:loveliness: Hehe... The following is my summary of hand soldering of small components... I hope it can help the soldering level of forum friends to a higher level... But I won't share this with ordin...
I did an experiment to control the output of a stepper motor with PWM. I set an overflow step number [b][u]int step_number_over; // overflow step number [/u][/b] and the step number calculated by real...
[b][/b][color=#FF0000]First of all, thank you for reading my post, I wish you good luck in your work! [/color] [b]My environment: [/b]S3C2440+WinCE5.0+4.2BSP [b]My question: [/b]How to write a 4GB SDH...
[i=s] This post was last edited by fdsf on 2018-12-21 13:06 [/i] [color=#000][backcolor=rgb(232, 232, 232)][size=15px]The 2.8-inch TFTLCD screen not only cannot display, but also the backlight cannot ...
I have been looking for functions for file operations in the micropython documentation, but there is nothing in the official documentation. It only mentions the paths: /flash and /sd, corresponding to...
When calculating if in the first picture, is the voltage divided by the parallel resistance or the series resistance? Just like in my picture, it is divided by the series resistance. The second pictur...
In electronic measurement technology, frequency measurement is one of the most basic measurements. The commonly used frequency measurement method and period measurement method have great limitation...[Details]
introduction
Taking care of babies is very tiring because they wake up and sleep frequently, and activities such as feeding and changing clothes will take up a lot of adults' time and energy. ...[Details]
introduction
Mobile phones, MP3 players, hard disk players, digital cameras, PDAs and other devices are all controlled by navigation keys. Currently, the more popular navigation key contro...[Details]
introduction
Controller Area Network (CAN) is a bus standard proposed by Bosch of Germany to solve the information communication between automotive electronic control units. With its excel...[Details]
1. What is fading?
In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]
Global IP Solutions (GIPS), a leading provider of high-quality IP multimedia processing solutions, announced that GIPS has enabled Voice over Internet Protocol (VoIP) capabilities for Apple's iPhon...[Details]
Abstract This paper
introduces a wireless radio frequency transmission chip nRF9E5 based on 8051 core. The remote control system of flapping-wing micro-aircraft is made by using this chip. Th...[Details]
The microwave multifunctional therapeutic device uses microwave radiation for heating treatment, which can achieve the effects of sterilization and blood circulation. Using microwaves to directly c...[Details]
Abstract: By controlling the supply voltage of the radio frequency (RF) power amplifier (PA) in a CDMA/WCDMA cellular phone, the PA efficiency can be improved, heat generation can be reduced, and t...[Details]
Battery system architecture
For many years, nickel-cadmium batteries and later nickel-metal hydride battery technology have dominated the market. Lithium batteries have only entered ...[Details]
Nowadays, video conferencing has become a situation where multiple manufacturers supply various high-definition products. The technology of high-definition products has greatly matured, the cost h...[Details]
Development Status
Looking at the development of security monitoring technology: from the first generation of analog monitoring, to the second generation of digital monitoring, and then up...[Details]
The growing global interest in green power has added new variables to the design of power supplies and power adapters. Designers must not only traditionally consider the design specifications requi...[Details]
In the past one or two years, driven by Apple's iPhone, the smartphone market has expanded rapidly. An important feature of portable products such as smartphones is that they have more and more fun...[Details]
Security prevention is mainly based on prevention, which means taking precautions in advance for behaviors and events that may cause harm, timely discovering and handling, and collecting evidence a...[Details]