Jonas Skalman / Mbed 2 deprecated SenseAirLP8

Reading SenseAir LP8 CO2 sensor over bluetooth low energy

Dependencies:   BLE_API mbed nRF51822

LP8_Service.h@2:d02255d8c36f, 2017-08-14 (annotated)

Committer:
jony1401
Date:
Mon Aug 14 20:52:48 2017 +0000
Revision:
2:d02255d8c36f
Parent:
0:ee3787c8e209
Child:
3:933dd59ad44d
v2.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jony1401 0:ee3787c8e209 1 #ifndef LP8_SERVICE_H
jony1401 0:ee3787c8e209 2 #define LP8_SERVICE_H
jony1401 0:ee3787c8e209 3
jony1401 0:ee3787c8e209 4 /* LP8 Gatt Service Class */
jony1401 0:ee3787c8e209 5
jony1401 0:ee3787c8e209 6 class LP8_Service
jony1401 0:ee3787c8e209 7 {
jony1401 0:ee3787c8e209 8 public:
jony1401 0:ee3787c8e209 9
jony1401 2:d02255d8c36f 10 //UUID descriptors
jony1401 2:d02255d8c36f 11 const static uint16_t LP8_SERVICE_UUID = 0xA000; //
jony1401 2:d02255d8c36f 12 const static uint16_t LP8_STATE_CHARACTERISTIC_UUID = 0xA001; // CO2 concentration characteristic
jony1401 2:d02255d8c36f 13 const static uint16_t LP8_READ_TEMP_UUID = 0x2A1F; // temp (Celsius) characteristic
jony1401 2:d02255d8c36f 14 const static uint16_t LP8_VCAP_UUID = 0xA010; // Vcap characteristic (mV)
jony1401 2:d02255d8c36f 15 const static uint16_t LP8_ERROR_UUID = 0xA011; // LP8 Error bits characteristic
jony1401 2:d02255d8c36f 16
jony1401 2:d02255d8c36f 17 const static uint16_t LP8_WRITE_UUID = 0xA002; // Write calculation control from app to lp8
jony1401 2:d02255d8c36f 18 const static uint16_t LP8_WRITTEN_UUID = 0xB001; // display what was written into lp8 calculation control
jony1401 2:d02255d8c36f 19
jony1401 0:ee3787c8e209 20
jony1401 0:ee3787c8e209 21 //constructor setup for Gatt Service
jony1401 2:d02255d8c36f 22 LP8_Service(BLE &_ble, int co2ValueInitial, double tempValueInitial,
jony1401 2:d02255d8c36f 23 int initialVcap, uint32_t initialError, uint8_t initCC): /* Pass variables to ble stack */
jony1401 0:ee3787c8e209 24 ble(_ble),
jony1401 2:d02255d8c36f 25 lp8State(LP8_STATE_CHARACTERISTIC_UUID, &co2ValueInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 26 lp8Temp(LP8_READ_TEMP_UUID, &tempValueInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 27 lp8Vcap(LP8_VCAP_UUID, &initialVcap, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 28 lp8Error(LP8_ERROR_UUID, &initialError, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 29 lp8WriteCC(LP8_WRITE_UUID, &initCC),
jony1401 2:d02255d8c36f 30 lp8Written(LP8_WRITTEN_UUID, &initCC, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
jony1401 0:ee3787c8e209 31 {
jony1401 2:d02255d8c36f 32 //characterisitics
jony1401 2:d02255d8c36f 33 GattCharacteristic *charTable[] = {&lp8State, &lp8Temp, &lp8Vcap, &lp8Error, &lp8WriteCC, &lp8Written };
jony1401 2:d02255d8c36f 34
jony1401 2:d02255d8c36f 35 //Service, Setup for LP8 GattService
