Audio Relay rev_06

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    - Project: Audio Relay
    - Source Code NOT compiled for: Arduino Nano
    - Source Code created on: 2024-09-22 21:35:38

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* DFRobot DFPlayer Mini via SoftwareSerial on pins */
    /* A0 and A1  change a relay on D2. Play track 1 for */
    /* 14 seconds then play a random track between 2 and */
    /* 7 for 1 minute.  Shut down after 1 minute.  wait 1 */
    /* minute and restart */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <SoftwareSerial.h>
#include <DFRobotDFPlayerMini.h>    // https://github.com/DFRobot/DFRobotDFPlayerMini

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

/***** DEFINITION OF Software Serial *****/
const uint8_t DFP_DFPlayerMini_Serial_PIN_SERIAL_TX_A0      = A0;
const uint8_t DFP_DFPlayerMini_Serial_PIN_SERIAL_RX_A1      = A1;
SoftwareSerial DFP_DFPlayerMini_Serial(DFP_DFPlayerMini_Serial_PIN_SERIAL_RX_A1, DFP_DFPlayerMini_Serial_PIN_SERIAL_TX_A0);

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// Instantiate the DFRobotDFPlayerMini object
DFRobotDFPlayerMini myDFPlayer; // Create an instance of the DFPlayer class

// Define relay pin
const uint8_t RELAY_PIN = 2; // Pin to control the relay

void setup(void)
{
    // Initialize the software serial communication
    DFP_DFPlayerMini_Serial.begin(9600);
    Serial.begin(115200); // Initialize serial for debugging

    // Initialize the relay pin as output
    pinMode(RELAY_PIN, OUTPUT);
    digitalWrite(RELAY_PIN, LOW); // Ensure relay is off initially

    // Initialize the DFPlayer
    if (!myDFPlayer.begin(DFP_DFPlayerMini_Serial, true, true)) { // Use serial to communicate with mp3
        Serial.println(F("Unable to begin:"));
        Serial.println(F("1. Please recheck the connection!"));
        Serial.println(F("2. Please insert the SD card!"));
        while (true); // Stop execution if initialization fails
    }
    Serial.println(F("DFPlayer Mini online."));

    // Set volume and other settings as needed
    myDFPlayer.volume(10); // Set volume value (0~30)
    myDFPlayer.setTimeOut(500); // Set serial communication timeout
}

void loop(void)
{
    // Play track 1 for 14 seconds
    myDFPlayer.play(1);
    digitalWrite(RELAY_PIN, HIGH); // Activate relay
    delay(14000); // Wait for 14 seconds

    // Play a random track between 2 and 7 for 1 minute
    unsigned long startTime = millis();
    while (millis() - startTime < 60000) { // Loop for 1 minute
        int randomTrack = random(2, 8); // Generate a random track number between 2 and 7
        myDFPlayer.play(randomTrack); // Play the random track
        delay(10000); // Wait for 10 seconds before playing the next track
    }

    // Shut down after 1 minute
    digitalWrite(RELAY_PIN, LOW); // Deactivate relay
    delay(60000); // Wait for 1 minute before restarting
}