{"id":1165901,"date":"2025-01-15T15:25:59","date_gmt":"2025-01-15T07:25:59","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1165901.html"},"modified":"2025-01-15T15:26:02","modified_gmt":"2025-01-15T07:26:02","slug":"python%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e7%94%b5%e8%84%91%e4%b8%b2%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1165901.html","title":{"rendered":"python\u5982\u4f55\u4f7f\u7528\u7535\u8111\u4e32\u53e3"},"content":{"rendered":"

\"python\u5982\u4f55\u4f7f\u7528\u7535\u8111\u4e32\u53e3\"<\/p>\n

Python\u4f7f\u7528\u7535\u8111\u4e32\u53e3\u53ef\u4ee5\u901a\u8fc7PySerial\u5e93\u3001serial\u6a21\u5757\u3001\u8bfb\u53d6\u6570\u636e\u3001\u5199\u5165\u6570\u636e<\/strong>\u7b49\u65b9\u5f0f\u5b9e\u73b0\u3002PySerial\u5e93<\/strong>\u662f\u4e00\u4e2a\u8de8\u5e73\u53f0\u7684\u4e32\u884c\u901a\u4fe1\u5e93\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5728Python\u4e2d\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\u3002\u4e0b\u9762\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528PySerial\u5e93\u6765\u64cd\u4f5c\u7535\u8111\u7684\u4e32\u53e3\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u5b89\u88c5PySerial\u5e93<\/h3>\n<\/p>\n

\u9996\u5148\uff0c\u9700\u8981\u5b89\u88c5PySerial\u5e93\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u901a\u8fc7pip\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n<\/p>\n

pip install pyserial<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e8c\u3001\u5bfc\u5165serial\u6a21\u5757<\/h3>\n<\/p>\n
\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u5728Python\u4ee3\u7801\u4e2d\u5bfc\u5165serial\u6a21\u5757\uff1a<\/p>\n<\/p>\n
import serial<\/p>\n
import time<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e09\u3001\u6253\u5f00\u4e32\u53e3<\/h3>\n<\/p>\n
\u6253\u5f00\u4e32\u53e3\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u4e32\u53e3\u53f7\u548c\u6ce2\u7279\u7387\u3002\u4e32\u53e3\u53f7\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u586b\u5199\uff0c\u4f8b\u5982\u5728Windows\u4e0a\u5e38\u89c1\u7684\u662fCOM1\u3001COM2\u7b49\uff0c\u5728Linux\u4e0a\u5219\u662f\/dev\/ttyS0\u3001\/dev\/ttyUSB0\u7b49\u3002<\/p>\n<\/p>\n
ser = serial.Serial('COM1', 9600, timeout=1)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u8bfb\u53d6\u6570\u636e<\/h3>\n<\/p>\n
\u8bfb\u53d6\u6570\u636e\u53ef\u4ee5\u4f7f\u7528read<\/code>\u6216readline<\/code>\u65b9\u6cd5\u3002read<\/code>\u65b9\u6cd5\u8bfb\u53d6\u6307\u5b9a\u957f\u5ea6\u7684\u6570\u636e\uff0creadline<\/code>\u65b9\u6cd5\u8bfb\u53d6\u4e00\u884c\u6570\u636e\u3002<\/p>\n<\/p>\n
# \u8bfb\u53d610\u4e2a\u5b57\u8282\u7684\u6570\u636e<\/p>\n
data = ser.read(10)<\/p>\n
print(data)<\/p>\n
\u8bfb\u53d6\u4e00\u884c\u6570\u636e<\/strong><\/h2>\n
line = ser.readline()<\/p>\n
print(line)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u5199\u5165\u6570\u636e<\/h3>\n<\/p>\n
\u5199\u5165\u6570\u636e\u53ef\u4ee5\u4f7f\u7528write<\/code>\u65b9\u6cd5\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5199\u5165\u7684\u6570\u636e\u5fc5\u987b\u662f\u5b57\u8282\u7c7b\u578b\u3002<\/p>\n<\/p>\n
# \u5199\u5165\u6570\u636e<\/p>\n
ser.write(b'Hello, Serial Port')<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u516d\u3001\u5173\u95ed\u4e32\u53e3<\/h3>\n<\/p>\n
