diff --git a/esp32/include/HomieConfiguration.h b/esp32/include/HomieConfiguration.h
index 124d166..23dc690 100644
--- a/esp32/include/HomieConfiguration.h
+++ b/esp32/include/HomieConfiguration.h
@@ -27,6 +27,8 @@
 #define NUMBER_TYPE                     "Float"        /**< numberic information, published or read in Homie */
 
 /**
+ * @}
+ * 
  * @name Temperatur Node
  * @{
  **/
diff --git a/esp32/include/HomieTypes.h b/esp32/include/HomieTypes.h
index 4fae0cc..3105f2d 100644
--- a/esp32/include/HomieTypes.h
+++ b/esp32/include/HomieTypes.h
@@ -13,12 +13,22 @@
 
 #include <Homie.h>
 
+/**
+ * @name Sensor types
+ * possible sensors:
+ * @{
+ **/
+
 #define FOREACH_SENSOR(SENSOR) \
         SENSOR(NONE)   \
         SENSOR(CAPACITIVE_FREQUENCY)  \
         SENSOR(ANALOG_RESISTANCE_PROBE)   \
         SENSOR(SHT20)
 
+/**
+ * @}
+ */
+
 #define GENERATE_ENUM(ENUM) ENUM,
 #define GENERATE_STRING(STRING) #STRING,
 
diff --git a/esp32/platformio.ini b/esp32/platformio.ini
index 28cdfff..39ddff5 100644
--- a/esp32/platformio.ini
+++ b/esp32/platformio.ini
@@ -13,6 +13,13 @@ platform = espressif32
 board = esp32doit-devkit-v1
 framework = arduino
 build_flags = -DPIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY
+    -DPLANT0_SENSORTYPE=SHT20
+    -DPLANT1_SENSORTYPE=ANALOG_RESISTANCE_PROBE
+    -DPLANT2_SENSORTYPE=CAPACITIVE_FREQUENCY
+    -DPLANT3_SENSORTYPE=CAPACITIVE_FREQUENCY
+    -DPLANT4_SENSORTYPE=CAPACITIVE_FREQUENCY
+    -DPLANT5_SENSORTYPE=CAPACITIVE_FREQUENCY
+    -DPLANT6_SENSORTYPE=CAPACITIVE_FREQUENCY
 board_build.partitions = defaultWithSmallerSpiffs.csv
 
 
diff --git a/esp32/src/main.cpp b/esp32/src/main.cpp
index be66d78..80df651 100644
--- a/esp32/src/main.cpp
+++ b/esp32/src/main.cpp
@@ -92,14 +92,36 @@ DallasTemperature sensors(&oneWire);
 DS2438 battery(&oneWire, 0.0333333f, AMOUNT_SENOR_QUERYS);
 VL53L0X tankSensor;
 
+#ifndef PLANT0_SENSORTYPE
+#error "Sensor type must be specified, see HomieTypes.h - Sensor types"
+#endif
+#ifndef PLANT1_SENSORTYPE
+#error "Sensor type must be specified, see HomieTypes.h - Sensor types"
+#endif
+#ifndef PLANT2_SENSORTYPE
+#error "Sensor type must be specified, see HomieTypes.h - Sensor types"
+#endif
+#ifndef PLANT3_SENSORTYPE
+#error "Sensor type must be specified, see HomieTypes.h - Sensor types"
+#endif
+#ifndef PLANT4_SENSORTYPE
+#error "Sensor type must be specified, see HomieTypes.h - Sensor types"
+#endif
+#ifndef PLANT5_SENSORTYPE
+#error "Sensor type must be specified, see HomieTypes.h - Sensor types"
+#endif
+#ifndef PLANT6_SENSORTYPE
+#error "Sensor type must be specified, see HomieTypes.h - Sensor types"
+#endif
+
 Plant mPlants[MAX_PLANTS] = {
-    Plant(SENSOR_PLANT0, OUTPUT_PUMP0, 0, &plant0, &mSetting0, SHT20),
-    Plant(SENSOR_PLANT1, OUTPUT_PUMP1, 1, &plant1, &mSetting1, ANALOG_RESISTANCE_PROBE),
-    Plant(SENSOR_PLANT2, OUTPUT_PUMP2, 2, &plant2, &mSetting2, CAPACITIVE_FREQUENCY),
-    Plant(SENSOR_PLANT3, OUTPUT_PUMP3, 3, &plant3, &mSetting3, CAPACITIVE_FREQUENCY),
-    Plant(SENSOR_PLANT4, OUTPUT_PUMP4, 4, &plant4, &mSetting4, CAPACITIVE_FREQUENCY),
-    Plant(SENSOR_PLANT5, OUTPUT_PUMP5, 5, &plant5, &mSetting5, CAPACITIVE_FREQUENCY),
-    Plant(SENSOR_PLANT6, OUTPUT_PUMP6, 6, &plant6, &mSetting6, CAPACITIVE_FREQUENCY)};
+    Plant(SENSOR_PLANT0, OUTPUT_PUMP0, 0, &plant0, &mSetting0, PLANT0_SENSORTYPE),
+    Plant(SENSOR_PLANT1, OUTPUT_PUMP1, 1, &plant1, &mSetting1, PLANT1_SENSORTYPE),
+    Plant(SENSOR_PLANT2, OUTPUT_PUMP2, 2, &plant2, &mSetting2, PLANT2_SENSORTYPE),
+    Plant(SENSOR_PLANT3, OUTPUT_PUMP3, 3, &plant3, &mSetting3, PLANT3_SENSORTYPE),
+    Plant(SENSOR_PLANT4, OUTPUT_PUMP4, 4, &plant4, &mSetting4, PLANT4_SENSORTYPE),
+    Plant(SENSOR_PLANT5, OUTPUT_PUMP5, 5, &plant5, &mSetting5, PLANT5_SENSORTYPE),
+    Plant(SENSOR_PLANT6, OUTPUT_PUMP6, 6, &plant6, &mSetting6, PLANT6_SENSORTYPE)};
 
 /******************************************************************************
  *                            LOCAL FUNCTIONS