Bếp thông minh

Link kiện: Arduino Uno, Dht11, Diode, Lm016L, Logic State, Motor, Mq-2 Gas Sensor, Relay, Res, Tip41 (Transitor).

Mô hình:

Proteus:

Arduino IDE:

#include <DHT.h>

#include <LiquidCrystal.h>

DHT dht(8, DHT11);

LiquidCrystal lcd(7, 6 , 5, 4, 3, 2);

int Quatphong = 9;

int Cuathonggio = 10;

int Quatthonggio = 11;

float gas_sensor = 12;

// float gas_sensor = A5;

float nhietdo;

float doam;

float gas;

void setup() {

// put your setup code here, to run once:

pinMode(Quatphong, OUTPUT);

pinMode(Cuathonggio, OUTPUT);

pinMode(Quatthonggio, OUTPUT);

lcd.begin(16, 2);

lcd.print("Bep thong minh");

lcd.setCursor(0,1);

lcd.print("DHT11 + MQ2");

delay(500);

dht.begin();

}

void dieukhienthietbi(){

if((gas == HIGH) || (doam > 85)){

digitalWrite(Cuathonggio, HIGH);

digitalWrite(Quatthonggio, HIGH);

}else{

digitalWrite(Cuathonggio, LOW);

digitalWrite(Quatthonggio, LOW);

}

if(nhietdo > 32){

digitalWrite(Quatphong, HIGH);

}else{

digitalWrite(Quatphong, LOW);

}

void loop() {

// put your main code here, to run repeatedly:

nhietdo = dht.readTemperature();

doam = dht.readHumidity();

gas = digitalRead(gas_sensor);

// gas = map(analogRead(gas_sensor), 0, 1023, 200, 10000);

lcd.clear();

lcd.print("T: ");

lcd.print(nhietdo);

lcd.print("*C H:");

lcd.print(doam);

lcd.print("%");

lcd.setCursor(0,1);

lcd.print("Nong do gas: ");

lcd.print(gas);

dieukhienthietbi();

delay(1000);

}