\u5728\u5b8c\u6210\u4e32\u53e3\u901a\u4fe1\u540e\uff0c\u9700\u8981\u5173\u95ed\u4e32\u53e3\u3002<\/p>\n<\/p>\n
ser.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e03\u3001\u5b8c\u6574\u793a\u4f8b<\/h3>\n<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u5b8c\u6574\u7684\u793a\u4f8b\uff0c\u6f14\u793a\u4e86\u5982\u4f55\u901a\u8fc7PySerial\u5e93\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\uff1a<\/p>\n<\/p>\n
import serial<\/p>\n
import time<\/p>\n
\u6253\u5f00\u4e32\u53e3<\/strong><\/h2>\n
ser = serial.Serial('COM1', 9600, timeout=1)<\/p>\n
\u7b49\u5f85\u4e32\u53e3\u7a33\u5b9a<\/strong><\/h2>\n
time.sleep(2)<\/p>\n
\u53d1\u9001\u6570\u636e<\/strong><\/h2>\n
ser.write(b'Hello, Serial Port')<\/p>\n
\u8bfb\u53d6\u6570\u636e<\/strong><\/h2>\n
while True:<\/p>\n
    if ser.in_wAI<\/a>ting:<\/p>\n
        data = ser.readline()<\/p>\n
        print(data)<\/p>\n
        break<\/p>\n
\u5173\u95ed\u4e32\u53e3<\/strong><\/h2>\n
ser.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u516b\u3001\u5904\u7406\u4e32\u53e3\u5f02\u5e38<\/h3>\n<\/p>\n
\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u4e00\u4e9b\u4e32\u53e3\u5f02\u5e38\u60c5\u51b5\uff0c\u4f8b\u5982\u4e32\u53e3\u88ab\u5360\u7528\u3001\u6570\u636e\u8bfb\u53d6\u8d85\u65f6\u7b49\u3002\u53ef\u4ee5\u901a\u8fc7\u5f02\u5e38\u5904\u7406\u673a\u5236\u6765\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\uff0c\u5e76\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\u3002<\/p>\n<\/p>\n
try:<\/p>\n
    ser = serial.Serial('COM1', 9600, timeout=1)<\/p>\n
except serial.SerialException as e:<\/p>\n
    print(f"Error opening serial port: {e}")<\/p>\n
    exit()<\/p>\n
try:<\/p>\n
    ser.write(b'Hello, Serial Port')<\/p>\n
    data = ser.readline()<\/p>\n
    print(data)<\/p>\n
except serial.SerialTimeoutException:<\/p>\n
    print("Read timeout")<\/p>\n
except Exception as e:<\/p>\n
    print(f"Unexpected error: {e}")<\/p>\n
finally:<\/p>\n
    ser.close()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e5d\u3001\u8bbe\u7f6e\u4e32\u53e3\u53c2\u6570<\/h3>\n<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e32\u53e3\u7684\u53c2\u6570\u6765\u6ee1\u8db3\u4e0d\u540c\u7684\u901a\u4fe1\u9700\u6c42\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\u7b49\u3002<\/p>\n<\/p>\n
ser = serial.Serial(<\/p>\n
    port='COM1',<\/p>\n
    baudrate=9600,<\/p>\n
    bytesize=serial.EIGHTBITS,<\/p>\n
    parity=serial.PARITY_NONE,<\/p>\n
    stopbits=serial.STOPBITS_ONE,<\/p>\n
    timeout=1<\/p>\n
)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5341\u3001\u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668<\/h3>\n<\/p>\n
\u4e3a\u4e86\u786e\u4fdd\u4e32\u53e3\u5728\u4f7f\u7528\u540e\u80fd\u591f\u6b63\u786e\u5173\u95ed\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\uff08with\u8bed\u53e5\uff09\u6765\u7ba1\u7406\u4e32\u53e3\u3002<\/p>\n<\/p>\n
with serial.Serial('COM1', 9600, timeout=1) as ser:<\/p>\n
    ser.write(b'Hello, Serial Port')<\/p>\n
    data = ser.readline()<\/p>\n
    print(data)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5341\u4e00\u3001\u8de8\u5e73\u53f0\u4f7f\u7528\u4e32\u53e3<\/h3>\n<\/p>\n
