China's mobile phone users reached 426 million, and the number of text messages sent increased by 45.8% 2006-7-25According to the 2006 first half year communication industry statistics report released...
The remaining time of the STEP 7 timer has BI and BCD outputs, one is INT data, the other is BCD code. If converted to INT data, when the timer setting time is less than 100S, the remaining time displ...
[i=s]This post was last edited by paulhyde on 2014-9-15 03:38[/i] [size=14.0pt]0~500MHZ[/size][font=宋体][size=14.0pt]Digital sweeper, stepping[/size][/font][size=14.0pt]5KHZ,[/size][font=宋体][size=14.0p...
[font=微软雅黑][size=3]Friends who like SoC, have you been looking forward to getting an evaluation board to try it out? EEworld understands you! :victory:[/size][/font][font=微软雅黑][size=3] [/size][/font] ...
I used the power supply on the lower left, and found that the small servo on the top can rotate normally. It doesn't work with the big servo. The voltage drop is serious. I checked it on the oscillosc...
I am a sophomore student. Today is my first time to participate in the national competition. I would like to ask what software I need to prepare for the national competition? We use the 51 series stc1...
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
Synchronous buck designs are becoming increasingly difficult, and the selection of suitable ICs is becoming quite narrow. This Design Idea combines a current-mode PWM IC used in a flyback regulator...[Details]
Automotive electronics are in a noisy environment
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so automotive electronics must have excellent electromagnetic compatibility (EMC) performance. The most important part of automotive elec...[Details]
O Introduction
For people who are in the wild, a question that they are more concerned about is the altitude of the place where they are. However, there are very few such products on the mar...[Details]
Motor vehicle garage management control system
1. Usage Requirements
1. There are 70 parking spaces in the garage. Each parking space has a door at the entrance. There should be a control...[Details]
At present, in the electrified section, the train power supply system is a passenger car power supply device installed in the locomotive (trailer) that steps down and rectifies the 25 kV single-phase ...[Details]
The control system of red light therapy device based on STM32 is introduced. STM32 has the advantages of high cost performance, rich peripherals, high integration, low power consumption, and convenien...[Details]
Motor vehicle garage management and control system
I. Usage requirements
1. There are 70 parking spaces in the garage, and each parking space is equipped with a door at the entrance. Ther...[Details]
The visual system of the autonomous vacuum cleaner robot mainly uses ultrasonic sensors, infrared sensors, collision sensors and CMOS image sensors. The autonomous vacuum cleaner robot mainly uses ...[Details]
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