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连接HA7E的一线装置读取温度
原标题:Read temperature of a 1-wire device connected to a HA7E
  • 时间:2012-05-25 18:28:11
  •  标签:
  • python

我试图通过向一线适配器发出 ascii 命令来读取一线设备的温度。 问题是 ser. write (W0144) 需要返回运输, 但代码因某种原因没有发送 。 命令 ser. read( 32) 返回 A6900000CFD7E328 时返回44( 从 HA7E ascii 命令/ manual 返回) 。 如果我在 Windows XP Heper Text 中输入两个 ser. write 命令( 没有 / r), 它就会正常工作 。

我在这周里呆了一周(是的,我是新来的),我被打断了。我尝试了不同的超时和时间。睡了,但没有欢乐。有人能提出建议吗?

import serial
import time
ser = serial.Serial(port =  COM1 , baudrate=9600, bytesize=8, parity=serial.PARITY_NONE, stopbits=1, timeout=0)
#show the port is open
print ser.isOpen()
ser.write( A69000001CFD7E328 )
time.sleep(1)
ser.write( WO144/r )
ser.read(32)
ser.close()
问题回答

Python的逃生代码需要反弹:

>>> ord( 
 )
13

您正在发送两个字符, 而不是一个 / 和字母 r :

>>> len( 
 )
1
>>> len( /r )
2
>>> list( /r )
[ / ,  r ]




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