I soldered the PCB yesterday, and at first the voltage couldn't be changed. Today I changed a USB cable and finally I could change the voltage. Here is the effect picture:USB and CH221 in PCBChange th...
The previous article tested the effect of the working current of the control end on the operation of the module. This article tests the response speed of the relay under different working currents. Fi...
[i=s]This post was last edited by qwqwqw2088 on 2022-6-13 09:18[/i]Share an old document, it is still inspiring to read it carefullyBefore electricity was known, people used candles for lighting. This...
[size=3][font=微软雅黑, 宋体] Whether discussing with peers or reading posts on forums, the opinions about the ADC of TMS320X2407 (10-bit)/2812 (12-bit) are basically negative. I wonder if those who hold th...
bq2060 Specification Features: *. Can accurately measure the charging of nickel-cadmium, nickel-manganese, lithium-ion and lead-acid batteries *. Support SBS V1.1 version *. Support two-line SMBus V1....
[Burn SD card] First follow the tutorial: "Fang Starlight Single Board Computer Quick Start Guide" 1650968079267675.pdf (eeworld.com.cn) , prepare an SD card, I found the original Raspberry Pi card 16...
1. Design concept:
The focus is on solving the pain points that the employment of small and medium-sized factories is becoming increasingly difficult (unwilling to enter small and medi...[Details]
Switching power supply circuits are easy or difficult, with different powers and output voltages. When repairing, you need to grasp the core essentials, be fully familiar with the basic structure and...[Details]
There are two methods of Labview serial communication, one is to use visa (virtual instrument software framework), and the other is to call activeX control.
The first method (VISA) program is shown i...[Details]
The rapid uptake of home batteries in Germany has brought the European residential storage market to an economic tipping point, according to a report from energy consultancy Wood Macken...[Details]
1. Customer Background This client is a company that develops and produces lubricant products. Testing of lubricant performance during the R&D phase and quality inspections after product production a...[Details]
platform Development board: tq2440 Kernel: Linux-4.9 u-boot：u-boot-2015.04 Overview The LCD driver has been ported before. Now we will continue to port the touch screen driver and then port tslib....[Details]
On March 16, Ningbo Zhongda Lide Intelligent Transmission Co., Ltd. (hereinafter referred to as "Zhongda Lide") issued the "Announcement on Overseas Investment to Establish a Wholly-Owned Subsidi...[Details]
1 Working principles and characteristics of several flow meters 1.1 Ordinary high-pressure dry water meter. High-pressure dry water meters for water injection wells are basically angle-connected, and...[Details]
A few days ago, your WeChat and Weibo were flooded with messages from the top student leader and the guilty little girl, right? The top student girl born in the 90s was very upset. She wanted to str...[Details]
summary
Commercial buildings and stadiums require high-quality cellular coverage, but the environment poses challenges to signal reception. This article details a comprehensive dis...[Details]
The agenda is announced, MATLAB EXPO 2021 China User Conference is about to set sail! Spanning Shanghai and Beijing, the event will include more than 30 technical presentations and more than 20 pro...[Details]
Toyota’s official website released the 2019 Mirai fuel cell car. Auto People Reference provides a detailed analysis for everyone. The new generation of Mirai has a unique appearance, excellent accele...[Details]
What is a single-chip microcomputer: 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 integ...[Details]
This Marx generator has a total of six stages, each of which is composed of a 0.002uF 20kV capacitor and two 1m ohm resistors. On the left is a neon transformer (9kV 30mA). The high-voltage AC genera...[Details]
At present, the development of mobile phones has become the common focus of the global electronics industry. In addition to voice and camera functions, the next goal of mobile phones is obviously to i...[Details]
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