AVR ATmega32 Mini Development Board – Interfacing LED

AVR ATmega32 Mini Development Board has 3 SMD LED s connected to port pins PC0, PC1 & PC2 via jumpers J4, J5 & J6 respectively. If any jumper is left open, then the corresponding port pin can be used independently. The sample code given below toggles the LEDs in fixed intervals.

Note: To use LEDs, don’t forget to short the corresponding jumpers J4, J5 & J6. Leaving them open frees PC0, PC1 & PC2 and can be used for any other desired purpose.

Schematic

Sample Code

/********************************************************************************
                                HEADER FILES
*********************************************************************************/
#include<avr/io.h>           /* Header File Inclusion                           */
#define F_CPU 8000000UL      /* FCPU Definition for util/delay                  */
#include<util/delay.h>       /* Delay File Inclusion                            */

/********************************************************************************
                                MAIN FUNCTION
*********************************************************************************/
int main()                                                               
{
 DDRC = 0X07;                /*  PC0-PC2 pins set as OUTPUT                     */
 while(1)
 {
  PORTC = 0X07;              /*  Make PC0-PC2 logic high                        */
  _delay_ms(500);            /*  Delay Fuction is called for 500ms              */
  PORTC = 0X00;              /*  Make PC0-PC2 logic high                        */
  _delay_ms(500);            /*  Delay Fuction is called for 500ms              */
 }
}	

/****************************  END OF PROGRAM  **********************************/

/********************************************************************************

HEADER FILES

*********************************************************************************/

#include<avr/io.h> /* Header File Inclusion */

#define F_CPU 8000000UL /* FCPU Definition for util/delay */

#include<util/delay.h> /* Delay File Inclusion */

/********************************************************************************

MAIN FUNCTION

*********************************************************************************/

int main()

{

DDRC = 0X07; /* PC0-PC2 pins set as OUTPUT */

while(1)

{

PORTC = 0X07; /* Make PC0-PC2 logic high */

_delay_ms(500); /* Delay Fuction is called for 500ms */

PORTC = 0X00; /* Make PC0-PC2 logic high */

_delay_ms(500); /* Delay Fuction is called for 500ms */

}

/**************************** END OF PROGRAM **********************************/

Topics related to AVR ATmega32 Mini Development Board

Resources

Softwares
- AVR Studio
Datasheets
- ATmega32
- MCP 9700
- LM 7805
- LD 1117
- MAX 232

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