Buzzer with AVR Revision as of 16:29, 4 February 2016 by Explorer (Talk | contribs) (diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Guru (talk) 20:00, 17 November 2015 (IST)

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Objective

After blinking the leds and Controlling tnem with switches, its time to make some noise using the buzzer. In the first part of the tutorial, we will beep the buzzer every 2secs. At the end we will control the buzzer using a switch.

Register Configuration

Please refer the below tutorial for basics of GPIO register configuration.

AVR I/O Register Configuration

Wiring diagram

Code

 /*-----------------------------------------------------------------------------
                 Program to demonstrate Buzzer
  -----------------------------------------------------------------------------
 
note: Connect Buzzer on PORTB.0
 
------------------------------------------------------------------------------*/
 
 
/* htc.h contains the definition of all ports and SFRs */
#include <avr\io.h>
#include "stdutils.h"
#include "delay.h" //User defined library which contains the delay routine
 
/* start the main program */
void main() 
{
  /*Configure PORTB.0 port as output */
 
   DDRB= 0x01;
 
 
  while(1)
    {
 
	 /* Turn On buzzer and wait for 3 second */ 
 
	   PORTB = 0x01;
 
	   DELAY_sec(3);
 
	  /* Turn Off buzzer and wait for 3 second */ 
 
	   PORTB = 0x00;
 
	   DELAY_sec(3);
 
 
		  }
  }