電腦和樹莓派在同一局域網內，先在電腦和樹莓派創建python運行環境，然后在樹莓派中用python運行rpi.py；在電腦上運行computer.py；電腦上輸入字符即可在樹莓派上即時顯示！
rpi.py
#coding:utf-8
#import necessary package
import socket
import time
import sys
HOST_IP = "192.168.31.151" #樹莓派的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...")
###主循環
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" #樹莓派的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)
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