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Cod Ventilator

This document contains an Arduino code for a temperature-controlled fan system using a DHT11 sensor and a potentiometer. It initializes an LCD to display the current temperature and the threshold set by the potentiometer, turning the fan on or off based on the temperature readings. The code continuously updates the display and fan status in a loop.

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Luca Patrascu
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14 views3 pages

Cod Ventilator

This document contains an Arduino code for a temperature-controlled fan system using a DHT11 sensor and a potentiometer. It initializes an LCD to display the current temperature and the threshold set by the potentiometer, turning the fan on or off based on the temperature readings. The code continuously updates the display and fan status in a loop.

Uploaded by

Luca Patrascu
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as RTF, PDF, TXT or read online on Scribd
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#include <DHT.

h>

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

#define DHTPIN 2

#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);

const int potPin = A0;

const int fanPin = 3; // Connect the fan to this pin

LiquidCrystal_I2C lcd(0x27, 16, 2); // Set the LCD address and dimensions

void setup() {

dht.begin();

pinMode(fanPin, OUTPUT);

lcd.init(); // Initialize the LCD

lcd.backlight(); // Turn on the backlight

lcd.setCursor(0, 0);

lcd.print("Temp Fan Control");

lcd.setCursor(0, 1);

lcd.print("by Your Name");

delay(2000);

lcd.clear();
}

void loop() {

int threshold = map(analogRead(potPin), 0, 1023, 20, 40); // Map potentiometer value to temperature
range

float temperature = dht.readTemperature();

if (temperature > threshold) {

digitalWrite(fanPin, HIGH); // Turn on the fan

} else {

digitalWrite(fanPin, LOW); // Turn off the fan

lcd.clear();

lcd.setCursor(0, 0);

lcd.print("Temp: ");

lcd.print(temperature);

lcd.print("C");

lcd.setCursor(0, 1);

lcd.print("Threshold: ");

lcd.print(threshold);

lcd.print("C");

delay(1000);
}

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