You can use inWaiting() to get the amount of bytes available at the input queue. Then you can use read() to read the bytes, something like that: While True: bytesToRead = ser.inWaiting() ser.read(bytesToRead) Why not to use readline() at this case from Docs: Read a line which is terminated with end-of-line (eol) character (\n by … Read more
Using a separate thread is totally unnecessary. Just follow the example below for your infinite while loop instead. I use this technique in my eRCaGuy_PyTerm serial terminal program here (search the code for inWaiting() or in_waiting). Notes: To check your python3 version, run this: python3 –version My output when I first wrote and tested this … Read more
Encode your data which you are writing to serial,in your case “serialcmd” to bytes.try the following : ser.write(serialcmd.encode())
this is something I did and worked out for me so far: import os, pty, serial master, slave = pty.openpty() s_name = os.ttyname(slave) ser = serial.Serial(s_name) # To Write to the device ser.write(‘Your text’) # To read from the device os.read(master,1000) If you create more virtual ports you will have no problems as the different … Read more
There was a talk about using Python with robotics at this years PyConAU called Ah! I see you have the machine that goes ‘BING’! by Dr. Graeme Cross. The only option he recommended for using Python on a microcontroller board was PyMite which I think also goes by the name of Python-On-A-Chip. It has been … Read more
Blog post Serial RS232 connections in Python import time import serial # configure the serial connections (the parameters differs on the device you are connecting to) ser = serial.Serial( port=”/dev/ttyUSB1″, baudrate=9600, parity=serial.PARITY_ODD, stopbits=serial.STOPBITS_TWO, bytesize=serial.SEVENBITS ) ser.isOpen() print ‘Enter your commands below.\r\nInsert “exit” to leave the application.’ input=1 while 1 : # get keyboard input input … Read more
This is the code I use. Successfully tested on Windows 8.1 x64, Windows 10 x64, Mac OS X 10.9.x / 10.10.x / 10.11.x and Ubuntu 14.04 / 14.10 / 15.04 / 15.10 with both Python 2 and Python 3. import sys import glob import serial def serial_ports(): “”” Lists serial port names :raises EnvironmentError: On … Read more