**Temperature Control** rev_01

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    - Project: **Temperature Control**
    - Source Code NOT compiled for: Arduino Uno
    - Source Code created on: 2025-02-07 10:07:05

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* turn on a relay on temperature 20 and turn off */
    /* relay with temperature 60 */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <DHT.h>
#include <Relay.h>

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);

// DHT Sensor setup
#define DHTPIN 2          // Pin where the DHT sensor is connected
#define DHTTYPE DHT11     // DHT 11
DHT dht(DHTPIN, DHTTYPE);  // Create an instance of the DHT class

// Relay setup
#define RELAY_PIN 3       // Pin where the relay is connected
Relay relay(RELAY_PIN, 1); // Create an instance of the Relay class

void setup(void)
{
    // Initialize the DHT sensor
    dht.begin();

    // Initialize the relay
    relay.setRelayMode(relayModeAutomatic);
}

void loop(void)
{
    // Read temperature as Celsius
    float temperature = dht.readTemperature();

    // Check if the reading is valid
    if (isnan(temperature)) {
        Serial.println("Failed to read from DHT sensor!");
        return;
    }

    // Control the relay based on temperature
    if (temperature >= 20 && temperature < 60) {
        relay.setRelayPosition(relayPositionClosed); // Turn on the relay
    } else if (temperature >= 60) {
        relay.setRelayPosition(relayPositionOpen);   // Turn off the relay
    }

    // Add a delay before the next loop iteration
    delay(2000); // Wait for 2 seconds before the next reading
}

/* END CODE */