add pm readings

Adafruit_Sensor.h

@@ -72,6 +72,12 @@ typedef enum {
   SENSOR_TYPE_NOX_INDEX = (20),
   SENSOR_TYPE_CO2 = (21),
   SENSOR_TYPE_eCO2 = (22),
+  SENSOR_TYPE_PM10_STD = (23),
+  SENSOR_TYPE_PM25_STD = (24),
+  SENSOR_TYPE_PM100_STD = (25),
+  SENSOR_TYPE_PM10_ENV = (26),
+  SENSOR_TYPE_PM25_ENV = (27),
+  SENSOR_TYPE_PM100_ENV = (28)
 } sensors_type_t;
 
 /** struct sensors_vec_s is used to return a vector in a common format. */
@@ -147,6 +153,18 @@ typedef struct {
     float CO2;       /**< Measured CO2 in parts per million (ppm) */
     float eCO2;      /**< equivalent/estimated CO2 in parts per million (ppm
                         estimated from some other measurement) */
+    float pm10_std;  /**< Standard Particulate Matter 1.0 in parts per million
+                        (ppm) */
+    float pm25_std;  /**< Standard Particulate Matter 2.5 in parts per million
+                        (ppm) */
+    float pm100_std; /**< Standard Particulate Matter 100 in parts per million
+                        (ppm) */
+    float pm10_env;  /**< Environmental Particulate Matter 1.0 in parts per
+                        million (ppm) */
+    float pm25_env;  /**< Environmental Particulate Matter 2.5 in parts per
+                        million (ppm) */
+    float pm100_env; /**< EnvironmentalParticulate Matter 100 in parts per
+                        million (ppm) */
     sensors_color_t color; /**< color in RGB component values */
   };                       ///< Union for the wide ranges of data we can carry
 } sensors_event_t;