Diff: source/AirQualityService.h

Revision:

0:4d76c0bc0f78

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/AirQualityService.h	Tue Jun 27 05:18:38 2017 +0000
@@ -0,0 +1,55 @@
+#ifndef AIRQUALITYSERVICE_H
+#define AIRQUALITYSERVICE_H
+
+#include "ble/BLE.h"
+
+class AirQualityService {
+    public:
+        typedef uint16_t CO2Type_t;
+        typedef uint16_t TVOCType_t;
+        AirQualityService(BLE& _ble, UUID co2CID, UUID tvocCID) : 
+            ble(_ble),
+            co2Characteristic (co2CID, &co2, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
+            tvocCharacteristic(tvocCID, &tvoc, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) {
+                
+                uint8_t AQSID[16] = {   '@', 'M', 'T', 'M',
+                                        'C', 'O', '2', 'A',
+                                        'N', 'D', 'T', 'V',
+                                        'O', 'C',  '@',  '@',
+                                    };
+                                        
+                static bool serviceAdded = false; /* We should only ever need to add the information service once. */
+                UUID customUUID(AQSID);
+                
+                if (serviceAdded) {
+                    return;
+                }
+        
+                GattCharacteristic *charTable[] = { &co2Characteristic, &tvocCharacteristic };
+        
+                GattService customAQService(customUUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
+        
+                ble.gattServer().addService(customAQService);
+                serviceAdded = true;   
+                
+        }
+        
+        void updateCO2(uint16_t co2ppm) {
+            co2 = (CO2Type_t) co2ppm;
+            ble.gattServer().write(co2Characteristic.getValueHandle(), (uint8_t *) &co2, sizeof(CO2Type_t));
+        }
+        
+        void updateTVOC(uint16_t tvocppb) {
+            tvoc = (TVOCType_t) tvocppb;
+            ble.gattServer().write(tvocCharacteristic.getValueHandle(), (uint8_t *) &tvoc, sizeof(TVOCType_t));
+        }
+    
+    private:
+        BLE&        ble;
+        CO2Type_t   co2;
+        TVOCType_t  tvoc;
+        ReadOnlyGattCharacteristic<CO2Type_t>   co2Characteristic;
+        ReadOnlyGattCharacteristic<TVOCType_t>  tvocCharacteristic;
+};
+
+#endif
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