Layout Sound Effects Module

// Sound Effects Module
#include <DFRobotDFPlayerMini.h>
#include <SoftwareSerial.h>

SoftwareSerial mp3Serial(10, 11);
DFRobotDFPlayerMini mp3;

const int TRIGGER = 2;
int lastState = HIGH;

void setup() {
  mp3Serial.begin(9600);
  mp3.begin(mp3Serial);
  mp3.volume(20);
  pinMode(TRIGGER, INPUT);
}

void loop() {
  int state = digitalRead(TRIGGER);
  if (state == LOW && lastState == HIGH) {
    int sound = random(1, 6); // Random sound 1-5
    mp3.play(sound);
  }
  lastState = state;
  delay(100);
}