O schemă bloc cu toate modulele proiectului vostru, atât software cât şi hardware însoţită de o descriere a acestora precum şi a modului în care interacţionează.

Exemplu de schemă bloc: http://www.robs-projects.com/mp3proj/newplayer.html

Aici puneţi tot ce ţine de hardware design:

• listă de piese
• scheme electrice (se pot lua şi de pe Internet şi din datasheet-uri, e.g. http://www.captain.at/electronic-atmega16-mmc-schematic.png)
• diagrame de semnal
• rezultatele simulării

Pentru partea software initial am facut proiectul in 2 parti, prima data am facut partea am facut codul pentru a canta o melodie, componentele utilizate au fost boxa, sd card-ul si modulul pentru micro sd, butoane si placuta de arduino uno. Dupa ce am reusit sa fac aceasta parte a codului sa mearga am salvat-o si int-un alt fisier am realizat codul pentru ecranul lcd si senzorul dht11. Dupa ce am reusit sa afisez ceva pe ecran, am afisat si datele obtinute de la senzor. La final am facut un singur fisier in care am imbinat ambele coduri.

Bibliotecile utilizate sunt: #include <SD.h> include SD module library #include <TMRpcm.h> include speaker control library https://github.com/TMRh20/TMRpcm/archive/master.zip #include <LiquidCrystal_I2C.h> include I2C LCD library #include <DHT.h> include DHT sensor library

Pnetru butoane am folosit intreruperi: void button_humi(){

curr_time = millis();
if ((curr_time - last_updated) > debounce) {
  last_updated = curr_time;
  noInterrupts(); // disable interrupts temporarily
  if (humidity > humidity_treashold) {
    sound.stopPlayback();
    sound.play("third.wav");     // 8-bit, mono, 16-24khz at best
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Playing sound..3");
  } else {
    sound.stopPlayback();
    sound.play("fourth.wav");     // 8-bit, mono, 16-24khz at best
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Playing sound..4");
  }
  interrupts(); // re-enable interrupts
}

}

in setup() fac setez pinii si volumul boxei si sd card-ul.

void setup(){

//interrupt setup
pinMode(led_on_high_temp, OUTPUT);
pinMode(led_on_low_temp, OUTPUT);
pinMode(led_on_high_humi, OUTPUT);
pinMode(led_on_low_humi, OUTPUT);
pinMode(button_tem, INPUT_PULLUP);
pinMode(button_hum, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(button_tem), button_temp, FALLING);
attachInterrupt(digitalPinToInterrupt(button_hum), button_humi, FALLING);

// LCD setup
lcd.init();
lcd.backlight();
lcd.print("Initializing SD");

// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
  ; // wait for serial port to connect. Needed for native USB port only
}                                       
Serial.println("Initializing SD card...");
if (!SD.begin(SD_ChipSelectPin)) {      //see if the card is present and can be initialized
  Serial.println("Initialization failed...");
  lcd.clear();
  lcd.print("SD init failed");
  return;                               //don't do anything more if not
}
else {
    Serial.println("Initialization done...");
    lcd.clear();
    lcd.print("SD init done");
}

dht.begin();
sound.speakerPin = 9;                  
sound.quality(1);                      
sound.setVolume(5);                    

}

Functia de loop():

void loop(){

if (!SD.begin(SD_ChipSelectPin)) {      //see if the card is present and can be initialized
  lcd.clear();
  lcd.print("SD init failed");
  return;                               //don't do anything more if not
}
else {
    lcd.clear();
    lcd.print("SD init done");
}

if(!sound.isPlaying()) {
  // Read temperature and humidity from DHT sensor
  humidity = dht.readHumidity();
  temperature = dht.readTemperature();

  // Check if any reads failed and exit early (to try again).
  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  lcd.setCursor(0,0);
  lcd.print("Temp: ");
  lcd.print(temperature);
  lcd.print(" C");
  lcd.setCursor(0,1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print(" %");

  if (temperature > temperature_threshold) {
    digitalWrite(led_on_high_temp, HIGH); // Turn on the LED on pin 5
    digitalWrite(led_on_low_temp, LOW);
  } else {
    digitalWrite(led_on_high_temp, LOW); 
    digitalWrite(led_on_low_temp, HIGH); //Turn on the LED on pin 4
  }

  if (humidity > humidity_treashold) {
    digitalWrite(led_on_high_humi, HIGH); // Turn on the LED on pin 8
    digitalWrite(led_on_low_humi, LOW);
  } else {
    digitalWrite(led_on_high_humi, LOW); 
    digitalWrite(led_on_low_humi, HIGH); //Turn on the LED on pin 6
  }

  delay(5000);

  // Display temperature and humidity in the Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" C");
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");
}
else {
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Playing sound...");
}

}