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!
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)
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持w3xue。