**Voici l'ébauche du programme du polarimètre:**

#include <Stepper.h>
 
int PhotocellPin = ?;
int PhotocellReading;
Stepper analyzer(# of steps, pin 1-4);
Stepper rotar(# of steps, pins 1-4);
int echantillon = 1;
int AnalyzerSteps = 0;
int RotarSteps;
int alpha;
 
void setup () {
   analyzer.setSpeed(rpm);
   rotar.setSpeed(rpm);
   serial.begin(9600);
}
  void loop () {
    PhotocellReading = analogRead(photocellPin);
    serial.print("value= photocellReading");
 
  if(echantillon < 4) {
   if(PhotocellReading > ?) {
    analyzer.step(1);
    AnalyzerSteps = AnalyzerSteps + 1;
    PhotocellReading = analogRead(PhotocellPin);
    }
   Else {
    serial.print("total steps= AnalyzerSteps");
    alpha= ((AnalyzerSteps/# of steps)*Y)*360;
    serial.print ("Alpha = alpha");
    analyzer.step(- AnalyzerSteps);
    rotar.step(?);
    AnalyzerSteps = 0;
    echantillon = echantillon + 1;
    }
    }
   echantillon = 1;
   delay