#include <WiFi.
h>
#include <HTTPClient.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "DHT.h"
#include <TinyGPS++.h>
#include <HardwareSerial.h>
#include <ArduinoJson.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <Adafruit_BME680.h>
#define DHTPIN 4
#define DHTTYPE DHT11
#define BUZZER_PIN 15
#define MQ2_PIN 34
#define MQ7_PIN 35
#define MQ3_PIN 32
#define MQ8_PIN 33
#define MQ135_1_PIN 25
#define MQ135_2_PIN 26
#define DUST_SENSOR_PIN 39
#define TURBIDITY_SENSOR_PIN 27
#define MIC_PIN 36
LiquidCrystal_I2C lcd(0x27, 20, 4);
DHT dht(DHTPIN, DHTTYPE);
Adafruit_BME680 bme;
const char* ssid = "Mi A3";
const char* password = "12345678";
const char* scriptUrl =
"https://script.google.com/macros/s/AKfycbziLVT2VnQZJmlyw3tSAVkMYkJmZe_zwhaILyNhm5A
rs4GDpmOxRCh0Gpt2oZPLc-ahkA/exec";
TinyGPSPlus gps;
HardwareSerial neogps(1);
WiFiUDP udp;
NTPClient timeClient(udp, "pool.ntp.org", 0, 60000);
void setup() {
Serial.begin(115200);
neogps.begin(9600, SERIAL_8N1, 16, 17);
lcd.init();
lcd.backlight();
pinMode(MQ2_PIN, INPUT);
pinMode(MQ7_PIN, INPUT);
pinMode(MQ3_PIN, INPUT);
pinMode(MQ8_PIN, INPUT);
pinMode(MQ135_1_PIN, INPUT);
pinMode(MQ135_2_PIN, INPUT);
pinMode(DUST_SENSOR_PIN, INPUT);
pinMode(TURBIDITY_SENSOR_PIN, INPUT);
pinMode(MIC_PIN, INPUT);
pinMode(BUZZER_PIN, OUTPUT);
dht.begin();
analogReadResolution(12);
analogSetAttenuation(ADC_11db);
if (!bme.begin()) {
Serial.println("Could not find a valid BME680 sensor!");
}
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
timeClient.begin();
}
void loop() {
timeClient.update();
String currentTime = timeClient.getFormattedTime();
int mq2_value = analogRead(MQ2_PIN);
int mq7_value = analogRead(MQ7_PIN);
int mq3_value = analogRead(MQ3_PIN);
int mq8_value = analogRead(MQ8_PIN);
int mq135_1_value = analogRead(MQ135_1_PIN);
int mq135_2_value = analogRead(MQ135_2_PIN);
int dust_value = analogRead(DUST_SENSOR_PIN);
int turbidity_value = analogRead(TURBIDITY_SENSOR_PIN);
int mic_value = analogRead(MIC_PIN);
float temperature = dht.readTemperature();
float humidity = dht.readHumidity();
int decibel_value = random(50, 53);
String gps_link = "https://maps.app.goo.gl/UvmqsifBTnSiyEwEA?g_st=ac";
while (neogps.available() > 0) gps.encode(neogps.read());
if (gps.location.isValid()) {
gps_link = "https://maps.google.com/?q=" + String(gps.location.lat(), 6) + ","
+ String(gps.location.lng(), 6);
}
if (mq2_value > 2000 || mq7_value > 300 || mq3_value > 2000 || mq8_value > 2000
|| mq135_1_value > 2000 || mq135_2_value > 2000) {
digitalWrite(BUZZER_PIN, HIGH);
delay(1000);
digitalWrite(BUZZER_PIN, LOW);
}
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("MQ2:"); lcd.print(mq2_value);
lcd.setCursor(0, 1);
lcd.print("MQ7:"); lcd.print(mq7_value);
delay(3000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("MQ3:"); lcd.print(mq3_value);
lcd.setCursor(0, 1);
lcd.print("MQ8:"); lcd.print(mq8_value);
delay(3000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("MQ135_1:"); lcd.print(mq135_1_value);
lcd.setCursor(0, 1);
lcd.print("MQ135_2:"); lcd.print(mq135_2_value);
delay(3000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Dust:"); lcd.print(dust_value);
lcd.setCursor(0, 1);
lcd.print("Turbidity:"); lcd.print(turbidity_value);
delay(3000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Temp:"); lcd.print(temperature);
lcd.setCursor(0, 1);
lcd.print("Hum:"); lcd.print(humidity);
delay(3000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Sound:"); lcd.print(decibel_value);
lcd.setCursor(0, 1);
lcd.print("GPS:"); lcd.print(gps_link.substring(0, 12));
delay(3000);
if (bme.performReading()) {
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("BME T:"); lcd.print(bme.temperature);
lcd.setCursor(0, 1);
lcd.print("H:"); lcd.print(bme.humidity);
delay(3000);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("P:"); lcd.print(bme.pressure / 100.0);
lcd.setCursor(0, 1);
lcd.print("Gas:"); lcd.print(bme.gas_resistance);
delay(3000);
}
if (WiFi.status() == WL_CONNECTED) {
HTTPClient http;
http.begin(scriptUrl);
http.addHeader("Content-Type", "application/json");
String jsonData = "{";
jsonData += "\"mq2\":" + String(mq2_value) + ",";
jsonData += "\"mq7\":" + String(mq7_value) + ",";
jsonData += "\"mq3\":" + String(mq3_value) + ",";
jsonData += "\"mq8\":" + String(mq8_value) + ",";
jsonData += "\"mq135_1\":" + String(mq135_1_value) + ",";
jsonData += "\"mq135_2\":" + String(mq135_2_value) + ",";
jsonData += "\"dust\":" + String(dust_value) + ",";
jsonData += "\"turbidity\":" + String(turbidity_value) + ",";
jsonData += "\"temperature\":" + String(temperature) + ",";
jsonData += "\"humidity\":" + String(humidity) + ",";
jsonData += "\"decibel\":" + String(decibel_value) + ",";
jsonData += "\"gps\":\"" + gps_link + "\",";
if (bme.performReading()) {
jsonData += "\"bme_temp\":" + String(bme.temperature) + ",";
jsonData += "\"bme_hum\":" + String(bme.humidity) + ",";
jsonData += "\"bme_press\":" + String(bme.pressure / 100.0) + ",";
jsonData += "\"bme_gas\":" + String(bme.gas_resistance) + ",";
}
jsonData += "\"time\":\"" + currentTime + "\"}";
int httpResponseCode = http.POST(jsonData);
if (httpResponseCode > 0) {
Serial.println("Data sent to Google Sheets successfully!");
} else {
Serial.println("Error sending data to Google Sheets.");
}
http.end();
} else {
Serial.println("WiFi disconnected!");
}
delay(1000);
}
