serial.println(ppm);
lcd.setCursor(0, 1);
lcd.print("Temp: ");
lcd.print(t);
lcd.print("C");
lcd.setCursor(2, 0);
lcd.print("ppm: ");
lcd.print(String(ppm));
}
// Blynk function to control the fan via button
BLYNK_WRITE(VPIN_FAN) {
int fanControl = param.asInt();
if (fanControl == 1) {
turnFanOn();
} else {
turnFanOff();
}
}
// Blynk function to control the servo via button
BLYNK_WRITE(VPIN_SERVO) {
int servoControl = param.asInt();
if (servoControl == 1) {
openWindow();
} else {
closeWindow();
}
}