PySerial\u5e93\u662f\u8de8\u5e73\u53f0\u7684\uff0c\u53ef\u4ee5\u5728Windows\u3001Linux\u548cMacOS\u4e0a\u4f7f\u7528\u3002\u5728\u4e0d\u540c\u5e73\u53f0\u4e0a\uff0c\u4e32\u53e3\u7684\u547d\u540d\u65b9\u5f0f\u6709\u6240\u4e0d\u540c\uff1a<\/p>\n<\/p>\n
    \n
  • Windows<\/strong>\uff1a\u4e32\u53e3\u547d\u540d\u4e3aCOM1\u3001COM2\u7b49\u3002<\/li>\n
  • Linux<\/strong>\uff1a\u4e32\u53e3\u547d\u540d\u4e3a\/dev\/ttyS0\u3001\/dev\/ttyUSB0\u7b49\u3002<\/li>\n
  • MacOS<\/strong>\uff1a\u4e32\u53e3\u547d\u540d\u4e3a\/dev\/tty.usbserial\u7b49\u3002<\/li>\n<\/ul>\n
    \u5341\u4e8c\u3001\u8c03\u8bd5\u4e32\u53e3\u901a\u4fe1<\/h3>\n<\/p>\n
    \u5728\u8c03\u8bd5\u4e32\u53e3\u901a\u4fe1\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u4e32\u53e3\u8c03\u8bd5\u5de5\u5177\uff0c\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
      \n
    • Serial Port Monitor<\/strong>\uff1a\u7528\u4e8e\u76d1\u89c6\u548c\u5206\u6790\u4e32\u53e3\u901a\u4fe1\u7684\u6570\u636e\u6d41\u3002<\/li>\n
    • PuTTY<\/strong>\uff1a\u652f\u6301\u4e32\u53e3\u901a\u4fe1\u7684\u7ec8\u7aef\u4eff\u771f\u5668\u3002<\/li>\n
    • Tera Term<\/strong>\uff1a\u652f\u6301\u4e32\u53e3\u901a\u4fe1\u7684\u7ec8\u7aef\u4eff\u771f\u5668\u3002<\/li>\n<\/ul>\n
      \u5341\u4e09\u3001\u4f7f\u7528\u4e32\u53e3\u901a\u4fe1\u534f\u8bae<\/h3>\n<\/p>\n
      \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4e32\u53e3\u901a\u4fe1\u5e38\u5e38\u9700\u8981\u9075\u5faa\u67d0\u79cd\u901a\u4fe1\u534f\u8bae\u3002\u4f8b\u5982\uff0cModbus\u534f\u8bae\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u3002\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u7b2c\u4e09\u65b9\u5e93\u6765\u5b9e\u73b0\u8fd9\u4e9b\u534f\u8bae\uff0c\u4f8b\u5982pymodbus\u5e93\u3002<\/p>\n<\/p>\n
      from pymodbus.client.sync import ModbusSerialClient<\/p>\n
      client = ModbusSerialClient(method='rtu', port='COM1', baudrate=9600, timeout=1)<\/p>\n
      client.connect()<\/p>\n
      \u8bfb\u53d6\u4fdd\u6301\u5bc4\u5b58\u5668<\/strong><\/h2>\n
      response = client.read_holding_registers(address=1, count=1, unit=1)<\/p>\n
      if response.isError():<\/p>\n
          print("Error reading registers")<\/p>\n
      else:<\/p>\n
          print(response.registers)<\/p>\n
      client.close()<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5341\u56db\u3001\u4f7f\u7528\u7ebf\u7a0b\u5904\u7406\u4e32\u53e3\u901a\u4fe1<\/h3>\n<\/p>\n
      \u5728\u4e00\u4e9b\u5e94\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u540c\u65f6\u5904\u7406\u591a\u9879\u4efb\u52a1\uff0c\u4f8b\u5982\u8bfb\u53d6\u4e32\u53e3\u6570\u636e\u5e76\u8fdb\u884c\u5176\u4ed6\u5904\u7406\u3002\u53ef\u4ee5\u4f7f\u7528\u7ebf\u7a0b\u6765\u5b9e\u73b0\u5e76\u53d1\u5904\u7406\u3002<\/p>\n<\/p>\n
      import threading<\/p>\n
      def read_serial(ser):<\/p>\n
          while True:<\/p>\n
              if ser.in_waiting:<\/p>\n
                  data = ser.readline()<\/p>\n
                  print(data)<\/p>\n
      ser = serial.Serial('COM1', 9600, timeout=1)<\/p>\n
      thread = threading.Thread(target=read_serial, args=(ser,))<\/p>\n
      thread.start()<\/p>\n
      \u4e3b\u7ebf\u7a0b\u53ef\u4ee5\u8fdb\u884c\u5176\u4ed6\u5904\u7406<\/strong><\/h2>\n
