Sound Monitor rev_02

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    - Project: Sound Monitor
    - Source Code compiled for: Arduino Uno
    - Source Code created on: 2024-10-23 11:43:28

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* I want the lcd to display the sound level when the */
    /* sound sensor detects a sound and the led should */
    /* glow if it crosses a certain limit and the buzzer */
    /* should beep */
/****** END SYSTEM REQUIREMENTS *****/


/****** DEFINITION OF LIBRARIES *****/
#include <Wire.h>
#include <LiquidCrystal_I2C.h>  //https://github.com/marcoschwartz/LiquidCrystal_I2C

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

/***** DEFINITION OF I2C PINS *****/
const uint8_t display_LCD1602I2C_I2C_PIN_SDA_A4     = A4;
const uint8_t display_LCD1602I2C_I2C_PIN_SCL_A5     = A5;
const uint8_t display_LCD1602I2C_I2C_SLAVE_ADDRESS      = 39;

/****** DEFINITION OF PIN NUMBERS *****/
// Define the pin numbers for the sound sensor, LED, and buzzer
const uint8_t SOUND_SENSOR_PIN = A0; // Analog pin for sound sensor
const uint8_t LED_PIN = 9;            // Digital pin for LED
const uint8_t BUZZER_PIN = 10;        // Digital pin for Buzzer

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// Initialize the LiquidCrystal_I2C object with the I2C address and dimensions of the LCD
LiquidCrystal_I2C lcd(display_LCD1602I2C_I2C_SLAVE_ADDRESS, 16, 2); // 16 columns and 2 rows

void setup(void)
{
    // Initialize the LCD
    lcd.init(); // Initialize the LCD
    lcd.backlight(); // Turn on the backlight

    // Initialize the LED and Buzzer pins
    pinMode(LED_PIN, OUTPUT); // Set LED pin as output
    pinMode(BUZZER_PIN, OUTPUT); // Set Buzzer pin as output

    // Display initial message on the LCD
    lcd.setCursor(0, 0); // Set cursor to first row, first column
    lcd.print("Sound Level:"); // Print message on the first row
}

void loop(void)
{
    // Read the sound level from the sound sensor
    int soundLevel = analogRead(SOUND_SENSOR_PIN); // Read the sound level

    // Display the sound level on the LCD
    lcd.setCursor(0, 1); // Set cursor to second row, first column
    lcd.print("        "); // Clear previous sound level
    lcd.setCursor(0, 1); // Reset cursor to the beginning of the second row
    lcd.print(soundLevel); // Print the sound level

    // Check if the sound level exceeds a certain limit (e.g., 300)
    if (soundLevel > 300) {
        digitalWrite(LED_PIN, HIGH); // Turn on the LED
        digitalWrite(BUZZER_PIN, HIGH); // Turn on the Buzzer
        delay(100); // Buzzer on for 100 milliseconds
        digitalWrite(BUZZER_PIN, LOW); // Turn off the Buzzer
    } else {
        digitalWrite(LED_PIN, LOW); // Turn off the LED
    }

    delay(500); // Delay for half a second before the next reading
}

/* END CODE */