added CO2 and VOC sensor

VOC_sensor.cpp

@@ -0,0 +1,69 @@
+#include "VOC_sensor.h"
+
+Adafruit_SGP30 sgp;
+uint8_t VOC_samples = 3600 / g_pms_report_period;
+#define VOC_MIN 0
+#define VOC_MAX 10000
+#define VOC_INTERVAL 120000 //ms
+
+uint32_t lastVOCtime = 0;
+//sensors
+AQSSensor SGP30_tvoc("TVOC", SGP30_TVOC, "ppb", device_name, VOC_samples, VOC_MIN, VOC_MAX);
+AQSSensor SGP30_eco2("eCO2", SGP30_eCO2, "ppm", device_name, VOC_samples, VOC_MIN, VOC_MAX);
+AQSSensor SGP30_rawh2("Raw_H2", SGP30_rawH2, "#", device_name, VOC_samples, VOC_MIN, VOC_MAX);
+AQSSensor SGP30_rawethanol("Raw_Ethanol", SGP30_rawEthanol, "#", device_name, VOC_samples, VOC_MIN, VOC_MAX);
+
+void initVOCsensor(void)
+{
+  Serial.println("VOCSensor: Init SGP30: ");
+
+  if (!sgp.begin())
+  {
+    Serial.println("VOCSensor: Init Failed (SGP30 not found)");
+  }
+  else
+  {
+    Serial.printf("VOCSensor: serial =0x%X%X%X\n", sgp.serialnumber[0], sgp.serialnumber[1], sgp.serialnumber[2]);
+    addSensorToList(&SGP30_tvoc);
+    addSensorToList(&SGP30_eco2);
+    addSensorToList(&SGP30_rawh2);
+    addSensorToList(&SGP30_rawethanol);
+
+    sgp.IAQmeasure();
+    sgp.IAQmeasureRaw();
+    
+    Serial.println("VOCSensor: Init OK");
+  }
+}
+
+void handleVOCsensor(void)
+{
+  uint32_t timenow = millis();
+  if ((timenow - lastVOCtime > VOC_INTERVAL) || !lastVOCtime)
+  {
+    if (!sgp.IAQmeasure())
+    {
+      Serial.println("VOCSensor: Measurement failed");
+      return;
+    }
+    SGP30_tvoc.set(sgp.TVOC);
+    SGP30_eco2.set(sgp.eCO2);
+
+    SGP30_tvoc.publish();
+SGP30_eco2.publish();
+
+    if (!sgp.IAQmeasureRaw())
+    {
+      Serial.println("VOCSensor: Raw Measurement failed");
+      return;
+    }
+
+    SGP30_rawethanol.set(sgp.rawEthanol);
+    SGP30_rawh2.set(sgp.rawH2);
+
+    SGP30_rawethanol.publish();
+    SGP30_rawh2.publish();
+
+    lastVOCtime = timenow;
+  }
+}