      for i in range(10):<\/p>\n
          print(f"Main thread: {i}")<\/p>\n
          time.sleep(1)<\/p>\n
      ser.close()<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5341\u4e94\u3001\u4f7f\u7528\u961f\u5217\u5904\u7406\u4e32\u53e3\u6570\u636e<\/h3>\n<\/p>\n
      \u4e3a\u4e86\u907f\u514d\u5728\u8bfb\u53d6\u4e32\u53e3\u6570\u636e\u65f6\u963b\u585e\u4e3b\u7ebf\u7a0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u961f\u5217\u6765\u5b58\u50a8\u8bfb\u53d6\u5230\u7684\u6570\u636e\uff0c\u7136\u540e\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u5904\u7406\u8fd9\u4e9b\u6570\u636e\u3002<\/p>\n<\/p>\n
      import queue<\/p>\n
      def read_serial(ser, data_queue):<\/p>\n
          while True:<\/p>\n
              if ser.in_waiting:<\/p>\n
                  data = ser.readline()<\/p>\n
                  data_queue.put(data)<\/p>\n
      ser = serial.Serial('COM1', 9600, timeout=1)<\/p>\n
      data_queue = queue.Queue()<\/p>\n
      thread = threading.Thread(target=read_serial, args=(ser, data_queue))<\/p>\n
      thread.start()<\/p>\n
      \u4e3b\u7ebf\u7a0b\u5904\u7406\u961f\u5217\u4e2d\u7684\u6570\u636e<\/strong><\/h2>\n
      while True:<\/p>\n
          if not data_queue.empty():<\/p>\n
              data = data_queue.get()<\/p>\n
              print(data)<\/p>\n
      ser.close()<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5341\u516d\u3001\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u5904\u7406\u4e32\u53e3\u6570\u636e<\/h3>\n<\/p>\n
      \u53ef\u4ee5\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u6765\u5904\u7406\u4e32\u53e3\u6570\u636e\uff0c\u5f53\u6709\u6570\u636e\u5230\u8fbe\u65f6\u89e6\u53d1\u56de\u8c03\u51fd\u6570\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/p>\n
      def data_callback(data):<\/p>\n
          print(data)<\/p>\n
      def read_serial(ser, callback):<\/p>\n
          while True:<\/p>\n
              if ser.in_waiting:<\/p>\n
                  data = ser.readline()<\/p>\n
                  callback(data)<\/p>\n
      ser = serial.Serial('COM1', 9600, timeout=1)<\/p>\n
      thread = threading.Thread(target=read_serial, args=(ser, data_callback))<\/p>\n
      thread.start()<\/p>\n
      \u4e3b\u7ebf\u7a0b\u53ef\u4ee5\u8fdb\u884c\u5176\u4ed6\u5904\u7406<\/strong><\/h2>\n
      for i in range(10):<\/p>\n
          print(f"Main thread: {i}")<\/p>\n
          time.sleep(1)<\/p>\n
      ser.close()<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5341\u4e03\u3001\u4f7f\u7528\u4e8b\u4ef6\u9a71\u52a8\u7684\u4e32\u53e3\u901a\u4fe1<\/h3>\n<\/p>\n
      \u53ef\u4ee5\u4f7f\u7528\u4e8b\u4ef6\u9a71\u52a8\u7684\u65b9\u5f0f\u6765\u5904\u7406\u4e32\u53e3\u901a\u4fe1\uff0c\u4f8b\u5982\u901a\u8fc7select\u6a21\u5757\u6765\u76d1\u63a7\u4e32\u53e3\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
      import select<\/p>\n
      ser = serial.Serial('COM1', 9600, timeout=1)<\/p>\n
      fd = ser.fileno()<\/p>\n
      while True:<\/p>\n
          rlist, _, _ = select.select([fd], [], [], 1)<\/p>\n
          if rlist:<\/p>\n
              data = ser.readline()<\/p>\n
              print(data)<\/p>\n
      ser.close()<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5341\u516b\u3001\u4f7f\u7528\u5f02\u6b65IO\u5904\u7406\u4e32\u53e3\u901a\u4fe1<\/h3>\n<\/p>\n
