examples/bluetooth: Use UUIDs directly to add services to adv payload.
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@ -11,8 +11,14 @@ import struct
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_ADV_TYPE_FLAGS = const(0x01)
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_ADV_TYPE_NAME = const(0x09)
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_ADV_TYPE_UUID16_COMPLETE = const(0x3)
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_ADV_TYPE_UUID32_COMPLETE = const(0x5)
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_ADV_TYPE_UUID128_COMPLETE = const(0x7)
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_ADV_TYPE_UUID16_MORE = const(0x2)
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_ADV_TYPE_UUID32_MORE = const(0x4)
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_ADV_TYPE_UUID128_MORE = const(0x6)
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_ADV_TYPE_APPEARANCE = const(0x19)
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# Generate a payload to be passed to gap_advertise(adv_data=...).
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def advertising_payload(limited_disc=False, br_edr=False, name=None, services=None, appearance=0):
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payload = bytearray()
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@ -28,8 +34,13 @@ def advertising_payload(limited_disc=False, br_edr=False, name=None, services=No
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if services:
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for uuid in services:
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# TODO: Support bluetooth.UUID class.
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_append(_ADV_TYPE_UUID16_COMPLETE, struct.pack('<h', uuid))
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b = bytes(uuid)
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if len(b) == 2:
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_append(_ADV_TYPE_UUID16_COMPLETE, b)
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elif len(b) == 4:
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_append(_ADV_TYPE_UUID32_COMPLETE, b)
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elif len(b) == 16:
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_append(_ADV_TYPE_UUID128_COMPLETE, b)
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# See org.bluetooth.characteristic.gap.appearance.xml
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_append(_ADV_TYPE_APPEARANCE, struct.pack('<h', appearance))
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@ -29,7 +29,7 @@ class BLETemperature:
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self._ble.irq(handler=self._irq)
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((self._handle,),) = self._ble.gatts_register_services((_ENV_SENSE_SERVICE,))
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self._connections = set()
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self._payload = advertising_payload(name=name, services=[0x181A], appearance=_ADV_APPEARANCE_GENERIC_THERMOMETER)
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self._payload = advertising_payload(name=name, services=[_ENV_SENSE_UUID], appearance=_ADV_APPEARANCE_GENERIC_THERMOMETER)
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self._advertise()
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def _irq(self, event, data):
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@ -27,6 +27,7 @@ class BLEUART:
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self._connections = set()
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self._rx_buffer = bytearray()
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self._handler = None
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# Optionally add services=[_UART_UUID], but this is likely to make the payload too large.
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self._payload = advertising_payload(name=name, appearance=_ADV_APPEARANCE_GENERIC_COMPUTER)
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self._advertise()
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