jony1401 2:d02255d8c36f 36 GattService lp8Service(LP8_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
jony1401 2:d02255d8c36f 37
jony1401 2:d02255d8c36f 38 //add gatt service to ble stack
jony1401 2:d02255d8c36f 39 ble.addService(lp8Service);
jony1401 0:ee3787c8e209 40 };
jony1401 0:ee3787c8e209 41
jony1401 2:d02255d8c36f 42
jony1401 2:d02255d8c36f 43 //update Gattserver with new values to characteristics
jony1401 0:ee3787c8e209 44 void updateCo2Value(int co2Value)
jony1401 0:ee3787c8e209 45 {
jony1401 2:d02255d8c36f 46 ble.gattServer().write(lp8State.getValueAttribute().getHandle(),(uint8_t *) &co2Value, sizeof(co2Value));
jony1401 2:d02255d8c36f 47 };
jony1401 2:d02255d8c36f 48
jony1401 2:d02255d8c36f 49 void updateTempValue(double tempValue)
jony1401 2:d02255d8c36f 50 {
jony1401 2:d02255d8c36f 51 ble.gattServer().write(lp8Temp.getValueAttribute().getHandle(),(uint8_t *) &tempValue, sizeof(tempValue));
jony1401 2:d02255d8c36f 52 };
jony1401 2:d02255d8c36f 53
jony1401 2:d02255d8c36f 54 void updateVcapValue(int Vcap)
jony1401 2:d02255d8c36f 55 {
jony1401 2:d02255d8c36f 56 ble.gattServer().write(lp8Vcap.getValueAttribute().getHandle(),(uint8_t *) &Vcap, sizeof(Vcap));
jony1401 0:ee3787c8e209 57 };
jony1401 2:d02255d8c36f 58
jony1401 2:d02255d8c36f 59 void updateError(uint32_t lp8ErrorValue)
jony1401 2:d02255d8c36f 60 {
jony1401 2:d02255d8c36f 61 ble.gattServer().write(lp8Error.getValueAttribute().getHandle(),(uint8_t *) &lp8ErrorValue, sizeof(lp8ErrorValue));
jony1401 2:d02255d8c36f 62 };
jony1401 2:d02255d8c36f 63
jony1401 2:d02255d8c36f 64 //reWrite written data
jony1401 2:d02255d8c36f 65 void updateDataWritten(uint8_t lp8WrittenValue)
jony1401 2:d02255d8c36f 66 {
jony1401 2:d02255d8c36f 67 ble.gattServer().write(lp8Written.getValueAttribute().getHandle(),(uint8_t *) &lp8WrittenValue, sizeof(lp8WrittenValue));
jony1401 2:d02255d8c36f 68 }
jony1401 2:d02255d8c36f 69
jony1401 0:ee3787c8e209 70
jony1401 0:ee3787c8e209 71 private:
jony1401 0:ee3787c8e209 72
jony1401 2:d02255d8c36f 73 BLE &ble; //
jony1401 2:d02255d8c36f 74
jony1401 2:d02255d8c36f 75 //Service Characteristics
jony1401 2:d02255d8c36f 76 //Read Values
jony1401 2:d02255d8c36f 77 ReadOnlyGattCharacteristic<int> lp8State; //
jony1401 2:d02255d8c36f 78 ReadOnlyGattCharacteristic<double> lp8Temp;
jony1401 2:d02255d8c36f 79 ReadOnlyGattCharacteristic<int> lp8Vcap;
jony1401 2:d02255d8c36f 80 ReadOnlyGattCharacteristic<uint32_t> lp8Error;
jony1401 2:d02255d8c36f 81 ReadOnlyGattCharacteristic<uint8_t> lp8Written;
jony1401 2:d02255d8c36f 82 //Write Values
jony1401 2:d02255d8c36f 83 WriteOnlyGattCharacteristic<uint8_t> lp8WriteCC;
jony1401 0:ee3787c8e209 84
jony1401 0:ee3787c8e209 85
jony1401 0:ee3787c8e209 86 };
jony1401 0:ee3787c8e209 87 #endif