      \u53ef\u4ee5\u4f7f\u7528\u5f02\u6b65IO\u6765\u5904\u7406\u4e32\u53e3\u901a\u4fe1\uff0c\u4f8b\u5982\u901a\u8fc7asyncio\u548caioserial\u5e93\u6765\u5b9e\u73b0\u5f02\u6b65\u4e32\u53e3\u901a\u4fe1\u3002<\/p>\n<\/p>\n
      import asyncio<\/p>\n
      from aiohttp import web<\/p>\n
      from aiohttp import ClientSession<\/p>\n
      async def read_serial(ser):<\/p>\n
          while True:<\/p>\n
              data = await ser.read_async()<\/p>\n
              print(data)<\/p>\n
      async def main():<\/p>\n
          ser = aioserial.AioSerial(port='COM1', baudrate=9600, timeout=1)<\/p>\n
          await read_serial(ser)<\/p>\n
      asyncio.run(main())<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5341\u4e5d\u3001\u4f7f\u7528CRC\u6821\u9a8c\u4e32\u53e3\u6570\u636e<\/h3>\n<\/p>\n
      \u5728\u4e00\u4e9b\u5e94\u7528\u4e2d\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\uff0c\u9700\u8981\u5bf9\u4e32\u53e3\u6570\u636e\u8fdb\u884cCRC\u6821\u9a8c\u3002\u53ef\u4ee5\u4f7f\u7528crcmod\u5e93\u6765\u8ba1\u7b97CRC\u6821\u9a8c\u7801\u3002<\/p>\n<\/p>\n
      import crcmod<\/p>\n
      def compute_crc(data):<\/p>\n
          crc16 = crcmod.predefined.mkPredefinedCrcFun('modbus')<\/p>\n
          crc = crc16(data)<\/p>\n
          return crc<\/p>\n
      data = b'Hello, Serial Port'<\/p>\n
      crc = compute_crc(data)<\/p>\n
      print(f"CRC: {crc:04X}")<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u4e8c\u5341\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
      \u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u6211\u4eec\u8be6\u7ec6\u8bb2\u89e3\u4e86Python\u5982\u4f55\u4f7f\u7528\u7535\u8111\u4e32\u53e3\uff0c\u5305\u62ec\u5b89\u88c5PySerial\u5e93\u3001\u6253\u5f00\u4e32\u53e3\u3001\u8bfb\u53d6\u6570\u636e\u3001\u5199\u5165\u6570\u636e\u3001\u5173\u95ed\u4e32\u53e3\u3001\u5904\u7406\u5f02\u5e38\u3001\u8bbe\u7f6e\u4e32\u53e3\u53c2\u6570\u3001\u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u3001\u8de8\u5e73\u53f0\u4f7f\u7528\u3001\u8c03\u8bd5\u4e32\u53e3\u901a\u4fe1\u3001\u4f7f\u7528\u4e32\u53e3\u901a\u4fe1\u534f\u8bae\u3001\u4f7f\u7528\u7ebf\u7a0b\u5904\u7406\u3001\u4f7f\u7528\u961f\u5217\u5904\u7406\u3001\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u3001\u4e8b\u4ef6\u9a71\u52a8\u3001\u5f02\u6b65IO\u3001CRC\u6821\u9a8c\u7b49\u65b9\u9762\u7684\u5185\u5bb9\u3002\u901a\u8fc7\u8fd9\u4e9b\u77e5\u8bc6\u548c\u6280\u5de7\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u5728Python\u4e2d\u8fdb\u884c\u4e32\u53e3\u901a\u4fe1\uff0c\u6ee1\u8db3\u4e0d\u540c\u7684\u5e94\u7528\u9700\u6c42\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n
      \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
       \u5982\u4f55\u5728Python\u4e2d\u8bc6\u522b\u548c\u5217\u51fa\u53ef\u7528\u7684\u4e32\u53e3\u8bbe\u5907\uff1f<\/strong>
      \u8981\u5728Python\u4e2d\u8bc6\u522b\u548c\u5217\u51fa\u53ef\u7528\u7684\u4e32\u53e3\u8bbe\u5907\uff0c\u53ef\u4ee5\u4f7f\u7528pyserial<\/code>\u5e93\u3002\u5b89\u88c5\u8be5\u5e93\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7serial.tools.list_ports<\/code>\u6a21\u5757\u83b7\u53d6\u7cfb\u7edf\u4e2d\u6240\u6709\u4e32\u53e3\u7684\u4fe1\u606f\u3002\u8fd0\u884c\u4ee5\u4e0b\u4ee3\u7801\uff0c\u53ef\u4ee5\u770b\u5230\u8fde\u63a5\u7684\u6240\u6709\u4e32\u53e3\uff1a  <\/p>\n
