50 lines
1.1 KiB
Python
50 lines
1.1 KiB
Python
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"""Quick AT command terminal - minicom but less hostile.
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Usage:
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python at_terminal.py [port]
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Default port: /dev/ttyUSB2 (SIM7600 AT command interface)
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"""
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import sys
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import serial
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import threading
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PORT = sys.argv[1] if len(sys.argv) > 1 else "/dev/ttyUSB2"
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BAUD = 115200
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def reader(ser):
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"""Background thread: print everything the modem sends."""
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while True:
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try:
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data = ser.read(ser.in_waiting or 1)
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if data:
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sys.stdout.write(data.decode("utf-8", errors="replace"))
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sys.stdout.flush()
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except Exception:
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break
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def main():
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print(f"Opening {PORT} @ {BAUD} baud")
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print("Type AT commands. Ctrl+C to quit.\n")
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ser = serial.Serial(PORT, BAUD, timeout=0.1)
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t = threading.Thread(target=reader, args=(ser,), daemon=True)
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t.start()
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try:
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while True:
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line = input()
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ser.write((line + "\r\n").encode())
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except (KeyboardInterrupt, EOFError):
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print("\nBye.")
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finally:
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ser.close()
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if __name__ == "__main__":
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main()
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