将数据从arduino导入到python

Question

I am trying to import data from my arduino to python so that I can then use it in my program but I cannot find how to send the data without importing b'\\r\\n' as well. This is an example of what I am currently importing:

b'197,2302,50,198,\\r\\n'

# The numbers in the middle are data from four distance sensors

Answer 1

I have asked this question a few days ago. Maybe this thread helps you: pyserial communication with arduino (for motor-control)

Just add this lines to read from serial and delete \\r\\n from your code:

get = ser.readline()[:-2]

Answer 2

You didn't show how to send the data from arduino side, so I will answer dealing with the data you got; strip trailing space using bytes.rstrip :

>>> b'197,2302,50,198,\r\n'.rstrip()
b'197,2302,50,198,'

Answer 3

Your Arduino is probably sending the data with b'\\r\\n' in it.

You can get the numbers out with this regular expression like this:

>>> import re
>>> re.findall('[0-9]+', "b'197,2302,50,198,\r\n'")
['197', '2302', '50', '198']