The current program uses a counter to record the number of pulses. I need to update the total number of pulses in the past minute every second. The method I use is to define an array of length 60 to s...
Seeing that many people couldn't get in, I was wondering why they could get in smoothly every time? :Laugh:
I learned a little bit about this board last year, and when I saw the expert’s video, I deci...
The microcontroller read-write USB flash drive module pb375 has now been upgraded to pb375a. Detailed information: [url=https://home.eeworld.com.cn/my/space.php?uid=91727&do=blog&id=22086]https://home...
[p=22, null, left][color=rgb(51, 51, 51)][font=Arial, Helvetica, sans-serif, 宋体]The battery we are most concerned about is the [b]lithium-ion battery[/b], because our [color=#FF3399][u]mobile phones[/...
1 Silver glue falls off. Process problem. Use ultrasonic cleaning for the bracket, dehumidify at 80 degrees for 4 hours, and then start the operation. Or use solder paste for welding (there are requir...
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[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]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
The most important components of new energy electric vehicles are power batteries, electric motors and energy conversion control systems. The power battery must achieve high performance such as fas...[Details]
introduction
Belt drive is a common transmission device used in industrial production. Its commonly used speed detection device is a photoelectric encoder installed at the rotating end of th...[Details]
High specific energy lithium/thionyl chloride (Li/SOCl2) batteries are widely used in multi-functional intelligent meters (such as smart meters, water meters, etc.) as real-time clocks and memory b...[Details]
CAN (Controller Area Network) is a serial communication network that effectively supports distributed control and real-time control. It has the advantages of high reliability, low cost, flexible confi...[Details]
1. Preparation of electrodes
(1) Raw material pretreatment
Before the experiment, the positive electrode material LiFePO4, acetylene black and adhesive were vacuum dried at 120°C for 12 h...[Details]
In the field of power supply controllers, digital power supplies face two major challenges. The first is flexibility, which is actually what engineers expect from digital power supplies. They alway...[Details]
1. Experimental tasks
A digital voltmeter is designed using the single-chip microcomputer AT89S51 and ADC0809. It can measure DC voltage values between 0 and 5V and display four digits, but ...[Details]
Fast charging of batteries for electric vehicles is an important topic in the research and development of electric vehicles. Although many practical charging devices or commercial chargers have the...[Details]
Liquid crystal display devices have these incomparable advantages, and with the continuous development of liquid crystal display technology and the continuous reduction of product prices in recent yea...[Details]
The voltage comparator is used to shape the demodulated signal and convert it into a standard rectangular wave. The high-speed, high-precision voltage comparator LM319 produced by Philips is selected....[Details]
Lithium-ion batteries, which have the advantages of high voltage, high capacity, long cycle life and good safety performance, have broad application prospects in portable electronic devices, electr...[Details]