I'm begging for a voice module that can write Chinese characters through the host computer, and the voice module can dial out Chinese characters after processing, that is, a voice playback module with...
MCU model: STC89LE516RD+. PFP package. Phenomenon: Occasionally, it does not work after power on. After that, I turned off all the power and turned it on again, but it still does not work. I turned of...
Today, I used FPGA to read and write internal ROM. After carefully studying the ROM timing, I found that: for ROMs without output latches, after giving the address, valid data is retrieved after a del...
I recently made a board. When I connected it to the emulator, the emulator light turned red. It uses the STM32F103CB chip. I don't know what the problem is. Please help me check it out.103cbdl.jpg(56 ...
PCB drilling is a process of PCB plate making, and it is also a very important step. It is mainly to punch holes in the board. For routing needs, a via is needed. For structural needs, a hole is drill...
On August 23rd, Geely's subsidiary, Jiyao Tongxing, announced it has the industry's largest advanced production capacity for tandao
batteries
, with eight production bases across China. Jiy...[Details]
When you are happily watching NBA or football, your wife asks you to turn off the lights in the bedroom. Would you be depressed? Of course, unless you are not afraid of your wife.
Now you are ...[Details]
Multi-touch mobile phone
Multi-touch is a system that can respond to multiple touches on the screen at the same time. Multi-touch phones are divided into capacitive and resistive types. Capaci...[Details]
introduction
Sonar imaging is of great significance in marine resource development and defense. Its long range, intuitive display of the observed area, and target identification make it widely...[Details]
1. Fault phenomenon and cause analysis
1. During the operation of the equipment, the expansion sleeve is subjected to a large torque, and the mating surfaces of the shaft and the sleeve move...[Details]
In the field of communications power supplies, AC/DC rectifier power supplies are called primary power supplies or basic power supplies, while DC/DC converters are called secondary power supplies. ...[Details]
The fracture mechanism is stress concentration, which typically occurs at the capacitor lead pins or pad connection points, as shown in the figure. Under vibration, the capacitor lead pins and pad ...[Details]
01. Introduction
As in-vehicle networks migrate from the CAN
bus
to
Ethernet
, traditional millisecond-level synchronization accuracy can no longer meet the requirements of mul...[Details]
Batteries are a core component of new energy vehicles, accounting for over 40% of the total cost. This is also the area where automakers are most willing to tamper with costs. Since 2021, domestic ...[Details]
introduction
With the development of the information superhighway and the internet, broadcast television has become increasingly widespread worldwide. Television information has emerged in var...[Details]
For the average person, an electricity meter is a monthly bill. For beginners, it's a collection of components and parts. For experienced meter engineers, however, it's a complex and complex proces...[Details]
01 Overview
The HJM315A/B is a domestically produced programmable three-phase motor driver specifically designed for small and medium-sized motor gyroscopes. It consists of an MCU, LDO, three-...[Details]
August 19, 2025 – Mouser Electronics, a leading New Product Introduction (NPI) distributor offering an extensive portfolio of semiconductors and electronic components, announced that
it will be...[Details]
1. When the variable frequency motor stops, the heat source is gone, and the radiation and heat conduction functions of the heat dissipation components themselves are sufficient to ensure that the ...[Details]
China's tightening control over rare earth elements (REEs) is reshaping global supply chains and triggering ripple effects across high-tech industries, according to a detailed analysis released by ...[Details]
Embedded System
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