      import serial.tools.list_ports\n\nports = serial.tools.list_ports.comports()\nfor port in ports:\n    print(port.device)\n<\/code><\/pre>\n
      \u8fd9\u6837\uff0c\u4f60\u5c31\u53ef\u4ee5\u8f7b\u677e\u67e5\u770b\u5230\u6240\u6709\u53ef\u7528\u7684\u4e32\u53e3\u8bbe\u5907\u3002<\/p>\n
      \u5728Python\u4e2d\u5982\u4f55\u6253\u5f00\u548c\u914d\u7f6e\u4e32\u53e3\uff1f<\/strong>
      \u5728\u6210\u529f\u8bc6\u522b\u4e32\u53e3\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528serial.Serial<\/code>\u7c7b\u6765\u6253\u5f00\u548c\u914d\u7f6e\u4e32\u53e3\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u57fa\u672c\u793a\u4f8b\uff1a  <\/p>\n
      import serial\n\nser = serial.Serial('COM3', baudrate=9600, timeout=1)  # \u66ff\u6362\u4e3a\u4f60\u7684\u4e32\u53e3\u53f7\nser.bytesize = serial.EIGHTBITS\nser.parity = serial.PARITY_NONE\nser.stopbits = serial.STOPBITS_ONE\n<\/code><\/pre>\n
      \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u786e\u4fdd\u5c06'COM3'<\/code>\u66ff\u6362\u4e3a\u4f60\u7684\u8bbe\u5907\u5b9e\u9645\u4f7f\u7528\u7684\u4e32\u53e3\u53f7\uff0c\u5e76\u6839\u636e\u9700\u6c42\u8c03\u6574\u6ce2\u7279\u7387\u548c\u5176\u4ed6\u53c2\u6570\u3002<\/p>\n
      \u5982\u4f55\u5728Python\u4e2d\u53d1\u9001\u548c\u63a5\u6536\u4e32\u53e3\u6570\u636e\uff1f<\/strong>
      \u901a\u8fc7pyserial<\/code>\u5e93\uff0c\u4f60\u53ef\u4ee5\u8f7b\u677e\u5730\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002\u53d1\u9001\u6570\u636e\u53ef\u4ee5\u4f7f\u7528write()<\/code>\u65b9\u6cd5\uff0c\u800c\u63a5\u6536\u6570\u636e\u53ef\u4ee5\u4f7f\u7528read()<\/code>\u6216readline()<\/code>\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a  <\/p>\n
      # \u53d1\u9001\u6570\u636e\nser.write(b'Hello, Serial Port!')\n\n# \u63a5\u6536\u6570\u636e\ndata = ser.readline()  # \u8bfb\u53d6\u4e00\u884c\u6570\u636e\nprint(data.decode('utf-8'))  # \u5c06\u5b57\u8282\u89e3\u7801\u4e3a\u5b57\u7b26\u4e32\n<\/code><\/pre>\n
      \u786e\u4fdd\u5728\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u65f6\uff0c\u4f7f\u7528\u5408\u9002\u7684\u7f16\u7801\u683c\u5f0f\uff0c\u4ee5\u907f\u514d\u51fa\u73b0\u4e71\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4f7f\u7528\u7535\u8111\u4e32\u53e3\u53ef\u4ee5\u901a\u8fc7PySerial\u5e93\u3001serial\u6a21\u5757\u3001\u8bfb\u53d6\u6570\u636e\u3001\u5199\u5165\u6570\u636e\u7b49\u65b9\u5f0f\u5b9e\u73b0\u3002PySer […]","protected":false},"author":3,"featured_media":1165908,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1165901"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1165901"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1165901\/revisions"}],"predecessor-version":[{"id":1165909,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1165901\/revisions\/1165909"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1165908"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1165901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1165901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1165901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}