Df player mini, can any one help me

Projects Programming
11

Still too much code.

(Uncompiled, untested)

#include <Arduino.h>
#include <SoftwareSerial.h>
#include <DFRobotDFPlayerMini.h>
SoftwareSerial mySoftwareSerial(10, 11); // RX, TX
DFRobotDFPlayerMini myDFPlayer;

struct Sensor {
  const byte triggerPin;
  const byte echoPin;
  const byte playFile;
  const char* direction;
} sensors [] = { {7, 6, 2, "Left" },
                      {2, 3, 3, "Right"},
                      {4, 5, 1, "Centre"}};

void setup() 
{
  for (auto& sensor : sensors) {
    pinMode(sensor.triggerPin, OUTPUT);
    digitalWrite (sensor.triggerPin, LOW);
    pinMode (sensor.echoPin, INPUT);
  }
  Serial.begin(115200);
  mySoftwareSerial.begin(9600);
  Serial.begin(115200);

  Serial.println();
  Serial.println(F("DFRobot DFPlayer Mini Demo"));
  Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));

  if (!myDFPlayer.begin(mySoftwareSerial)) { //Use softwareSerial 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) {
      delay(0); // Code to compatible with ESP8266 watch dog.
    }
  }
  Serial.println(F("DFPlayer Mini online."));

  myDFPlayer.volume(10);
  //myDFPlayer.setLoopMode(myDFPlayer_LOOP_NONE);
}

void loop() 
{
  for (auto& sensor : sensors) {
    delay(500);
    Serial.println("\n");
    digitalWrite (sensor.triggerPin, HIGH);
    delayMicroseconds (10);
    digitalWrite (sensor.triggerPin, LOW);
    uint32_t duration = pulseIn (sensor.echoPin, HIGH);
    uint32_t distance = (duration / 2) / 29.1;
    if (distance < 30) { 
      Serial.print(sensor.direction);
      Serial.print(F(" Distance "));
      Serial.print(distance);
      myDFPlayer.play(sensor.playFile);
    }  
  }
}