Merge pull request #159 from BlueAndi/master

Synchronize with master

data/version.json

@@ -1,3 +1,3 @@
 {
-    "version": "v7.2.0"
+    "version": "v7.2.1"
 }

doc/doxygen/Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = Pixelix
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v7.2.0
+PROJECT_NUMBER         = v7.2.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

lib/Common/src/ISensor.hpp

@@ -66,6 +66,12 @@ class ISensor
      */
     virtual void begin() = 0;
 
+    /**
+     * Process the sensor driver. Mainly used to read the sensor value and
+     * provide its data cached to the sensor channels.
+     */
+    virtual void process() = 0;
+
     /**
      * Get sensor name.
      * 

lib/Common/src/SensorChannelType.hpp

@@ -161,6 +161,7 @@ class SensorChannelType<float, ISensorChannel::DATA_TYPE_FLOAT32> : public ISens
 
     /**
      * Get data value.
+     * If there is any error, it will return NaN.
      * 
      * @return Sensor data value
      */
@@ -182,6 +183,7 @@ class SensorChannelType<float, ISensorChannel::DATA_TYPE_FLOAT32> : public ISens
 
     /**
      * Get value as string.
+     * If there is any error, it will return "NAN".
      * 
      * @param[in] precision The precision (ignored for integer values) of the value.
      * 
@@ -191,7 +193,7 @@ class SensorChannelType<float, ISensorChannel::DATA_TYPE_FLOAT32> : public ISens
     {
         float   value       = getValue();
         String  valueStr;
-        char    buffer[20];
+        char    buffer[20U];
 
         (void)snprintf(buffer, sizeof(buffer), "%.*F", precision, value);
         valueStr = buffer;

lib/Common/src/SensorDataProviderImpl.cpp

@@ -71,6 +71,19 @@ void SensorDataProviderImpl::begin()
     }
 }
 
+void SensorDataProviderImpl::process()
+{
+    uint8_t index = 0U;
+
+    for(index = 0U; index < m_cnt; ++index)
+    {
+        if (nullptr != m_sensors[index])
+        {
+            m_sensors[index]->process();
+        }
+    }
+}
+
 ISensor* SensorDataProviderImpl::getSensor(uint8_t index)
 {
     ISensor*    sensor  = nullptr;

lib/Common/src/SensorDataProviderImpl.h

@@ -85,6 +85,11 @@ class SensorDataProviderImpl
      */
     void begin();
 
+    /**
+     * Process the sensor drivers.
+     */
+    void process();
+
     /**
      * Get number of installed sensor drivers, independed of the physical
      * sensor availability.

lib/Sensors/src/SensorBattery.h

@@ -169,6 +169,15 @@ class SensorBattery : public ISensor
      */
     void begin() final;
 
+    /**
+     * Process the sensor driver. Mainly used to read the sensor value and
+     * provide its data cached to the sensor channels.
+     */
+    void process() final
+    {
+        /* Nothing to do.*/
+    }
+
     /**
      * Get sensor name.
      * 

lib/Sensors/src/SensorDhtX.h

@@ -93,13 +93,24 @@ class DhtXTemperatureChannel : public SensorChannelFloat32
     }
 
     /**
-     * Get data value.
+     * Get the temperature.
+     * If there is any error, it will return NaN.
      * 
-     * @return Sensor data value in °C.
+     * @return Temperature in °C.
      */
     float getValue() final
     {
-        return m_driver.readTemperature() + m_offset;
+        /* readTemperature() will provide the last value from the cache in case
+         * the request period is lower than 2s.
+         */
+        float temperature = m_driver.readTemperature();
+
+        if (false == isnan(temperature))
+        {
+            temperature += m_offset;
+        }
+
+        return temperature;
     }
 
     /**
@@ -168,13 +179,24 @@ class DhtXHumidityChannel : public SensorChannelFloat32
     }
 
     /**
-     * Get data value.
+     * Get the humidity.
+     * If there is any error, it will return NaN.
      * 
-     * @return Sensor data value in %.
+     * @return Humidity in %.
      */
     float getValue() final
     {
-        return m_driver.readHumidity() + m_offset;
+        /* readHumidity() will provide the last value from the cache in case
+         * the request period is lower than 2s.
+         */
+        float humidity = m_driver.readHumidity();
+
+        if (false == isnan(humidity))
+        {
+            humidity += m_offset;
+        }
+
+        return humidity;
     }
 
     /**
@@ -251,6 +273,15 @@ class SensorDhtX : public ISensor
      */
     void begin() final;
 
+    /**
+     * Process the sensor driver. Mainly used to read the sensor value and
+     * provide its data cached to the sensor channels.
+     */
+    void process() final
+    {
+        /* Nothing to do.*/
+    }
+
     /**
      * Get sensor name.
      * 

lib/Sensors/src/SensorLdr.h

@@ -189,6 +189,15 @@ class SensorLdr : public ISensor
      */
     void begin() final;
 
+    /**
+     * Process the sensor driver. Mainly used to read the sensor value and
+     * provide its data cached to the sensor channels.
+     */
+    void process() final
+    {
+        /* Nothing to do.*/
+    }
+
     /**
      * Get sensor name.
      * 

lib/Sensors/src/SensorSht3X.cpp

@@ -75,6 +75,14 @@ void SensorSht3X::begin()
     }
 }
 
+void SensorSht3X::process()
+{
+    if (true == m_isAvailable)
+    {
+        (void)m_driver.readSample();
+    }
+}
+
 const char* SensorSht3X::getName() const
 {
     /* Model can not be read back and the automatic detection may be enabled,

lib/Sensors/src/SensorSht3X.h

@@ -93,13 +93,21 @@ class Sht3XTemperatureChannel : public SensorChannelFloat32
     }
 
     /**
-     * Get data value.
+     * Get the temperature.
+     * If there is any error, it will return NaN.
      * 
-     * @return Sensor data value in °C.
+     * @return Temperature in °C.
      */
     float getValue() final
     {
-        return m_driver.getTemperature() + m_offset;
+        float temperature = m_driver.getTemperature();
+
+        if (false == isnan(temperature))
+        {
+            temperature += m_offset;
+        }
+
+        return temperature;
     }
 
     /**
@@ -168,13 +176,21 @@ class Sht3XHumidityChannel : public SensorChannelFloat32
     }
 
     /**
-     * Get data value.
+     * Get the humidity.
+     * If there is any error, it will return NaN.
      * 
-     * @return Sensor data value in %.
+     * @return Humidity in %.
      */
     float getValue() final
     {
-        return m_driver.getHumidity() + m_offset;
+        float humidity = m_driver.getHumidity();
+
+        if (false == isnan(humidity))
+        {
+            humidity += m_offset;
+        }
+
+        return humidity;
     }
 
     /**
@@ -239,6 +255,12 @@ class SensorSht3X : public ISensor
      */
     void begin() final;
 
+    /**
+     * Process the sensor driver. Mainly used to read the sensor value and
+     * provide its data cached to the sensor channels.
+     */
+    void process() final;
+
     /**
      * Get sensor name.
      *