Jonas Skalman / Mbed 2 deprecated SenseAirLP8

Reading SenseAir LP8 CO2 sensor over bluetooth low energy

Dependencies:   BLE_API mbed nRF51822

LP8_Service.h@3:933dd59ad44d, 2017-08-18 (annotated)

Committer:
jony1401
Date:
Fri Aug 18 18:20:41 2017 +0000
Revision:
3:933dd59ad44d
Parent:
2:d02255d8c36f 
Updated version. Including more functionality.

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 3:933dd59ad44d 11 const static uint16_t LP8_SERVICE_UUID = 0xA000; // service identifier
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 3:933dd59ad44d 15 const static uint16_t LP8_ERROR_UUID = 0xA011; // LP8 Error bits characteristic
jony1401 2:d02255d8c36f 16 const static uint16_t LP8_WRITE_UUID = 0xA002; // Write calculation control from app to lp8
jony1401 2:d02255d8c36f 17 const static uint16_t LP8_WRITTEN_UUID = 0xB001; // display what was written into lp8 calculation control
jony1401 2:d02255d8c36f 18
jony1401 3:933dd59ad44d 19 const static uint16_t LP8_reWrite_uuid = 0xB111;
jony1401 0:ee3787c8e209 20
jony1401 3:933dd59ad44d 21
jony1401 3:933dd59ad44d 22 //constructor setup for Gatt Service
jony1401 3:933dd59ad44d 23 LP8_Service(BLE &_ble, /* Pass variables to characteristics and ble */
jony1401 3:933dd59ad44d 24 int co2ValueInitial,
jony1401 3:933dd59ad44d 25 float tempValueInitial,
jony1401 3:933dd59ad44d 26 int initialVcap,
jony1401 3:933dd59ad44d 27 uint32_t initialError,
jony1401 3:933dd59ad44d 28 uint8_t initCC,
jony1401 3:933dd59ad44d 29 uint8_t initSentCC):
jony1401 0:ee3787c8e209 30 ble(_ble),
jony1401 2:d02255d8c36f 31 lp8State(LP8_STATE_CHARACTERISTIC_UUID, &co2ValueInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 32 lp8Temp(LP8_READ_TEMP_UUID, &tempValueInitial, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 33 lp8Vcap(LP8_VCAP_UUID, &initialVcap, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 34 lp8Error(LP8_ERROR_UUID, &initialError, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 2:d02255d8c36f 35 lp8WriteCC(LP8_WRITE_UUID, &initCC),
jony1401 3:933dd59ad44d 36 lp8Written(LP8_WRITTEN_UUID, &initSentCC, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
jony1401 3:933dd59ad44d 37 lp8reWriteCC(LP8_reWrite_uuid, &initCC, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY)
jony1401 0:ee3787c8e209 38 {
jony1401 2:d02255d8c36f 39 //characterisitics
jony1401 3:933dd59ad44d 40 GattCharacteristic *charTable[] = {&lp8State, &lp8Temp, &lp8Vcap, &lp8Error, &lp8WriteCC, &lp8Written, &lp8reWriteCC };
jony1401 2:d02255d8c36f 41
jony1401 2:d02255d8c36f 42 //Service, Setup for LP8 GattService
jony1401 2:d02255d8c36f 43 GattService lp8Service(LP8_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
jony1401 2:d02255d8c36f 44
jony1401 2:d02255d8c36f 45 //add gatt service to ble stack
jony1401 2:d02255d8c36f 46 ble.addService(lp8Service);
jony1401 0:ee3787c8e209 47 };
jony1401 0:ee3787c8e209 48
jony1401 2:d02255d8c36f 49
