diff --git a/include/main.h b/include/main.h
index 389155c..e2622b4 100644
--- a/include/main.h
+++ b/include/main.h
@@ -23,7 +23,7 @@
 #define SENSORS_NUMBER 5
 #define DHT22 22
 #define TIME_TO_SLEEP 598
-#define US_TO_S_FACTOR 1000000
+#define US_TO_S_FACTOR 1000000 //1000000 => 1 mesure par 10 min
 #define R2 100
 #define R3 10
 #define VOLTAGE_OUT(Vin) (((Vin)*R3) / (R2 + R3))
diff --git a/src/main.cpp b/src/main.cpp
index f61bafc..c6527dd 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,4 +1,6 @@
-// mdps dans include/secret.h
+// psswd's into include/secret.h
+// others settings in main.h
+
 #include "main.h"
 
 using namespace std;