swaits
9a13c4b951
All examples now catch serial.SerialException instead of crashing with a traceback. This covers port contention (multiple processes), device disconnect, and USB errors. meshcore_rx.py already had this.
37 lines
865 B
Python
Executable File
37 lines
865 B
Python
Executable File
#!/usr/bin/env python3
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"""Transmit a single LoRa packet.
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Usage:
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uv run examples/simple_tx.py [PORT] [MESSAGE]
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"""
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# /// script
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# requires-python = ">=3.10"
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# dependencies = ["cobs", "pyserial"]
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# ///
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import serial
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import sys
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sys.path.insert(0, __import__("pathlib").Path(__file__).parent.as_posix())
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import donglora as dl # noqa: E402
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port = None
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message = "Hello from DongLoRa!"
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args = sys.argv[1:]
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if args and not args[0].startswith("/dev"):
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message = " ".join(args)
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elif args:
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port = args[0]
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if len(args) > 1:
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message = " ".join(args[1:])
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try:
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ser = dl.connect(port)
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print(dl.send(ser, "SetConfig", config=dl.DEFAULT_CONFIG))
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print(dl.send(ser, "Transmit", payload=message.encode()))
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print(f"Sent: {message!r}")
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except serial.SerialException as e:
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print(f"\nSerial error: {e}", file=sys.stderr)
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sys.exit(1)
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