arduino dfplayer soll zufälliges lied spielen

#include "SoftwareSerial.h"

#include "DFRobotDFPlayerMini.h"

// Use pins 2 and 3 to communicate with DFPlayer Mini

static const uint8_t PIN_MP3_TX = 10; // Connects to module's RX

static const uint8_t PIN_MP3_RX = 11; // Connects to module's TX

SoftwareSerial softwareSerial(PIN_MP3_RX, PIN_MP3_TX);

const int PIR = 8;

int input_val = 0;

long randNumber;

// Create the Player object

DFRobotDFPlayerMini player;

void setup() {

  randomSeed(analogRead(0));

  // Init USB serial port for debugging

  Serial.begin(9600);

  // Init serial port for DFPlayer Mini

  softwareSerial.begin(9600);

  // Start communication with DFPlayer Mini

  if (player.begin(softwareSerial)) {

    Serial.println("OK");

    // Set volume to maximum (0 to 30).

    player.volume(30);

  } else {

    Serial.println("Connecting to DFPlayer Mini failed!");

  }

    delay(50000);

}

void loop() {

  input_val = digitalRead(PIR);

  randNumber = random(19);

  Serial.println(randNumber);

  delay(1000);

  Serial.println(input_val);

  if (input_val > 0)

  {

    player.play(randNumber);

    Serial.println("motion detected ");

     delay(600000);

  }

}