57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
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#ifndef MICROBIT_MAGNETOMETER_SERVICE_H
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#define MICROBIT_MAGNETOMETER_SERVICE_H
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#include "MicroBit.h"
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// UUIDs for our service and characteristics
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extern const uint8_t MicroBitMagnetometerServiceUUID[];
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extern const uint8_t MicroBitMagnetometerServiceDataUUID[];
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extern const uint8_t MicroBitMagnetometerServiceBearingUUID[];
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extern const uint8_t MicroBitMagnetometerServicePeriodUUID[];
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/**
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* Class definition for a MicroBit BLE Magnetometer Service.
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* Provides access to live magnetometer data via BLE, and provides basic configuration options.
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*/
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class MicroBitMagnetometerService
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{
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public:
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/**
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* Constructor.
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* Create a representation of the MagnetometerService
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* @param _ble The instance of a BLE device that we're running on.
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*/
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MicroBitMagnetometerService(BLEDevice &_ble);
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private:
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/**
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* Callback. Invoked when any of our attributes are written via BLE.
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*/
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void onDataWritten(const GattWriteCallbackParams *params);
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/**
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* Magnetometer update callback
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*/
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void magnetometerUpdate(MicroBitEvent e);
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// Bluetooth stack we're running on.
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BLEDevice &ble;
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// memory for our 8 bit control characteristics.
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uint16_t magnetometerDataCharacteristicBuffer[3];
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uint16_t magnetometerBearingCharacteristicBuffer;
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uint16_t magnetometerPeriodCharacteristicBuffer;
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// Handles to access each characteristic when they are held by Soft Device.
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GattAttribute::Handle_t magnetometerDataCharacteristicHandle;
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GattAttribute::Handle_t magnetometerBearingCharacteristicHandle;
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GattAttribute::Handle_t magnetometerPeriodCharacteristicHandle;
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};
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#endif
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