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?...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[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]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[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]
Distributed Wireless Communication System (DWCS) uses distributed antennas, distributed processing control, joint signal processing and other technologies to improve the system's spectrum efficie...[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]
Analog electronics
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