59 lines
1.6 KiB
Python
Executable File
59 lines
1.6 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Two-dongle demo: one transmits, one receives.
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Usage:
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python examples/ping_pong.py --role tx [PORT]
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python examples/ping_pong.py --role rx [PORT]
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"""
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import argparse
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import sys
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import time
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import serial
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import donglora as dl
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parser = argparse.ArgumentParser(description="DongLoRa ping-pong demo")
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parser.add_argument("--role", choices=["tx", "rx"], required=True)
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parser.add_argument("port", nargs="?", help="Serial port (auto-detect if omitted)")
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args = parser.parse_args()
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try:
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ser = dl.connect(args.port)
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print(dl.send(ser, "SetConfig", config=dl.DEFAULT_CONFIG))
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if args.role == "tx":
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print("Transmitting every 2 seconds (Ctrl+C to stop)...\n")
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seq = 0
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while True:
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msg = f"ping #{seq}"
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resp = dl.send(ser, "Transmit", payload=msg.encode())
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print(f" TX: {msg!r} → {resp['type']}")
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seq += 1
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time.sleep(2)
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else:
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print(dl.send(ser, "StartRx"))
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print("Receiving (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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text = p.decode("utf-8", errors="replace")
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print(f" RX: {text!r} RSSI:{resp['rssi']}dBm SNR:{resp['snr']}dB")
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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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