boxalljohn

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

boxalljohn

// example 3.1

void setup()
{ 
  pinMode (2, OUTPUT); // set pin 2 as an output pin
} 

void loop()
{ 
  for (int i = 1; i<=20; i++) // loop 20 times

boxalljohn

void blinkthree()  // the name of my function is "blinkthree"
{
  for (int i = 0; i <3; i++) // loop three times
  {
    digitalWrite(8, HIGH); // turn on LED connected to digital pin 8
    delay (1000);
    digitalWrite(8, LOW); // turn off LED connected to digital pin 8
    delay (1000);
  }
}

boxalljohn

void blinkblink(int blinks)  // the name of my function is "blinkblink", and receives an integer which is stored in the variable blinks
{
  for (int i = 0; i <blinks; i++) // loop "blinks" times
  {
    digitalWrite(8, HIGH); // turn on LED connected to digital pin 8
    delay (1000);
    digitalWrite(8, LOW); // turn off LED connected to digital pin 8
    delay (1000);
  }
}

boxalljohn

void blinkblink(int blinks, int del)  // the name of my function is "blinkblink", and receives an integer which is stored in the variable blinks, and another del ...
{
  for (int i = 0; i<blinks; i++) // loop "blinks" times
  {
    digitalWrite(8, HIGH); // turn on LED connected to digital pin 8
    delay (del);
    digitalWrite(8, LOW); // turn off LED connected to digital pin 8
    delay (del);
  }
}

boxalljohn

float circlearea (float radius)
{
  float result = 0;
  result = 3.141592654 * radius * radius;
  return result;
}

boxalljohn

#include <Servo.h>

boxalljohn

Servo myservo;

boxalljohn

myservo.attach(9);  // attaches the servo on pin 9 to the servo object

boxalljohn

myservo.write(pos);