firmware wip - add some notes for watering logic, adjust soilmoisture low value

Arduino/CanGrow/CanGrow.ino

@@ -270,7 +270,17 @@ void loop() {
   
   
   
-  
+/*
+ * Pump control
+ * 
+ * Vars:
+ *   - UsePump (bool)
+ *   - PumpOnTime (int) in sec
+ *   - PumpInterval (int) in days
+ *   - SoilmoistureLow (int) in %
+ *   
+ * 
+ */  
   
   
   

Arduino/CanGrow/CanGrow_Init.h

@@ -79,10 +79,11 @@ short NtpOffset;
 // 2: I2C chirp sensor from catnip electronics
 byte MoistureSensor_Type;
 // SoilmoistureLow - contains the value , when soil moisture is assumed to be low, 
-byte SoilmoistureLow = 20;
+byte SoilmoistureLow = 75;
 // UsePump - is the pump used? bool
 bool UsePump;
 // UseFan - is the fan used? bool
+// PumpOnTime in seconds
 byte PumpOnTime = 3;
 bool UseFan;
 // In case the user uses no 12V LED on the LED output and an relais instead

Arduino/CanGrow/CanGrow_Version.h

@@ -1,5 +1,5 @@
 /* CanGrow_Version.h gets generated from cangrow.sh */
 
 const char* CanGrowVer = "0.1-dev";
-const char* CanGrowBuild = "72bb58c";
+const char* CanGrowBuild = "e524826";