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Make a nicer error when the robot isn't found.

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This commit is contained in:
Danny Staple
2023-01-19 23:12:21 +00:00
parent a509fa540c
commit fa67d9e21a
6 changed files with 33 additions and 21 deletions
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ch-13/2.3-bluetooth/find_devices.py
+1 -2
View File
@@ -9,8 +9,7 @@ async def run():
print([device.name for device in devices]) print([device.name for device in devices])
matching_devices = [device for device in devices if device.name==ble_name] matching_devices = [device for device in devices if device.name==ble_name]
if len(matching_devices) == 0: if len(matching_devices) == 0:
print(f"Could not find robot at {ble_name}") raise RuntimeError("Could not find robot")
return
ble_device_info = matching_devices[0] ble_device_info = matching_devices[0]
print(f"Found robot {ble_device_info.name}...") print(f"Found robot {ble_device_info.name}...")
ch-13/2.3-bluetooth/robot_ble_connection.py
+4 -3
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@@ -22,9 +22,10 @@ class BleConnection:
devices = await bleak.BleakScanner.discover( devices = await bleak.BleakScanner.discover(
service_uuids=[self.ble_uuid] service_uuids=[self.ble_uuid]
) )
print(f"Found {len(devices)} devices") matching_devices = [device for device in devices if device.name==self.ble_name]
print([device.name for device in devices]) if len(matching_devices) == 0:
ble_device_info = [device for device in devices if device.name==self.ble_name][0] raise RuntimeError("Could not find robot")
ble_device_info = matching_devices[0]
print(f"Connecting to {ble_device_info.name}...") print(f"Connecting to {ble_device_info.name}...")
self.ble_client = bleak.BleakClient(ble_device_info.address) self.ble_client = bleak.BleakClient(ble_device_info.address)
await self.ble_client.connect() await self.ble_client.connect()
ch-13/3.1-displaying-a-pose/robot_ble_connection.py
+7 -4
View File
@@ -19,10 +19,13 @@ class BleConnection:
async def connect(self): async def connect(self):
print("Scanning for devices...") print("Scanning for devices...")
devices = await bleak.BleakScanner.discover(service_uuids=[self.ble_uuid]) devices = await bleak.BleakScanner.discover(
print(f"Found {len(devices)} devices") service_uuids=[self.ble_uuid]
print([device.name for device in devices]) )
ble_device_info = [device for device in devices if device.name==self.ble_name][0] matching_devices = [device for device in devices if device.name==self.ble_name]
if len(matching_devices) == 0:
raise RuntimeError("Could not find robot")
ble_device_info = matching_devices[0]
print(f"Connecting to {ble_device_info.name}...") print(f"Connecting to {ble_device_info.name}...")
self.ble_client = bleak.BleakClient(ble_device_info.address) self.ble_client = bleak.BleakClient(ble_device_info.address)
await self.ble_client.connect() await self.ble_client.connect()
ch-13/3.2-collision-avoidance/robot_ble_connection.py
+7 -4
View File
@@ -19,10 +19,13 @@ class BleConnection:
async def connect(self): async def connect(self):
print("Scanning for devices...") print("Scanning for devices...")
devices = await bleak.BleakScanner.discover(service_uuids=[self.ble_uuid]) devices = await bleak.BleakScanner.discover(
print(f"Found {len(devices)} devices") service_uuids=[self.ble_uuid]
print([device.name for device in devices]) )
ble_device_info = [device for device in devices if device.name==self.ble_name][0] matching_devices = [device for device in devices if device.name==self.ble_name]
if len(matching_devices) == 0:
raise RuntimeError("Could not find robot")
ble_device_info = matching_devices[0]
print(f"Connecting to {ble_device_info.name}...") print(f"Connecting to {ble_device_info.name}...")
self.ble_client = bleak.BleakClient(ble_device_info.address) self.ble_client = bleak.BleakClient(ble_device_info.address)
await self.ble_client.connect() await self.ble_client.connect()
ch-13/3.3-moving-with-encoders/robot_ble_connection.py
+7 -4
View File
@@ -19,10 +19,13 @@ class BleConnection:
async def connect(self): async def connect(self):
print("Scanning for devices...") print("Scanning for devices...")
devices = await bleak.BleakScanner.discover(service_uuids=[self.ble_uuid]) devices = await bleak.BleakScanner.discover(
print(f"Found {len(devices)} devices") service_uuids=[self.ble_uuid]
print([device.name for device in devices]) )
ble_device_info = [device for device in devices if device.name==self.ble_name][0] matching_devices = [device for device in devices if device.name==self.ble_name]
if len(matching_devices) == 0:
raise RuntimeError("Could not find robot")
ble_device_info = matching_devices[0]
print(f"Connecting to {ble_device_info.name}...") print(f"Connecting to {ble_device_info.name}...")
self.ble_client = bleak.BleakClient(ble_device_info.address) self.ble_client = bleak.BleakClient(ble_device_info.address)
await self.ble_client.connect() await self.ble_client.connect()
ch-13/4.1-generating-weights/robot_ble_connection.py
+7 -4
View File
@@ -19,10 +19,13 @@ class BleConnection:
async def connect(self): async def connect(self):
print("Scanning for devices...") print("Scanning for devices...")
devices = await bleak.BleakScanner.discover(service_uuids=[self.ble_uuid]) devices = await bleak.BleakScanner.discover(
print(f"Found {len(devices)} devices") service_uuids=[self.ble_uuid]
print([device.name for device in devices]) )
ble_device_info = [device for device in devices if device.name==self.ble_name][0] matching_devices = [device for device in devices if device.name==self.ble_name]
if len(matching_devices) == 0:
raise RuntimeError("Could not find robot")
ble_device_info = matching_devices[0]
print(f"Connecting to {ble_device_info.name}...") print(f"Connecting to {ble_device_info.name}...")
self.ble_client = bleak.BleakClient(ble_device_info.address) self.ble_client = bleak.BleakClient(ble_device_info.address)
await self.ble_client.connect() await self.ble_client.connect()