swaits
84be92f263
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.
43 lines
1.1 KiB
Python
Executable File
43 lines
1.1 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Receive LoRa packets and print them.
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Usage:
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uv run examples/simple_rx.py [PORT]
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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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try:
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ser = dl.connect(sys.argv[1] if len(sys.argv) > 1 else None)
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print(dl.send(ser, "SetConfig", config=dl.DEFAULT_CONFIG))
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print(dl.send(ser, "StartRx"))
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print("\nListening (Ctrl+C to stop)...\n")
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ser.timeout = 1
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while True:
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data = dl.read_frame(ser)
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if data is None:
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continue
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resp = dl.decode_response(data)
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if resp["type"] == "RxPacket":
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p = resp["payload"]
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print(f" RSSI:{resp['rssi']:4d}dBm SNR:{resp['snr']:3d}dB len:{len(p):3d} {p.hex()}")
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except KeyboardInterrupt:
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try:
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dl.send(ser, "StopRx")
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except Exception:
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pass
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print("\nDone.")
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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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