Thomas Ales [M S E]
72 lines
1.8 KiB
Python
Executable File
72 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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Simple serial terminal for manual Helios laser testing.
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Allows sending raw commands and viewing responses.
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"""
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import serial
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import sys
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from threading import Thread
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import time
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def read_from_port(ser):
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"""Read data from serial port and display it."""
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while True:
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try:
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if ser.in_waiting:
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data = ser.read(ser.in_waiting)
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print(f"\n[RX] {data.decode('ascii', errors='replace')}", end='')
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sys.stdout.flush()
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except:
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break
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time.sleep(0.01)
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def main():
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"""Run interactive serial terminal."""
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port = "/dev/ttyUSB2"
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if len(sys.argv) > 1:
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port = sys.argv[1]
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try:
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ser = serial.Serial(
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port=port,
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baudrate=9600,
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bytesize=serial.EIGHTBITS,
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parity=serial.PARITY_NONE,
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stopbits=serial.STOPBITS_ONE,
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timeout=0.1
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)
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print(f"Connected to {port} at 9600 baud")
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print("Type commands and press Enter. Type 'quit' to exit.\n")
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# Start reader thread
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reader_thread = Thread(target=read_from_port, args=(ser,), daemon=True)
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reader_thread.start()
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while True:
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try:
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user_input = input("[TX] ")
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if user_input.lower() == 'quit':
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break
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# Send command with carriage return
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command = user_input + '\r'
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ser.write(command.encode('ascii'))
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time.sleep(0.1)
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except KeyboardInterrupt:
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break
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except Exception as e:
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print(f"Error: {e}")
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ser.close()
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print("\nDisconnected")
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except Exception as e:
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print(f"Failed to open {port}: {e}")
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sys.exit(1)
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if __name__ == "__main__":
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main()
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