Question

这个库有问题： https://code.google.com/p/python-xbee/

xbee.wait_read_frame()函数没有超时。

我正在测试信号的所有串口，但如果我不能尝试，那就没办法了。

Python是否有可能在不编辑库的情况下升级此功能？或者图书馆内有小变化？

ports_available = []

for port in range(0,20):
    try:
        ser = serial.Serial(port, 9600)
        ports_available.append(port)
        ser.close()
    except:
        pass

print(ports_available)

for port in ports_available:
        ser = serial.Serial(port, 9600)
        bee = ZigBee(ser)
        bee.at(command=b"MY")
        print(bee.wait_read_frame()) #<----------
        ser.close()

Answer 1

看起来您需要使用documentation第3页中描述的异步模式。除非数据帧包含接收它的串行端口的参数，否则它可能会很棘手。如果它没有，您将无法将数据连接到接收它的端口。

import serial
import time
from xbee import XBee

serial_port = serial.Serial('/dev/ttyUSB0', 9600)

def print_data(data): """
    This method is called whenever data is received
    from the associated XBee device. Its first and
    only argument is the data contained within the
    frame.
    """
    print data

xbee = XBee(serial_port, callback=print_data)

while True:
    try:
        time.sleep(0.001)
    except KeyboardInterrupt:
        break

xbee.halt()
serial_port.close()

XBee API Python库中缺少超时

1 个答案: