Fix reference to sensor slot method

code/espurna/sensors/AnalogSensor.h

@@ -37,6 +37,11 @@ class AnalogSensor : public BaseSensor {
             return String("ANALOG @ GPIO0");
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             _error = SENSOR_ERROR_OK;

code/espurna/sensors/BaseSensor.h

@@ -62,7 +62,7 @@ class BaseSensor {
         static void manifest(JsonArray& root) {};
 
         // Descriptive name of the slot # index
-        String slot(unsigned char index) { return description(); }
+        virtual String slot(unsigned char index) {};
 
         // Sensor ID
         unsigned char getID() { return _sensor_id; };

code/espurna/sensors/DHTSensor.h

@@ -90,6 +90,11 @@ class DHTSensor : public BaseSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             _error = SENSOR_ERROR_OK;

code/espurna/sensors/DigitalSensor.h

@@ -67,6 +67,11 @@ class DigitalSensor : public BaseSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             _error = SENSOR_ERROR_OK;

code/espurna/sensors/ECH1560Sensor.h

@@ -82,6 +82,11 @@ class ECH1560Sensor : public BaseSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             _error = SENSOR_ERROR_OK;

code/espurna/sensors/EventSensor.h

@@ -81,6 +81,11 @@ class EventSensor : public BaseSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             _error = SENSOR_ERROR_OK;

code/espurna/sensors/HLW8012Sensor.h

@@ -162,6 +162,11 @@ class HLW8012Sensor : public BaseSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             _error = SENSOR_ERROR_OK;

code/espurna/sensors/I2CSensor.h

@@ -23,6 +23,11 @@ class I2CSensor : public BaseSensor {
             return _address;
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
     protected:
 
         // Specific for I2C sensors

code/espurna/sensors/MHZ19Sensor.h

@@ -89,6 +89,11 @@ class MHZ19Sensor : public BaseSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             _error = SENSOR_ERROR_OK;

code/espurna/sensors/SI7021Sensor.h

@@ -85,6 +85,11 @@ class SI7021Sensor : public I2CSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Type for slot # index
         unsigned char type(unsigned char index) {
             if (index < _count) {

code/espurna/sensors/V9261FSensor.h

@@ -77,6 +77,11 @@ class V9261FSensor : public BaseSensor {
             return String(buffer);
         }
 
+        // Descriptive name of the slot # index
+        String slot(unsigned char index) {
+            return description();
+        };
+
         // Loop-like method, call it in your main loop
         void tick() {
             _read();