LED ON program - a practice exercise using WiringPi and GPIO pins

// ELEC 494 Mechx     DK      LED GPIO Intro

//Program: LEDgpio1.c

#include <stdio.h>

#include <wiringPi.h>

// Need wiringPi.h  include file for specific instructions for GPIO

int

main(

){

    int i;

    wiringPiSetup(); // Sets up the I/O pins and instructions for wiringPi

    // Attach my LED and its resistor (diagram is provided

    // in your Fritzing wiring Diagram

     

    //Use GPIO 0 pin 11 to turn on and off LED

    // Set up my GPIO connector pin 11 to be an OUTPUT

    pinMode(0,OUTPUT);

     

    digitalWrite(0,HIGH); //Turn ON GPIO to 3.3V  or HIGH voltage

    for(i=1;i<1000; ++i)

    {

        //waiting or delay function

    }

    digitalWrite(0,LOW); // Turn OFF LED

    delay(2000); // delay 2000 ms

    digitalWrite(0,HIGH);

    delay(5000); // delay by 5000 ms

    digitalWrite(0,LOW);

    printf("\n\n I'm done! All pau! \n\n");

}