Updates to a number of Examples

removed pachube examples, added xively examples. changes to the Servo
examples

Author: shfitz

examples/Knob/Knob.ino

@@ -1,5 +1,11 @@
-// Controlling a servo position using a potentiometer (variable resistor) 
-// by Michal Rinott <http://people.interaction-ivrea.it/m.rinott> 
+/* 
+ Controlling a servo position using a potentiometer (variable resistor) 
+ by Michal Rinott <http://people.interaction-ivrea.it/m.rinott> 
+
+ modified on 8 Nov 2013
+ by Scott Fitzgerald
+ http://arduino.cc/en/Tutorial/Knob
+*/
 
 #include <Servo.h> 
 
@@ -16,7 +22,7 @@ void setup()
 void loop() 
 { 
   val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023) 
-  val = map(val, 0, 1023, 0, 179);     // scale it to use it with the servo (value between 0 and 180) 
+  val = map(val, 0, 1023, 0, 180);     // scale it to use it with the servo (value between 0 and 180) 
   myservo.write(val);                  // sets the servo position according to the scaled value 
   delay(15);                           // waits for the servo to get there 
 } 

examples/Sweep/Sweep.ino

@@ -1,12 +1,16 @@
-// Sweep
-// by BARRAGAN <http://barraganstudio.com> 
-// This example code is in the public domain.
+/* Sweep
+ by BARRAGAN <http://barraganstudio.com> 
+ This example code is in the public domain.
 
+ modified 8 Nov 2013
+ by Scott Fitzgerald
+ http://arduino.cc/en/Tutorial/Sweep
+*/ 
 
 #include <Servo.h> 
 
 Servo myservo;  // create servo object to control a servo 
-                // a maximum of eight servo objects can be created 
+                // twelve servo objects can be created on most boards
 
 int pos = 0;    // variable to store the servo position 
 
@@ -15,15 +19,14 @@ void setup()
   myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
 } 
 
- 
 void loop() 
 { 
-  for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees 
+  for(pos = 0; pos <= 180; pos += 1) // goes from 0 degrees to 180 degrees 
   {                                  // in steps of 1 degree 
     myservo.write(pos);              // tell servo to go to position in variable 'pos' 
     delay(15);                       // waits 15ms for the servo to reach the position 
   } 
-  for(pos = 180; pos>=1; pos-=1)     // goes from 180 degrees to 0 degrees 
+  for(pos = 180; pos>=0; pos-=1)     // goes from 180 degrees to 0 degrees 
   {                                
     myservo.write(pos);              // tell servo to go to position in variable 'pos' 
     delay(15);                       // waits 15ms for the servo to reach the position