在局域网使用Python实现树莓派和PC通信

电脑和树莓派在同一局域网内，先在电脑和树莓派创建python运行环境，然后在树莓派中用python运行rpi.py；在电脑上运行computer.py；电脑上输入字符即可在树莓派上即时显示！

废话不多讲，直接上码

rpi.py

#coding:utf-8

  #import necessary package

  import socket

  import time

  import sys





  HOST_IP = "192.168.31.151" #树莓派的IP地址

  HOST_PORT = 8888

  print("Starting socket: TCP...")

  #1.create socket object:socket=socket.socket(family,type)

  socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

  print("TCP server listen @ %s:%d!" %(HOST_IP, HOST_PORT) )

  host_addr = (HOST_IP, HOST_PORT)

  #2.bind socket to addr:socket.bind(address)

  socket_tcp.bind(host_addr)

  #3.listen connection request:socket.listen(backlog)

  socket_tcp.listen(1)

  #4.waite for client:connection,address=socket.accept()

  socket_con, (client_ip, client_port) = socket_tcp.accept()

  print("Connection accepted from %s." %client_ip)

  socket_con.send("Welcome to RPi TCP server!")



  print("Receiving package...")



  ###主循环

  while True:

  try:

  data=socket_con.recv(512)

  if len(data)>0:

   print("Received:%s"%data)

   socket_con.send(data)

   time.sleep(1)

   continue

  except Exception:

   socket_tcp.close()

   sys.exit(1)

computer.py

import socket

  import time

  import sys



  SERVER_IP = "192.168.31.151" #树莓派的IP地址

  SERVER_PORT = 8888



  print("Starting socket: TCP...")

  server_addr = (SERVER_IP, SERVER_PORT)

  socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)



  while True:

   try:

    print("Connecting to server @ %s:%d..." %(SERVER_IP, SERVER_PORT))

    socket_tcp.connect(server_addr)

    break

   except Exception:

    print("Can't connect to server,try it latter!")

    time.sleep(1)

    continue

  print("Please input:")

  while True:

   try:

    data = socket_tcp.recv(512)

    if len(data)>0:

     print("Received: %s" % data)

     command=raw_input()

     socket_tcp.send(command)

     time.sleep(1)

     continue

   except Exception:

    socket_tcp.close()

    socket_tcp=None

    sys.exit(1)