first commit

ATMEGA_SERVO_SOLAIRE/ATMEGA_SERVO_SOLAIRE.ino

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+Servo myservo; 
+int pos = 90;   // initial position
+int sens1 = A1; // photoresistor 1 pin
+int sens2 = A0; //photoresistor 2 pin
+int tolerance = 2;
+ 
+void setup() 
+{ 
+  myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
+  pinMode(sens1, INPUT);
+  pinMode(sens2, INPUT);
+  myservo.write(pos);
+  delay(2000); // a 2 seconds delay while we position the solar panel
+}  
+ 
+void loop() 
+{ 
+  int val1 = analogRead(sens1); // read the value of sensor 1
+  int val2 = analogRead(sens2); // read the value of sensor 2
+ 
+  if((abs(val1 - val2) <= tolerance) || (abs(val2 - val1) <= tolerance)) {
+    //do nothing if the difference between values is within the tolerance limit
+  } else {    
+    if(val1 > val2)
+    {
+      pos = --pos;
+    }
+    if(val1 < val2) 
+    {
+      pos = ++pos;
+    }
+  }
+ 
+  if(pos > 170) { pos = 170; } // reset to 180 if it goes higher
+  if(pos < 0) { pos = 0; } // reset to 0 if it goes lower
+  
+  myservo.write(pos); // write the position to servo
+  delay(50);
+}