Implementation of serial port receiving data thread under qt

1. Implementation of serial communication class Create a class QSerialCommThrd that implements serial communication. It inherits from QObject. Yes, it is QObject and not QThread. Define a QSerialPort pointer within the class to read and write the serial port. The specific definition of the class is as follows: #ifndef QSERIALCOMMTHRD_H #define QSERIALCOMMTHRD_H #include <QObject> #include […]

Serialization and deserialization of PowerShell objects

PowerShell / Operation and Maintenance Serialization and deserialization of PowerShell objects Author: Li Juncai (jcLee95): Email:[email protected] This article address: Directory 1. Overview 2. Serialization: Convert objects into strings 3. Deserialization: Restore object from string Appendix: Command and option parameter analysis F.1 ConvertTo-Json command F.2 ConvertFrom-Json command Example Example 1: Convert DateTime object to […]

stm32 configures the serial port interrupt and sets the communication protocol to control the Hall DC motor

Configure cubemx generation project Add serial port interrupt code and communication protocol Attention issues first step Configure download interface Configure crystal oscillator interface Open usart1, configure it for asynchronous communication, set the basic parameters to default, and check the interrupt option below. Then configure the clock according to the development board you have, you can […]

python self (2) slice dictionary traverse delete add modify query definition function function return value scope serialization exception error urllib uses one type and six methods to download video audio picture

Slice # # Slice # s = ‘hello word’ # # The subscript index is 0 # print(s[0]) #h # # Left closed and right open (left starts with the subscript, right is several index values), for example, 4 index values starting from 0 # print(s[0:4]) #hell # # Change the starting position of the […]

Python serial port assistant function (0/4) Code to implement serial port UI interface # -*- coding: utf-8 -*- importsys from PyQt5.QtCore import * from PyQt5.QtGui import * from import comports from widget_serial import * from PyQt5.QtGui import QFont from data_check import * ”’ main tool ”’ debug=0 class SerialWidget(QWidget): _instance = None # Class variable to store the singleton […]

[Linux] Process priority, environment variables, process address space

Article directory 1. Process priority basic concept View system processes PRI and NI PRI vs NI Command to modify process priority Other concepts 2. Environment variables basic concept View environment variables method Common environment variables Test PATH Commands related to environment variables How environment variables are organized How to get environment variables through code Get […]

STM32 (6) library function serial port sending and receiving examples (interruption)

STM series article directory Article directory STM series article directory Preface 1. Serial port configuration steps 2. Actual writing 1. Code part ①Redirect fputc function ②GPIO Foreword This article uses library functions to write a simple serial port transceiver, using the STM32F103RCT6 development board (partly from Zhengdian Atom). STM32F103RCT6 can provide up to 5 serial […]