树莓派与PC端在局域网内运用python实现即时通讯
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 #importnecessarypackage importsocket importtime importsys HOST_IP="192.168.31.151"#树莓派的IP地址 HOST_PORT=8888 print("Startingsocket:TCP...") #1.createsocketobject:socket=socket.socket(family,type) socket_tcp=socket.socket(socket.AF_INET,socket.SOCK_STREAM) print("TCPserverlisten@%s:%d!"%(HOST_IP,HOST_PORT)) host_addr=(HOST_IP,HOST_PORT) #2.bindsockettoaddr:socket.bind(address) socket_tcp.bind(host_addr) #3.listenconnectionrequest:socket.listen(backlog) socket_tcp.listen(1) #4.waiteforclient:connection,address=socket.accept() socket_con,(client_ip,client_port)=socket_tcp.accept() print("Connectionacceptedfrom%s."%client_ip) socket_con.send("WelcometoRPiTCPserver!") print("Receivingpackage...") ###主循环 whileTrue: try: data=socket_con.recv(512) iflen(data)>0: print("Received:%s"%data) socket_con.send(data) time.sleep(1) continue exceptException: socket_tcp.close() sys.exit(1)
computer.py
importsocket importtime importsys SERVER_IP="192.168.31.151"#树莓派的IP地址 SERVER_PORT=8888 print("Startingsocket:TCP...") server_addr=(SERVER_IP,SERVER_PORT) socket_tcp=socket.socket(socket.AF_INET,socket.SOCK_STREAM) whileTrue: try: print("Connectingtoserver@%s:%d..."%(SERVER_IP,SERVER_PORT)) socket_tcp.connect(server_addr) break exceptException: print("Can'tconnecttoserver,tryitlatter!") time.sleep(1) continue print("Pleaseinput:") whileTrue: try: data=socket_tcp.recv(512) iflen(data)>0: print("Received:%s"%data) command=raw_input() socket_tcp.send(command) time.sleep(1) continue exceptException: socket_tcp.close() socket_tcp=None sys.exit(1)
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