I hope to use esp8266 to display data on the APP. The current situation is that WIFI can establish a connection with the APP, and the serial port data can be received through the computer, but the dat...
[align=left][size=14px]I am making a wearable device. The PCB area on the device is limited, so I want to save as much area as possible. [/size][/align][align=left][size=14px]Both chips on the board n...
When I used Multisim to simulate the op amp circuit before, I found that the op amp output was greater than the power rail. Sometimes I wanted to use the op amp as a comparator for open-loop simulatio...
I am planning to buy a multimeter. Most of the use scenarios require testing voltages of 600-900V (occasionally overvoltages of 1000+), so I have been using Fluke's 15B+. The meters in the company are...
[i=s]This post was last edited by tiankai001 on 2019-2-14 11:35[/i] [font=宋体][size=4] [/size][/font] [font=宋体][size=4][b] [color=#000000]I just saw a post on the forum that introduced the development ...
Digital Integrated Circuit Analysis and Design : https://training.eeworld.com.cn/course/6150Integrated circuits (ICs) are already ubiquitous, and most of them are digital ICs. This course allows you t...
By installation method
Through-type current transformer. A current transformer used to pass through a screen or wall.
Pillar-type current transformer. A current transformer installed on a plane...[Details]
// Calculate the day of the week for any day between 2000 and 2099
// year : 00-99
// month: 01-12
// day : 01-31
unsigned char GetWeekFromDay(unsigned char year,unsigned char month,unsigned char day...[Details]
Recently, Huawei's Habour Investment has acquired a stake in another semiconductor chip company, Nanjing Core Vision Microelectronics Technology Co., Ltd. According to a report compiled by Reuters ba...[Details]
On December 20, Zhejiang Provincial Energy Bureau officially issued the "Technical Guidelines for User-side Electrochemical Energy Storage in Zhejiang Province". The guidelines put forward technica...[Details]
As BOE's key project in 2020, the Setup Completion and Product Offline Ceremony of BOE's B10 ultra-large-size production line was successfully held, which indicates that BOE's large-size LCD pane...[Details]
The debugging of thyristor speed-regulated DC motor is usually based on output current, voltage and speed. That is:
(1) The current depends on the size of the drag load. No matter how the load...[Details]
Tesla, the leading American pure electric vehicle company, is expanding its production capacity around the world, which also requires the support of suppliers. According to two sources, South Korea's...[Details]
The main characteristics of the ozone concentration detector are:
Highly waterproof design, ultra-small size, exquisite design, friendly interface, simple operatio...[Details]
Use PWM to control the LED light to turn on for 3ms and off for 5ms, which means that the period of the PWM wave is 8ms. 1s/8ms=1000ms/8ms=125 times. There are 125 waves in 1s. htm1.Init.Period = 100...[Details]
With the rapid development of power batteries in recent years , there have been considerable breakthroughs in production processes, material technology improvements, and price advantages, so it has...[Details]
LED driver power supplies for general lighting generally use a flyback converter circuit topology based on a PWM controller. Although this solution is simple in structure, it is generally not possible...[Details]
1. Starting method
s3c2440: It can be booted from Nor flash, which is usually 2MB; it can also be booted from Nandflash, which is usually 256MB. We usually put our uboot, kernel and file syste...[Details]
According to foreign media reports, the U.S. Department of Energy's Argonne National Laboratory (DOE Argonne National Laboratory) and the Hong Kong University of Science and Technology (HKUST) have d...[Details]
Special scholarships support future talents to conduct innovative research and promote the rapid development of MEMS manufacturing process technology IMT (Innovative Micro Technology), an independe...[Details]