For a 700mH large coil (similar to the coil of a contactor), the Rs is 270Ω when tested with a benchtop LCR bridge, but only 77Ω when tested directly with a multimeter resistance range. Therefore, how...
A software that uses a computer to simulate the functions of ESP32.Main features:No need to upload to real hardware for testing
Testing two or more ESP32s simultaneously
Integration capabilities for c...
Blockchain Technology and Applications : https://training.eeworld.com.cn/course/67741Peking University's open course "Blockchain Technology and Applications" is taught by Teacher Xiao Zhen, which main...
【Arduino】168 Sensor Series Experiments (214) --- 8x32-bit full-color WS2812B screen
https://en.eeworld.com/bbs/thread-1222021-1-1.htmlI can't see the nearly ten replies today. Can you please help me c...
New documentation for Bluetooth has been added to MicroPython, which is ready for initial use.http://docs.micropython.org/en/latest/library/bluetooth.html...
The prospects of
LED lights
As the problem of greenhouse gas emissions from the earth becomes increasingly serious and approaches the critical point of the earth's self-regulation, count...[Details]
Abstract: In photovoltaic grid-connected power generation systems, a wide input range switching power supply is usually used to power low-voltage microcontrollers, IGBT drivers and LCDs. This paper...[Details]
In recent years, with the continuous improvement of 32-bit chip manufacturing technology and the continuous reduction of manufacturing costs, the domestic 32-bit MCU market has also begun to boom. Mo...[Details]
Recently, Lei Jun, the founder of Xiaomi, published an article titled "Lei Jun: Why does Xiaomi make home appliances?", which was widely discussed in the industry. The article begins with today's X...[Details]
On May 4, Chengdu and Huawei, Huawei and BOE signed a cooperation agreement, which will further expand the scope of tripartite cooperation, deepen industrial collaboration, and work together to help ...[Details]
Noise is a common problem that occurs everywhere. Almost everyone who works with circuits has to deal with it at some point, either by finding its source and fixing it, or by reducing its effect on m...[Details]
There are many brands of UPS products in the market , with uneven product quality and chaotic competition. Especially for mid- and low-end products, end users do not have a deep understanding of UP...[Details]
We have disassembled the Lenovo Legion Gaming Phone Pro. Next, we will analyze what is special about this phone from the perspective of components. Lenovo Legion Gaming Phone Pro configuration at a...[Details]
Quectel, the world's leading provider of Internet of Things and Internet of Vehicles solutions, today announced the official release of its next-generation cellular vehicle-to-everything (C-V2X) modu...[Details]
1. What is a frequency converter rectifier (converter)?
The rectifier (converter) is one of the three main parts in the main power supply of the inverter. The input AC power passes through the...[Details]
The model code of the 89 series microcontroller consists of three parts, which are prefix, model and suffix. Their format is as follows: AT89C;××× ×××× Among them: AT is the prefix; 89C×××× is the mo...[Details]
Based on the principle of electromagnetic induction, an electromagnetic launch model was designed and manufactured. The model uses a photoelectric sensor to trigger a three-stage coil to accelerate th...[Details]
what is it? The EVSE Development Platform for AM62x is a commercial Level 2 charging station with selected hardware and software to help hardware designers and software developers get to productio...[Details]
The following points should be clarified when purchasing and ordering ordinary pressure gauges: 1. Appearance name: It should be clear whether it is ordinary pressure gauge, oxygen pressure gauge, el...[Details]
On November 2, the 300,000-kilowatt new energy storage project with a total investment of 2.395 billion yuan by Shouhang Energy Group was started and laid the foundation stone in Changji National High...[Details]