diff --git a/Arduino/dinput/dinput.ino b/Arduino/dinput/dinput.ino
index 5df5816..1dbb43a 100644
--- a/Arduino/dinput/dinput.ino
+++ b/Arduino/dinput/dinput.ino
@@ -15,10 +15,14 @@ Joystick_ Joystick(0x03, JOYSTICK_TYPE_GAMEPAD);
 #define LEFT_PIN 11
 #define RIGHT_PIN 10
 
-#define MULTIPLEXER 0x70
-
+// negative offset of the tof sensors measure
+#define OFFSET_TOP 17
+#define OFFSET_MID 15
+#define OFFSET_BOTTOM 0
 #define LASER_FLOOR 5 //increase to increate the minimum distance
 
+#define MULTIPLEXER 0x70
+
 #define ABS(val) (val > 0 ? val : -val)
 
 //on sépare les instances de la librarie car je ne lui fais pas confiance pour opérer plusieurs lasers à la fois
@@ -126,14 +130,14 @@ void loop() {
 
 
   selectI2C(0);
-  bool newState = lasers[0].readRange() < LASER_FLOOR;
+  bool newState = lasers[0].readRange() - OFFSET_BOTTOM < LASER_FLOOR;
   if(newState != laser1State) {
     Joystick.setButton(1, newState);
     laser1State = newState;
   }
 
   selectI2C(1);
-  newState = lasers[1].readRange() - 15 < LASER_FLOOR;
+  newState = lasers[1].readRange() - OFFSET_MID < LASER_FLOOR;
   if(newState != laser2State) {
     //2 & 4 car 2 est censé être le bouton X mais est cable sur 4
     Joystick.setButton(2, newState);
@@ -142,7 +146,7 @@ void loop() {
   }
 
   selectI2C(2);
-  newState = lasers[2].readRange() - 17 < LASER_FLOOR;
+  newState = lasers[2].readRange() - OFFSET_TOP < LASER_FLOOR;
   if(newState != laser3State) {
     Joystick.setButton(3, newState);
     laser3State = newState;
@@ -165,11 +169,11 @@ void loop() {
   selectI2C(1);
   Serial.println("Laser Mid");
   Serial.println(lasers[1].readRange());
-  Serial.println(lasers[1].readRange() - 15 < LASER_FLOOR);
+  Serial.println(lasers[1].readRange() < LASER_FLOOR);
   selectI2C(2);
   Serial.println("Laser Haut");
   Serial.println(lasers[2].readRange());
-  Serial.println(lasers[2].readRange() - 17 < LASER_FLOOR);
+  Serial.println(lasers[2].readRange() < LASER_FLOOR);
   delay(1000);
   #endif
 }
diff --git a/Arduino/xbox/xbox.ino b/Arduino/xbox/xbox.ino
index f8ab9d7..d0ae10c 100644
--- a/Arduino/xbox/xbox.ino
+++ b/Arduino/xbox/xbox.ino
@@ -16,9 +16,14 @@
 #define LEFT_PIN 11
 #define RIGHT_PIN 10
 
+// negative offset of the tof sensors measure
+#define OFFSET_TOP 17
+#define OFFSET_MID 15
+#define OFFSET_BOTTOM 0
+#define LASER_FLOOR 5 //increase to increate the minimum distance
+
 #define MULTIPLEXER 0x70
 
-#define LASER_FLOOR 5 //increase to increate the minimum distance
 
 #define ABS(val) (val > 0 ? val : -val)
 
@@ -128,21 +133,21 @@ void loop() {
 
 
 	selectI2C(0);
-	bool newState = lasers[0].readRange() < LASER_FLOOR;
+	bool newState = lasers[0].readRange() - OFFSET_BOTTOM < LASER_FLOOR;
 	if(newState != laser1State) {
 		XInput.setButton(BUTTON_B, newState);
 		laser1State = newState;
 	}
 
 	selectI2C(1);
-	newState = lasers[1].readRange() - 15 < LASER_FLOOR;
+	newState = lasers[1].readRange() - OFFSET_MID < LASER_FLOOR;
 	if(newState != laser2State) {
 		XInput.setButton(BUTTON_Y, newState);
 		laser2State = newState;
 	}
 
 	selectI2C(2);
-	newState = lasers[2].readRange() - 17 < LASER_FLOOR;
+	newState = lasers[2].readRange() - OFFSET_TOP < LASER_FLOOR;
 	if(newState != laser3State) {
 		XInput.setButton(BUTTON_X, newState);
 		laser3State = newState;
@@ -156,7 +161,7 @@ void loop() {
 	Serial.println(button);
 
 	// o- 13 20 30
-	// c- 0 15 16
+	// c- 0 15 17
 
 	selectI2C(0);
 	Serial.println("Laser Bas");
@@ -165,11 +170,11 @@ void loop() {
 	selectI2C(1);
 	Serial.println("Laser Mid");
 	Serial.println(lasers[1].readRange());
-	Serial.println(lasers[1].readRange() - 15 < LASER_FLOOR);
+	Serial.println(lasers[1].readRange() < LASER_FLOOR);
 	selectI2C(2);
 	Serial.println("Laser Haut");
 	Serial.println(lasers[2].readRange());
-	Serial.println(lasers[2].readRange() - 17 < LASER_FLOOR);
+	Serial.println(lasers[2].readRange() < LASER_FLOOR);
 	delay(1000);
 	#endif
 }