Ultrasonic trigger sd card module

[kotsifos13]

Hello guys! i want to make a project but somethink wrong happend! I have an sd card module with one track on it! I want to start playing music when ultrasonic sencor trigged! To stop when the track finish and star again when something trigg again the ultrasonic sencor! Is this code right?

#include <SD.h>
#include <TMRpcm.h>
#include <SPI.h>

#define SD_ChipSelectPin 4  // SD card select pin
#define trigPin 2
#define echoPin 3
#define speakerPin 9

TMRpcm tmrpcm;
bool isPlaying = false;  // Flag to keep track of the music state

void setup() {
  Serial.begin(9600);

  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);

  if (!SD.begin(SD_ChipSelectPin)) {
    Serial.println("SD initialization failed!");
    return;
  }

  tmrpcm.speakerPin = speakerPin;
  tmrpcm.setVolume(6);  // Adjust volume (0-7)
  
  Serial.println("Setup complete.");
}

void loop() {
  long duration, distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  duration = pulseIn(echoPin, HIGH);
  distance = (duration / 2) / 29.1;

  if (distance < 10) {  // Distance threshold for starting music
    if (!isPlaying) {
      tmrpcm.play("music.wav");  // Ensure the file is named correctly and placed in the root directory of the SD card
      isPlaying = true;
      Serial.println("Music started");
    }
  } else {
    if (isPlaying) {
      tmrpcm.stopPlayback();  // Stop the music
      isPlaying = false;
      Serial.println("Music stopped");
    }
  }

  delay(200);  // Short delay to prevent excessive triggering
}

Thank you very much!

[UKHeliBob]

Welcome to the forum

@kotsifos13

this code

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

Use code tags (the < CODE/ > icon above the compose window) to make it easier to read and copy for examination

https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum

In my experience the easiest way to tidy up the code and add the code tags is as follows
Start by tidying up your code by using Tools/Auto Format in the IDE to make it easier to read. Then use Edit/Copy for Forum and paste what was copied in a new reply. Code tags will have been added to the code to make it easy to read in the forum thus making it easier to provide help.

[Railroader]

It depends on the schematics.

[kotsifos13]

do you know something similar that i can use? thank you!