added updated tinypinchange and associated libraries to support PRO

hardware/digistump/avr/libraries/DigisparkSoftRcPulseOut/examples/Knob/Knob.ino

@@ -0,0 +1,37 @@
+// Controlling a servo position using a potentiometer (variable resistor) 
+// by Michal Rinott <http://people.interaction-ivrea.it/m.rinott> 
+// Adapted to SoftRcPulseOut library by RC Navy  (http://p.loussouarn.free.fr)
+// This sketch can work with ATtiny and Arduino UNO, MEGA, etc...
+
+#include <SoftRcPulseOut.h> 
+ 
+SoftRcPulseOut myservo;  // create servo object to control a servo 
+ 
+#if defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+//Here is the POT_PIN definition for ATtiny, they do NOT need a 'A' prefix for Analogic definition
+#define POT_PIN           2  // --analog pin--  (not digital) used to connect the potentiometer
+#else
+//Here is the POT_PIN definition for Arduino UNO, MEGA, they do need a 'A' prefix for Analogic definition
+#define POT_PIN           A2 // --analog pin--  (not digital) used to connect the potentiometer
+#endif
+
+#define SERVO_PIN         3  // --digital pin-- (not analog)  used to connect the servo
+
+#define REFRESH_PERIOD_MS 20
+
+int val;    // variable to read the value from the analog pin 
+ 
+void setup() 
+{ 
+  myservo.attach(SERVO_PIN);  // attaches the servo on pin defined by SERVO_PIN to the servo object 
+} 
+ 
+void loop() 
+{ 
+  val = analogRead(POT_PIN);           // 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) 
+  myservo.write(val);                  // sets the servo position according to the scaled value 
+  delay(REFRESH_PERIOD_MS);            // waits for the servo to get there 
+  SoftRcPulseOut::refresh();            // generates the servo pulse
+}
+