//Auto Audio Cooler


#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_Sensor.h>
#include <DHT.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);


const int Amp = 16; // Digital pin connected to the DHT sensor
const int AmpRelay = 17;  // Digital pin connected to the relay
const int Cable = 13;  // Digital pin connected to the DHT sensor
const int CableRelay = 12;  // Digital pin connected to the relay

// Define Sensor
#define DHTTYPE  DHT22    

DHT dhtAmp(Amp, DHTTYPE);
DHT dhtCable(Cable, DHTTYPE);

void setup() {
  Serial.begin(115200);

  dhtAmp.begin();
  dhtCable.begin();

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  delay(2000);
  display.clearDisplay();
  display.setTextColor(WHITE);

// Initialize Relays
  pinMode(AmpRelay, OUTPUT);
  pinMode(CableRelay, OUTPUT);
}

void loop() {
  delay(5000);

  //read amp temperature
  float ta = dhtAmp.readTemperature();
  int fa = ta * 1.8 + 32; // Convert Celsius to Fahrenheit
  if (isnan(fa) || isnan(ta)) 
  {
  Serial.println("Failed to read from Amp sensor!");
  }

  //read wire temperature 
  float tw = dhtCable.readTemperature();
  int fw = tw * 1.8 + 32; // Convert Celsius to Fahrenheit
  if (isnan(fw) || isnan(tw)) 
   {
    Serial.println("Failed to read from Wire sensor!");
  }


// Trigger the relay if the wire temperature exceeds 75 degrees Fahrenheit
  if (fa >= 75) {
    Serial.println("Amp Relay activated!"); // Debugging message
    digitalWrite(AmpRelay, HIGH); // Activate the relay
  } else {
    Serial.println("Amp Relay deactivated!"); // Debugging message
    digitalWrite(AmpRelay, LOW); // Deactivate the relay
  }

  // Trigger the relay if the amp temperature exceeds 100 degrees Fahrenheit
  if (fw >= 100) {
    Serial.println("Wire Relay activated!"); // Debugging message
    digitalWrite(CableRelay, HIGH); // Activate the relay
  } else {
    Serial.println("Wire Relay deactivated!"); // Debugging message
    digitalWrite(CableRelay, LOW); // Deactivate the relay
  }
  // clear display
  display.clearDisplay();
  
  // display amp tempreature
  display.setTextSize(2);
  display.setCursor(1,1);
  display.print("Amp: ");
  display.setTextSize(2);
  display.setCursor(60,1);
  display.print(fa);
  display.print(" ");
  display.setTextSize(1);
  display.cp437(true);
  display.write(167);
  display.setTextSize(2);
  display.print("F");
  
  // display wire tempreature
  display.setTextSize(2);
  display.setCursor(1,35);
  display.print("Wire: ");
  display.setTextSize(2);
  display.setCursor(60,35);
  display.print(fw);
  display.print(" ");
  display.setTextSize(1);
  display.cp437(true);
  display.write(167);
  display.setTextSize(2);
  display.print("F");
  
  display.display(); 
}