Playing voice when ultrasonic sensor detect any hurdle

Projects General Guidance
1

hey there, I am new at arduino and facing a problem it will be really appreciated if someone can find the error. I am trying this code to play different audio files from SD Card on the different readings of the ultrasonic sensor (HC-04) trying to build a device which can guide blind person of the hurdles ahead of him by telling the distance from hurdle

project.ino (927 Bytes)

2

It would be really appreciated if you would post your code here, in code tags.

3

What are you using to play those files?

4 
#include "SD.h"
#define SD_ChipSelectPin 10
#include "TMRpcm.h"
#include "SPI.h"

TMRpcm tmrpcm;
int trigPin = 4;
int echoPin = 5;

void setup() {
              tmrpcm.speakerPin=9;
              Serial.begin(9600); 
              pinMode(trigPin, OUTPUT);
              pinMode(echoPin, INPUT);
              pinMode(9,OUTPUT);

}
void loop() {
            long duration, distance;
            digitalWrite(trigPin,HIGH);
            delayMicroseconds(1000);
            digitalWrite(trigPin, LOW);
            duration=pulseIn(echoPin, HIGH);
            distance =(duration/2)/29.1;
           
           
           if((distance<=300)) {
                                tmrpcm.setVolume(5);
                                tmrpcm.play("test.wav");
           }

           else if(distance>10){
                                tmrpcm.setVolume(5);
                                tmrpcm.play("test.wav");
            }
}
5

i store audio files in SD card and playing through SD Card Adapter by using wired headphones.