Delphi xe10 ios9
- #DELPHI XE10 IOS9 HOW TO#
- #DELPHI XE10 IOS9 WINDOWS 10#
- #DELPHI XE10 IOS9 CODE#
- #DELPHI XE10 IOS9 BLUETOOTH#
The bit 0 of the Flags field defines the Heart Rate value format: UINT8 or UINT16.
#DELPHI XE10 IOS9 BLUETOOTH#
For example, you can find the data package details on the official page for the Heart Rate Measurement characteristic: Heart Rate Measurement Data Package Structure.įor example, for the Heart rate measurement characteristic, the first byte contains flags with information about the data transported on the Bluetooth LE package. To translate the data into readable information, follow the specification on the GATT profile. The client device receives an array of data from the server. To stop monitoring use the UnSubscribeToCharacteristic method. For example, to start monitoring the heart rate sensor you can read the current value with the GetCharacteristic and then use the SubscribeToCharacteristic method to get the information when it changes. You can also subscribe to a characteristic to get the information each time it changes. Use WriteCharacteristic to write if this option is available on the server. To get the current value of a characteristic use the ReadCharacteristic method. The OnCharacteristicRead event handler fires after reading the characteristic. Once you get the characteristic using GetCharacteristic you can read or write (if available) the information contained. Reading, Writing or Subscribing to a Characteristic Use the GetCharacteristics method to get a list with the characteristics for a particular service, use the GetCharacteristic method to get the information of a particular characteristic. For example, the Heart Rate service has a characteristic to measure the heart rate, Heart Rate Measurement with UUID 00002A37-0000-1000-8000-00805F9B34FB and another characteristic to identify the location of the sensor, Body Sensor Location with UUID 00002A38-0000-1000-8000-00805F9B34FB. Each characteristic is identified by an official number. One service can contain one ore more characteristic that provide information for the particular service. Use the GetServices method to get a list of services from a device or the GetService method to get a particular service from a device. Once you discover the services, you need to get them. Once the services are discovered the OnServicesDiscovered event is triggered. Use the DiscoverServices method to discover the services for a particular device.
#DELPHI XE10 IOS9 CODE#
To get a service you need to use the complete UUID which is the assigned number for the standard service + the base bluetooth code, for example the complete code for the Heart Rate service is 0000180D-0000-1000-8000-00805F9B34FB. The official page with Standard Services information is Standard BluetoothLE Services. For example, the Heart Rate service has an official number assigned: "0x180D". Services are collections of characteristics and relationships to other services that encapsulate the behavior of part of a device.Ī GATT profile includes one or more standard services that are identified by a number. StartDiscovery ( 2500, ABLEAdvertisedDataFilterList ) end Services and Characteristics Discovering and Getting Services Add ( ABLEAdvertisedDataFilter ) BluetoothLE1. ServiceUUID := HeartRateService ABLEAdvertisedDataFilterList. Create ABLEAdvertisedDataFilterList := TBluetoothLEScanFilterList. Procedure DoScanWithFilter const HeartRateService : TGUID = '' var ABLEAdvertisedDataFilter : TBluetoothLEScanFilter ABLEAdvertisedDataFilterList : TBluetoothLEScanFilterList begin ABLEAdvertisedDataFilter := TBluetoothLEScanFilter. TBluetoothLEManager is the main class for Bluetooth Low Energy communications. TBluetoothLE includes the System.Bluetooth unit in your application and internally calls TBluetoothLEManager.Current to get an instance of TBluetoothLEManager. Use the new TBluetoothLE component to implement the RTL BluetoothLE feature for server and client applications. The official page with the GATT Profiles is GATT Specifications for Standard Profiles. The GATT profile is the combination of service + characteristics. The server device with a Heart Rate Sensor exposes the standard Heart Rate Service so that the BluetoothLE client discovers the service and starts collecting data, for example the bpm (beats per minute). For example, there is a Heart Rate profile that is used for fitness or health applications.
#DELPHI XE10 IOS9 HOW TO#
Profiles are high level definitions that define how to use standard services in your applications. GATT (GENERIC ATTRIBUTE PROFILE) Profiles
#DELPHI XE10 IOS9 WINDOWS 10#
Attention: Applications running on Windows platform lower than Windows 10 do not support Bluetooth LE.