37 lines
1007 B
Python
37 lines
1007 B
Python
import serial
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import time
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# 配置串口（请根据实际情况修改设备名）
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PORT = '/dev/ttyS0' # 或 '/dev/ttyUSB0'
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BAUDRATE = 115200
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try:
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# 打开串口
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ser = serial.Serial(PORT, BAUDRATE, timeout=1)
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print(f"✅ 已打开串口 {PORT}")
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# 发送数据
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data_to_send = b'123456\n'
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# 持续读取数据（注意：此时串口是打开的！）
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print("📥 开始监听串口数据...")
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while True:
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ser.write(data_to_send)
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print("📤 已发送数据")
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try:
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line = ser.readline()
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if line:
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print("接收到:", line.hex())
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except serial.SerialException as e:
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print("❌ 串口异常:", e)
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break
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time.sleep(1)
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except serial.SerialException as e:
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print(f"❌ 无法打开串口 {PORT}: {e}")
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except KeyboardInterrupt:
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print("\n🛑 用户中断")
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finally:
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if 'ser' in locals() and ser.is_open:
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ser.close()
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print("🔌 串口已关闭") |