Hi guys I was building a contraption to scare away birds

Projects Programming
1

I am trying to figure out how to make an owl screeching sound for my project.
here is my current code.

 tone(buzzer,1700);
    delay(100);
     tone(buzzer,1800);
       delay(1000);
     noTone(buzzer);
    delay(100);
2

Does it sound like an owl screeching?

1 Like
3

Can you please post a good description of a possible problem. I don't see one except for the fact that your code will not compile because it's incomplete; e.g. setup() and loop() are missing.

Your problem does not indicate a problem with IDE 1.x and therefore has been moved to a more suitable location on the forum.

4

No, that's why I am asking for your help on how to make it an owl screeching.

5

This is just a part of my code.
this is my full code

#include <Servo.h>
const int buzzer = 4; //buzzer to arduino pin 9


Servo myservo;  

int pos = 0;    

void setup() {
  myservo.attach(3);  
  pinMode(7,OUTPUT);
    pinMode(8,OUTPUT);
   pinMode(buzzer, OUTPUT); 

}

void loop() {
   
 
  {digitalWrite(7,HIGH);
   digitalWrite(8,HIGH);
  delay(1000);
   digitalWrite(7,LOW);
    digitalWrite(8,LOW);
     delay(1000);
    digitalWrite(7,HIGH);
   digitalWrite(8,HIGH);
   delay(1000);
}
  
   for (pos = 0; pos <= 180; pos += 1) {
     myservo.write(pos);              
    delay(55);  }  
   {
    ***tone(buzzer,1700);***
***    delay(100);***
***     tone(buzzer,1800);***
***       delay(1000);***
***     noTone(buzzer);***
***    delay(100);***
     {digitalWrite(7,HIGH);
   digitalWrite(8,HIGH);
  delay(100);
   digitalWrite(7,LOW);
    digitalWrite(8,LOW);
     delay(100);
    digitalWrite(7,HIGH);
   digitalWrite(8,HIGH);
   delay(100);
}
  }
  
  for (pos = 180; pos >= 0; pos -= 1) {
    myservo.write(pos);              
    delay(55); }
  {
    ***tone(buzzer, 1700);***
***    delay(100);***
***    tone(buzzer, 1800); ***
***    delay(1000);***
***     noTone(buzzer);***
***    delay(100);***
  }
 

  
}
6

Consider a mini MP3 player, playing back a recorded owl screech. Hard to beat for $9.

For added effect, add screeches from hawks, eagles, etc.

1 Like
7

Could you guys think of a tone for the peizo.

8

if you listen you'll see there is not only one frequency...

may be you'll be better off with an animated scarecrow :slight_smile:

9
10

Some snippets of code that create chirps:


const int speakerPin=A2;
const int piezopin=A2;

void highChirp(int intensity, int chirpsNumber){
int i;
int x;

for(int veces=0; veces<=chirpsNumber; veces++){

for (i=100; i>0; i--)
  {
   for  (x=0; x<intensity;  x++)
   {
   digitalWrite (piezopin,HIGH);
   delayMicroseconds (i);
   digitalWrite (piezopin,LOW);
   delayMicroseconds (i);
   }
}
}
}

void lowChirp(int intensity, int chirpsNumber){
int i;
int x;

for(int veces=0; veces<=chirpsNumber; veces++){

for (i=300; i<500; i++)
{
   digitalWrite (piezopin,HIGH);
   delayMicroseconds(i);
   digitalWrite(piezopin,LOW);
   delayMicroseconds(i);
  }
   
  for (i=190; i>180; i--)
  {
   for  ( x=0; x<5;  x++)
   {
   digitalWrite (piezopin,HIGH);
   delayMicroseconds (i);
   digitalWrite (piezopin,LOW);
   delayMicroseconds (i);
   }
  }
}
}

//Chirp function
//adapted from Michael Still's 'Cricket Noise Door Bell' arduino project
//http://www.stillhq.com/svn/trunk/arduino/DoorBellWithMatt/DoorBellWithMatt.pde
//We need to pass in a desired chirp length using an integer or our predefined
//constants
void chirp(int length){
  for(int i = 0; i < length; i += 2)
  {
    delay(i);
    digitalWrite(speakerPin, LOW);
    delay(length - i);
    digitalWrite(speakerPin, HIGH);
  }
}

void chirp2(void) {
  	int i,p,n;
	char per;
	DDRC |= (1<<2); 
	for (n=230; n>120; n--) { //bird chirp us(per*4)
//  	for (n=230; n<250; n++) { //cricket chirp
	per=240-n;
	p = n/32;  				//number of pulses
	for (i=0; i<p; i++) {
		PINC |= (1<<2);
                delayMicroseconds(per*4);				//toggle buzzer pin
		}
	}
}
void setup() {
  while(1) {
  chirp2();
  delay(3000);
  }
}
void loop() {}
11

What are all those '***' ? Obviously fails to compile as it stands. Were you trying to format bold?

12

+1 for using DFR Player.

13

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