add interrupt mode define

include/sensor_raingauge.cpp

@@ -13,7 +13,7 @@ void Sensor_Raingauge::init() //Things to be done during setup()
   init_ok=true;
   
   pinMode(pin,INPUT_PULLUP);
-  attachInterrupt(digitalPinToInterrupt(pin),interrupt_raingauge,CHANGE); //anemometer interrupt
+  attachInterrupt(digitalPinToInterrupt(pin),interrupt_raingauge,SENSOR_Raingauge_interruptmode); //anemometer interrupt
 }
 
 //Also called during setup()

include/sensor_raingauge.h

@@ -26,12 +26,17 @@ private:
 
     //value in [mm] or [L/m^2]
 
-    //#define RAINGAUGE_FLIPAMOUNT 0.38888 //how much mm rain (L/m^2) per gauge flip.  mL (rain to flip) / A (opening area)
+    //#define RAINGAUGE_FLIPAMOUNT 0.38888 //how much mm rain (L/m^2) per gauge flip.  (rain to flip) [L] / A (opening area) [m^2]
     //was 0.69292 until 201702
-    /* Calibration:
+    /* Calibration 2018:
     * Test1: 1000mL -> 259 Flips
     * Test2: 1000mL -> 256  in ca 10min
-    * -> 3,9mL per Flip, opening diameter =113mm -> A=0,010028749
+    * -> 3,9mL per Flip, opening diameter =113mm -> A=0,010028749 m²
+    * -D RAINGAUGE_FLIPAMOUNT=0.29914
+    * 
+    * Calibration 2024:
+    * 60 Flips = 100mL => 1.66mL / Flip. Opening area 110mm*50mm = 0,005 m²
+    * -D RAINGAUGE_FLIPAMOUNT=0.332
     */
 
     void updateRaingauge();

platformio.ini

@@ -71,6 +71,7 @@ build_flags =
     -D RAINGAUGE_FLIPAMOUNT=0.29914
     -D SENSOR_Raingauge_readdelay=1000
     -D SENSOR_Raingauge_senddelaymax=1000*60*60  #also used for rain waiting timeout
+    -D SENSOR_Raingauge_interruptmode=CHANGE
     # Cable from Anemometer: Black=GND, Blue=3v3, Brown=Signal (needs pullup (internal))
     #Cable colors from anemometers sensor (before longer able): blue=gnd, brown=vcc, white=signal