python3 pySerial TypeError:不支持unicode字符串，请编码为字节: [英] python3 pySerial TypeError: unicode strings are not supported, please encode to bytes:

问题描述

在Python 3中，我导入了pySerial库，以便可以通过串行命令与Arduino Uno通信.
它在Python 2.7中效果很好，但是在Python 3中，我一直遇到一个错误，它说这是

In Python 3 I imported the pySerial library so I could communicate with my Arduino Uno by serial commands.
It worked very well in Python 2.7 but in Python 3 I keep running into a error it says this

TypeError:不支持unicode字符串，请编码为字节:'allon'

TypeError: unicode strings are not supported, please encode to bytes: 'allon'

在Python 2.7中，我唯一做的不同是使用raw_input，但我不知道Python 3中正在发生什么.这是我的代码

In Python 2.7 the only thing I did differently is use raw_input but I don't know what is happening in Python 3. Here is my code

import serial, time
import tkinter
import os

def serialcmdw():
    os.system('clear')
    serialcmd = input("serial command: ")
    ser.write (serialcmd)

serialcmdw()

ser = serial.Serial()
os.system('clear')
ser.port = "/dev/cu.usbmodem4321"
ser.baudrate = 9600
ser.open()
time.sleep(1)
serialcmdw()

推荐答案

将要写入串行的数据编码，在这种情况下，将"serialcmd"编码为字节.请尝试以下操作:

Encode your data which you are writing to serial,in your case "serialcmd" to bytes.try the following :

ser.write(serialcmd.encode())

ser.write(serialcmd.encode())

这篇关于python3 pySerial TypeError:不支持unicode字符串，请编码为字节:的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！