It's another electronics competition year. I was training at school and made a module using the VCA822 chip. It got hot at first when it was powered on, but I solved this problem later. However, the i...
[align=center][size=5][b][font=宋体]Recommendation of Classic Materials on Software Testing (VI)[/font][font=Times New Roman]--[/font][color=rgb(0, 0, 0)][backcolor=rgb(237, 235, 235)][font=微软雅黑]Softwar...
This is a simple 51 MCU problem, it's a bit puzzling, can you help me figure out where the problem is? The MCU is from Saiyuan, it was working fine some time ago, but it has this problem again today, ...
Does anyone have a design to send GPS positioning data by SMS using a single-chip microcomputer to control a GSM module, or something similar? Urgent need. I would be grateful if you have any. Please ...
[size=4]1. The power limiter automatically limits its output power: [/size] [size=4] [/size] [size=4] A voltage feedforward network and a current waveform setting network are connected between the ind...
Can someone give me a PCB diagram of a PWM controlled DC motor? It would be best if I could give a schematic diagram and a program schematic diagram or something?...
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[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]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[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]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]
Cars equipped with xenon headlights are already common on the road. Whether they are standard equipment on high-end cars or embellishments on modified cars, xenon lamps are gradually becoming a sym...[Details]
1. The composition and structure of mobile phone lithium battery
Mobile phone lithium batteries are mainly composed of plastic shell upper and lower covers, lithium battery cells, protection c...[Details]
Analog electronics
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