jony1401 2:d02255d8c36f 50 //update Gattserver with new values to characteristics
jony1401 0:ee3787c8e209 51 void updateCo2Value(int co2Value)
jony1401 0:ee3787c8e209 52 {
jony1401 2:d02255d8c36f 53 ble.gattServer().write(lp8State.getValueAttribute().getHandle(),(uint8_t *) &co2Value, sizeof(co2Value));
jony1401 2:d02255d8c36f 54 };
jony1401 2:d02255d8c36f 55
jony1401 3:933dd59ad44d 56 void updateTempValue(float tempValue)
jony1401 2:d02255d8c36f 57 {
jony1401 2:d02255d8c36f 58 ble.gattServer().write(lp8Temp.getValueAttribute().getHandle(),(uint8_t *) &tempValue, sizeof(tempValue));
jony1401 2:d02255d8c36f 59 };
jony1401 2:d02255d8c36f 60
jony1401 2:d02255d8c36f 61 void updateVcapValue(int Vcap)
jony1401 2:d02255d8c36f 62 {
jony1401 2:d02255d8c36f 63 ble.gattServer().write(lp8Vcap.getValueAttribute().getHandle(),(uint8_t *) &Vcap, sizeof(Vcap));
jony1401 0:ee3787c8e209 64 };
jony1401 2:d02255d8c36f 65
jony1401 2:d02255d8c36f 66 void updateError(uint32_t lp8ErrorValue)
jony1401 2:d02255d8c36f 67 {
jony1401 2:d02255d8c36f 68 ble.gattServer().write(lp8Error.getValueAttribute().getHandle(),(uint8_t *) &lp8ErrorValue, sizeof(lp8ErrorValue));
jony1401 2:d02255d8c36f 69 };
jony1401 2:d02255d8c36f 70
jony1401 3:933dd59ad44d 71 //
jony1401 2:d02255d8c36f 72 void updateDataWritten(uint8_t lp8WrittenValue)
jony1401 2:d02255d8c36f 73 {
jony1401 2:d02255d8c36f 74 ble.gattServer().write(lp8Written.getValueAttribute().getHandle(),(uint8_t *) &lp8WrittenValue, sizeof(lp8WrittenValue));
jony1401 2:d02255d8c36f 75 }
jony1401 3:933dd59ad44d 76
jony1401 3:933dd59ad44d 77 void updateReWrite ( uint8_t lp8ReWrite )
jony1401 3:933dd59ad44d 78 {
jony1401 3:933dd59ad44d 79 ble.gattServer().write(lp8reWriteCC.getValueAttribute().getHandle(),(uint8_t *) &lp8ReWrite, sizeof(lp8ReWrite));
jony1401 3:933dd59ad44d 80 }
jony1401 2:d02255d8c36f 81
jony1401 0:ee3787c8e209 82
jony1401 0:ee3787c8e209 83 private:
jony1401 0:ee3787c8e209 84
jony1401 2:d02255d8c36f 85 BLE &ble; //
jony1401 2:d02255d8c36f 86
jony1401 2:d02255d8c36f 87 //Service Characteristics
jony1401 3:933dd59ad44d 88
jony1401 3:933dd59ad44d 89 //Read sensor values
jony1401 2:d02255d8c36f 90 ReadOnlyGattCharacteristic<int> lp8State; //
jony1401 3:933dd59ad44d 91 ReadOnlyGattCharacteristic<float> lp8Temp;
jony1401 2:d02255d8c36f 92 ReadOnlyGattCharacteristic<int> lp8Vcap;
jony1401 2:d02255d8c36f 93 ReadOnlyGattCharacteristic<uint32_t> lp8Error;
jony1401 3:933dd59ad44d 94
jony1401 3:933dd59ad44d 95 //Write Value
jony1401 3:933dd59ad44d 96 WriteOnlyGattCharacteristic<uint8_t> lp8WriteCC;
jony1401 3:933dd59ad44d 97
jony1401 3:933dd59ad44d 98 //read back written and cc byte(flag)
jony1401 2:d02255d8c36f 99 ReadOnlyGattCharacteristic<uint8_t> lp8Written;
jony1401 3:933dd59ad44d 100 ReadOnlyGattCharacteristic<uint8_t> lp8reWriteCC;
jony1401 0:ee3787c8e209 101
jony1401 0:ee3787c8e209 102
jony1401 0:ee3787c8e209 103 };
jony1401 0:ee3787c8e209 104 #endif