Mec25		Steve O'Toole


Aurduino Lab:

Equiptment needed:
Aurduino Mega
USB Cable
Aurduino IDE software
http://arduino.cc/en/main/software#.UxdSYIU2haE


Lab:

(1) establish connection with the aurduino using the IDE software
	down load the example BLINK program compile it and download it to the aurduino.
 	verify that it is running on the Aurduino.
	
(2) Modify the blink program to alternate from a long blink to a short blink consecutivly.

(3) type in the following, compile and load to the Aurduino:

void loop() { 
int i;
for(i = 0; i < 5; i ++){		// run the following 5 times 
digitalWrite(13, HIGH); 		// set the LED on 
delay(250);        			// wait for a second 
digitalWrite(13, LOW); 			// set the LED off 
delay(250);          			// wait for a second 
}
for(;;); 				// Spin your wheels forever
}

(4) Modify the above program to run for 100 times 
	and change the interval to (25)
	What are the results?

(5) type in the following, compile and load to the Aurduino:


/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.
 
  This example code is in the public domain.
 */
 #include <Arduino.h>
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;

// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);     
}

// the loop routine runs over and over again forever:
void loop() {
              // wait for a second
  dash(); dot(); dot(); dot(); dot();     // wait for a second
}
void dash(){
 digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1500);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(500);  
  }
  
  void dot(){
     digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(500);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(500);  
  }

(6) How is the structure in above program different from the one in section 3?
	Modify the program to send 2 CW charicters (_._.   _ _._ ).
Write up lab.