On 16/12/2013 14:31, sem...@gmail.com wrote:
i am new to python and programming all together.i wrote a program to watch a serial port and look for a command. then send a tcp packet. all works great but it takes my processor load to about %25. not sure if there is a way to make this more efficient. import serial import socket HOST = '127.0.0.1' # The remote host PORT = 5250 # The same port as used by the server s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((HOST, PORT)) ##vvvvvvvvvvvv ser = serial.Serial( port='COM10',\ baudrate=9600,\ parity=serial.PARITY_NONE,\ stopbits=serial.STOPBITS_ONE,\ bytesize=serial.EIGHTBITS,\ timeout=0) print("connected to: " + ser.portstr) #this will store the line line = [] c = 0 while True: for c in ser.readline(): line.append(c) if c == '1': s.send('CG 1-21 ADD 1 reserveisoff 1 \r\n') data = s.recv(1024) print 'Received', repr(data) print("one") line = [] break if c == '2': s.send('PLAY 1-1 AMB.mp4 \r\n') data = s.recv(1024) print 'Received', repr(data) s.send('LOADBG 1-1 EMPTY MIX 30 AUTO \r\n') data = s.recv(1024) print 'Received', repr(data) print("two") line = [] break s.close() ser.close()
I think the problem might be that you've set the timeout to 0, so it doesn't block if there's no data available. -- https://mail.python.org/mailman/listinfo/python-list
