ble advertising data example

util.py

BLE_GAP_AD_TYPE_FLAGS                               = 0x01  # Flags for discoverability.
BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_MORE_AVAILABLE   = 0x02  # Partial list of 16 bit service UUIDs.
BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_COMPLETE         = 0x03  # Complete list of 16 bit service UUIDs.
BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_MORE_AVAILABLE   = 0x04  # Partial list of 32 bit service UUIDs.
BLE_GAP_AD_TYPE_32BIT_SERVICE_UUID_COMPLETE         = 0x05  # Complete list of 32 bit service UUIDs.
BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_MORE_AVAILABLE  = 0x06  # Partial list of 128 bit service UUIDs.
BLE_GAP_AD_TYPE_128BIT_SERVICE_UUID_COMPLETE        = 0x07  # Complete list of 128 bit service UUIDs.
BLE_GAP_AD_TYPE_SHORT_LOCAL_NAME                    = 0x08  # Short local device name.
BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME                 = 0x09  # Complete local device name.
BLE_GAP_AD_TYPE_TX_POWER_LEVEL                      = 0x0A  # Transmit power level.
BLE_GAP_AD_TYPE_CLASS_OF_DEVICE                     = 0x0D  # Class of device.
BLE_GAP_AD_TYPE_SIMPLE_PAIRING_HASH_C               = 0x0E  # Simple Pairing Hash C.
BLE_GAP_AD_TYPE_SIMPLE_PAIRING_RANDOMIZER_R         = 0x0F  # Simple Pairing Randomizer R.
BLE_GAP_AD_TYPE_SECURITY_MANAGER_TK_VALUE           = 0x10  # Security Manager TK Value.
BLE_GAP_AD_TYPE_SECURITY_MANAGER_OOB_FLAGS          = 0x11  # Security Manager Out Of Band Flags.
BLE_GAP_AD_TYPE_SLAVE_CONNECTION_INTERVAL_RANGE     = 0x12  # Slave Connection Interval Range.
BLE_GAP_AD_TYPE_SOLICITED_SERVICE_UUIDS_16BIT       = 0x14  # List of 16-bit Service Solicitation UUIDs.
BLE_GAP_AD_TYPE_SOLICITED_SERVICE_UUIDS_128BIT      = 0x15  # List of 128-bit Service Solicitation UUIDs.
BLE_GAP_AD_TYPE_SERVICE_DATA                        = 0x16  # Service Data - 16-bit UUID.
BLE_GAP_AD_TYPE_PUBLIC_TARGET_ADDRESS               = 0x17  # Public Target Address.
BLE_GAP_AD_TYPE_RANDOM_TARGET_ADDRESS               = 0x18  # Random Target Address.
BLE_GAP_AD_TYPE_APPEARANCE                          = 0x19  # Appearance.
BLE_GAP_AD_TYPE_ADVERTISING_INTERVAL                = 0x1A  # Advertising Interval.
BLE_GAP_AD_TYPE_LE_BLUETOOTH_DEVICE_ADDRESS         = 0x1B  # LE Bluetooth Device Address.
BLE_GAP_AD_TYPE_LE_ROLE                             = 0x1C  # LE Role.
BLE_GAP_AD_TYPE_SIMPLE_PAIRING_HASH_C256            = 0x1D  # Simple Pairing Hash C-256.
BLE_GAP_AD_TYPE_SIMPLE_PAIRING_RANDOMIZER_R256      = 0x1E  # Simple Pairing Randomizer R-256.
BLE_GAP_AD_TYPE_SERVICE_DATA_32BIT_UUID             = 0x20  # Service Data - 32-bit UUID.
BLE_GAP_AD_TYPE_SERVICE_DATA_128BIT_UUID            = 0x21  # Service Data - 128-bit UUID.
BLE_GAP_AD_TYPE_LESC_CONFIRMATION_VALUE             = 0x22  # LE Secure Connections Confirmation Value
BLE_GAP_AD_TYPE_LESC_RANDOM_VALUE                   = 0x23  # LE Secure Connections Random Value
BLE_GAP_AD_TYPE_URI                                 = 0x24  # URI
BLE_GAP_AD_TYPE_3D_INFORMATION_DATA                 = 0x3D  # 3D Information Data.
BLE_GAP_AD_TYPE_MANUFACTURER_SPECIFIC_DATA          = 0xFF  # Manufacturer Specific Data.

BLE_ADV_AD_TYPE_FIELD_SIZE = 1
BLE_ADV_LENGTH_FIELD_SIZE = 1
BLE_AD_TYPE_FLAGS_DATA_SIZE = 1

BLE_GAP_ADV_FLAG_LE_LIMITED_DISC_MODE         = (0x01)   # LE Limited Discoverable Mode.
BLE_GAP_ADV_FLAG_LE_GENERAL_DISC_MODE         = (0x02)   # LE General Discoverable Mode.
BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED         = (0x04)   # BR/EDR not supported.
BLE_GAP_ADV_FLAG_LE_BR_EDR_CONTROLLER         = (0x08)   # Simultaneous LE and BR/EDR, Controller.
BLE_GAP_ADV_FLAG_LE_BR_EDR_HOST               = (0x10)   # Simultaneous LE and BR/EDR, Host.
BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE   = (BLE_GAP_ADV_FLAG_LE_LIMITED_DISC_MODE | BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED)  # LE Limited Discoverable Mode, BR/EDR not supported.
BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE   = (BLE_GAP_ADV_FLAG_LE_GENERAL_DISC_MODE | BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED)  # LE General Discoverable Mode, BR/EDR not supported.


def adv_data(device_name=None):
    data = []
    if device_name:
        data.append(BLE_ADV_AD_TYPE_FIELD_SIZE+len(device_name))
        data.append(BLE_GAP_AD_TYPE_COMPLETE_LOCAL_NAME)
        data.extend((ord(c) for c in device_name))

    data.append(BLE_ADV_AD_TYPE_FIELD_SIZE + BLE_AD_TYPE_FLAGS_DATA_SIZE)
    data.append(BLE_GAP_AD_TYPE_FLAGS)
    data.append(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE)

    return bytearray(data)