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code.ino
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code.ino
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#include <SD.h> // need to include the SD library
#define SD_ChipSelectPin 53 //using digital pin 4 on arduino nano 328
#include <TMRpcm.h> // also need to include this library...
#include <SPI.h>
TMRpcm tmrpcm; // create an object for use in this sketch
int echoPin1=14;
int trigPin1=15;
int echoPin2=26;
int trigPin2=27;
int echoPin3=16;
int trigPin3=17;
int echoPin4=18;
int trigPin4=19;
int echoPin5=20;
int trigPin5=21;
int echoPin6=22;
int trigPin6=23;
int echoPin7=30;
int trigPin7=31;
void setup(){
pinMode(trigPin1,OUTPUT);
pinMode(echoPin1,INPUT);
Serial.begin(9600);
pinMode(trigPin2,OUTPUT);
pinMode(echoPin2,INPUT);
pinMode(trigPin3,OUTPUT);
pinMode(echoPin3,INPUT);
pinMode(trigPin4,OUTPUT);
pinMode(echoPin4,INPUT);
pinMode(trigPin5,OUTPUT);
pinMode(echoPin5,INPUT);
pinMode(trigPin6,OUTPUT);
pinMode(echoPin6,INPUT);
pinMode(trigPin7,OUTPUT);
pinMode(echoPin7,INPUT);
tmrpcm.speakerPin = 11; //11 on Mega, 9 on Uno, Nano, etc
if (!SD.begin(SD_ChipSelectPin)) { // see if the card is present and can be initialized:
return; // don't do anything more if not
}
tmrpcm.volume(1);
}
void loop(){
long t1,t2,t3,t4,t5,t6,t7;
digitalWrite(trigPin1,LOW);
delay(2);
digitalWrite(trigPin1,HIGH);
delay(2);
digitalWrite(trigPin1,LOW);
t1=micro_to_cm(pulseIn(echoPin1,HIGH));
//delay(500);
Serial.print("t1=");
Serial.println(t1);
if (t1<=20 && t1>0)
{
tmrpcm.play("1.wav");
Serial.println("1 baj rha hai");
delay(1200);
}
digitalWrite(trigPin2,LOW);
delay(2);
digitalWrite(trigPin2,HIGH);
delay(2);
digitalWrite(trigPin2,LOW);
t2=micro_to_cm(pulseIn(echoPin2,HIGH));
Serial.print("t2=");
Serial.println(t2);
if (t2<=20 && t2>0)
{
tmrpcm.play("2.wav");
Serial.println("2 baj rha hai");
delay(1200);
}
digitalWrite(trigPin3,LOW);
delay(2);
digitalWrite(trigPin3,HIGH);
delay(2);
digitalWrite(trigPin3,LOW);
t3=micro_to_cm(pulseIn(echoPin3,HIGH));
//delay(500);
Serial.print("t3=");
Serial.println(t3);
if (t3<=20 && t3>0)
{
tmrpcm.play("3.wav");
Serial.println("3 baj rha hai");
delay(1200);
}
digitalWrite(trigPin4,LOW);
delay(2);
digitalWrite(trigPin4,HIGH);
delay(2);
digitalWrite(trigPin4,LOW);
t4=micro_to_cm(pulseIn(echoPin4,HIGH));
Serial.print("t4=");
Serial.println(t4);
if (t4<=20 && t4>0)
{
tmrpcm.play("4.wav");
Serial.println("4 baj rha hai");
delay(1200);
}
digitalWrite(trigPin5,LOW);
delay(2);
digitalWrite(trigPin5,HIGH);
delay(2);
digitalWrite(trigPin5,LOW);
t5=micro_to_cm(pulseIn(echoPin5,HIGH));
//delay(500);
Serial.print("t5=");
Serial.println(t5);
if (t5<=20 && t5>0)
{
tmrpcm.play("5.wav");
Serial.println("5 baj rha hai");
delay(1200);
}
digitalWrite(trigPin6,LOW);
delay(2);
digitalWrite(trigPin6,HIGH);
delay(2);
digitalWrite(trigPin6,LOW);
t6=micro_to_cm(pulseIn(echoPin6,HIGH));
Serial.print("t6=");
Serial.println(t6);
if (t6<37 && t6>0)
{
tmrpcm.play("6.wav");
Serial.println("6 baj rha hai");
delay(1200);
}
digitalWrite(trigPin7,LOW);
delay(2);
digitalWrite(trigPin7,HIGH);
delay(2);
digitalWrite(trigPin7,LOW);
t7=micro_to_cm(pulseIn(echoPin7,HIGH));
//delay(500);
Serial.print("t7=");
Serial.println(t7);
if (t7<=20 && t7>0)
{
tmrpcm.play("7.wav");
Serial.println("7 baj rha hai");
delay(12+00);
}
}
long micro_to_cm(long m){
return m/29/2;}