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Ensure the device has an UART service

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This commit is contained in:
Daniele Tricoli 2023-03-08 06:49:41 +01:00
parent 1bc2efdeba
commit e444bd3ee8
1 changed files with 11 additions and 6 deletions
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17
src/freakble/ble.py
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@ -50,12 +50,17 @@ class Client:
raise RuntimeError(f"device with address {self.address} not found")
self._client = BleakClient(device, disconnected_callback=self.on_disconnect)
await self._client.__aenter__()
for service in self._client.services:
for char in service.characteristics:
if "write" in char.properties:
self.uart_tx_char = char
elif "notify" in char.properties:
self.uart_rx_char = char
uart_service = self._client.services.get_service(NORDIC_UART_SERVICE_UUID)
if uart_service is None:
raise RuntimeError(
f"device with address {self.address} doesn't have an UART service"
)
for char in uart_service.characteristics:
if "write" in char.properties:
self.uart_tx_char = char
elif "notify" in char.properties:
self.uart_rx_char = char
async def disconnect(self):
if self._client is not None: