The LED fan which is very popular in the market has a length of 42 cm and 224 lamp beads. The solution includes: the schematic diagram and layout of 2 boards and their BOM STM source code. The host co...
Mobile audio solutions Originally, it used a 50 *20*20 box with two 15W built-in5- inch speaker , powered by 4 2000MA /H lithium batteries , Main circuit : Stereo amplifier circuit , lithium battery c...
Switching power supply engineering design and practice from prototype to mass production
https://download.eeworld.com.cn/detail/sigma/623006Selection of Typical Design Examples of Switching Power Supp...
Hello everyone, I want to use STM32W108 to make a wireless communication solution for ZIGBEE, and I have two questions. (1) Is this new product available for sale? How much is it? Or where can I apply...
Chapter 53 Serial Port IAP Experiment IAP, or In Application Programming, is a function that many microcontrollers support, and STM32 is no exception. In the previous FLASH simulation EEPROM experimen...
I had some free time in the afternoon, so I stared at the oscilloscope. The probe of the oscilloscope I bought two years ago was broken at some point. Today I took out a spare probe, thinking that I m...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
Portable power applications are broad and varied. Products range from wireless sensor nodes with average power consumption of only a few microwatts to in-vehicle medical or data acquisition systems...[Details]
Introduction
my country's rapid economic growth is mainly due to the development of manufacturing and the acceleration of urbanization. However, urbanization cannot be achieved at the expense ...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
1. Basic principles of organic/polymer solar cells
The basic principle of organic/polymer solar cells is to use the photovoltaic effect generated by light incident on the heterojunction of sem...[Details]