AntiGuide: PoTrollHorlogeABalancier

// GAFFE: rollover à 60 ans!
// po 20160305 essai sur mega, OK
// de g a d :bleu marron gris (ne correspond pas a exemplaire au lac)
// Sweep
// by BARRAGAN <http://barraganstudio.com> 
// This example code is in the public domain.


#include <Servo.h> 
 
Servo myservo;  // create servo object to control a servo 
                // a maximum of eight servo objects can be created 
 
int count = -1;    // compte les secondes (pour affichage de test)
int angle=20;     // angle total du mouvement
int periodems=1000;  // période en milli secondes
int del;
long top;  
long next;
long retard; // avance/retard du coup précedent
void setup() 
{ 
  del=periodems/4;
  myservo.attach(A0);  // attaches the servo on pin 9 to the servo object 
  Serial.begin(115200);
 Serial.print("andiamo periode: ");
 Serial.println(periodems); 
 top==millis()-4*del; // pour partir sans retard
 retard=0;
  myservo.write(90);  // tell servo to go to position in variable 'pos' 
} 
 
 
void loop() 
{ 
   count=count+1;
   next=millis();  // noter heure actuelle
   if (count>1) retard=next-top-4*del+retard;
   top=next;
   Serial.print(" tour: ");
   Serial.print(count);
   Serial.print(" now ms: ");
   Serial.print( next);
      Serial.print(" retard: ");Serial.println(retard);
 if (next<0) return;  // bouclege 32 bits
      myservo.write(90-angle/2);      
  delay(del-retard);
 myservo.write(90);              
 delay(del);
 myservo.write(90+angle/2);      
 delay(del);
 myservo.write(90);              
 delay(del);
}