Air Quality Measuring System

 

Circuit Diagram :- 

Code :-

//Prateek //wwww.prateeks.in //https://www.youtube.com/c/JustDoElectronics/videos #include <Adafruit_BMP085.h> #include <Wire.h> #include <LiquidCrystal.h> LiquidCrystal lcd(12, 11, 10, 9, 8, 7);//RS,EN,D4,D5,D6,D7 char PRESSURESHOW[4];// initializing a character of size 4 for showing the result char TEMPARATURESHOW[4];// initializing a character of size 4 for showing the temparature result Adafruit_BMP085 bmp; void setup() { lcd.begin(16, 2); // Print a logo message to the LCD. lcd.print(" BMP180 Sensor"); lcd.setCursor(0, 1); lcd.print("Temp. & Pressure"); lcd.setCursor(0, 2); delay (3000); lcd.clear();//clear display Serial.begin(9600); if (!bmp.begin()) { Serial.println("ERROR");///if there is an error in communication while (1) {} } } void loop() { lcd.print("Pressure= "); // print name String PRESSUREVALUE = String(bmp.readPressure()); // convert the reading to a char array PRESSUREVALUE.toCharArray(PRESSURESHOW, 4); lcd.print(PRESSURESHOW); lcd.print("hPa "); lcd.setCursor(0, 1); lcd.print("Temparature=");// print name String TEMPARATUREVALUE = String(bmp.readTemperature()); // convert the reading to a char array TEMPARATUREVALUE.toCharArray(TEMPARATURESHOW, 4); lcd.print(TEMPARATURESHOW); lcd.print("C "); lcd.setCursor(0, 0);//set the cursor to column 0, line1 delay(500); }

Video :-