Education

Robo Explorers 1

Beginners guide to Robotics

Introduction to PCB

Arduino

Yellow LED

Buzzer

Potentiometer

3 LED Math

Motor

Buzzer

Robo Explorers

Let’s proceed with the 3rd task according to the book! Here we need to activate the buzzer and make all the bats and bugs scare away from the team.

Check out this video for a detailed guide to activate the buzzer.

Let’s have a look at how the buzzer is setup in the main code.

#include <avr/io.h>  //gpio setup
#include <avr/interrupt.h> //for interupt service routines
#include <util/delay.h> // here the delay function is found
#include <stdio.h> // for printf and stuff
#include "usart.h" // serial communication

int main(void){
    int state = 0;
    DDRD = 0xFF; // FOR LED
    DDRC = 0xF0; // FOR BUTTON
    DDRB = 0xFF;
    PORTD = 0x00;
    PORTB = 0x00;
    PORTC = 0x3F;
    while (1){
        PORTD = 0b11111000;
        if(PINC==0b00111111){
            PORTB = 0b00000000;
        }
        if(PINC==0b00111101){
            
            PORTB = 0b00000001;
        }
        if (state == 0){
            if(PINC==0b00111110){
                PORTB = 0b00000010;
                _delay_ms(2000);
                state = 1;
            }
        }
        if (state == 1){
            if(PINC==0b00111110){
                PORTB = 0b00000100;
                _delay_ms(2000);
                state = 0;
            }
        }
    }
}