AIR PURIFIER

An air purifier project build a device that traps dust, allergens, and pollutants using filters and a fan. This can improve your indoor air quality for a breath of fresh air.

CIRCUIT DIAGRAM

This project tackles air quality concerns by building an air purifier system with real-time monitoring capabilities. It utilizes an Arduino Uno for control, an MQ-135 sensor for gas detection, and I2C communication for efficient data transfer.

Components:

1. Arduino Uno: The brain of the system, it collects sensor data, controls the purifier, and potentially displays information.
2. MQ-135 Gas Sensor: Detects a range of gases including volatile organic compounds (VOCs), smoke, and ammonia, indicating potential air quality issues.
3. Fan: Creates airflow to draw polluted air through the filter for purification.
4. I2C Module (Optional): Simplifies communication between the Arduino and other I2C-compatible devices (e.g., LCD for displaying air quality data).
5. Jumper Wires: Connect all the electronic components.
6. readboard (Optional): Useful for prototyping the circuit before final assembly.
7. ower Supply: AC adapter for the Arduino and potentially a separate power source for the fan (depending on its power requirements).

CODE

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display
void setup()
{
 lcd.init();                      // initialize the lcd 
 // Print a message to the LCD.
 lcd.backlight();

 Serial.begin(9600);
 
}
void loop()
{
 
  // Air Quality Measurement
int sv = analogRead(A0);
Serial.print("AQI: ");
Serial.print(sv , DEC);
Serial.println(" PPM");

if ( sv <= 400 ) 
{
  
lcd.setCursor(0,0) ;
lcd.print("Fresh Air");
lcd.setCursor(0,1) ;
lcd.print("AQI : ");
lcd.print(sv , DEC);
lcd.print(" PPM");
delay (1000) ;
}

else if ( sv > 400 && sv < 750 ) 
{
 
lcd.setCursor(0,0) ;
lcd.print("Air Quality:Good");

lcd.setCursor(0,1) ;
lcd.print("AQI : ");
lcd.print(sv , DEC);
lcd.print(" PPM");
delay (1000) ;
  
}
else if ( sv >= 750 && sv < 1200 )
{
lcd.setCursor(0,0) ;
lcd.print("Air Quality:Bad");
lcd.setCursor(0,1) ;
lcd.print("AQI : ");
lcd.print(sv , DEC);
lcd.print(" PPM");
delay (1000) ;
}
else if ( sv > 1200) 
{
lcd.setCursor(0,0) ;
lcd.print("Air Quality:Harm");
lcd.setCursor(0,1) ;
lcd.print("AQI : ");
lcd.print(sv , DEC);
lcd.print(" PPM");
delay (1000) ;
}

}

AIR PURIFIER

An air purifier project build a device that traps dust, allergens, and pollutants using filters and a fan. This can improve your indoor air quality for a breath of fresh air.

CIRCUIT DIAGRAM

This project tackles air quality concerns by building an air purifier system with real-time monitoring capabilities. It utilizes an Arduino Uno for control, an MQ-135 sensor for gas detection, and I2C communication for efficient data transfer.

CODE

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