I use 149 to control 5V LCD. It works when connected directly. But now after using 74LVC4245 to convert 3.3V->5V, it cannot display. What is the reason?...
[color=#222222][font=Tahoma,]Our company develops various types of handheld terminals such as mobile POS and police communication. Due to some problems with the original circuit, we hope to find a har...
This program uses DCO to directly light up the 5110 screen.
The program is relatively simple, but it has to be reset to work properly, which is a bit confusing.
I think adding a pull-up resistor would...
Through this selection guide, you can find corresponding design factors, featured products, product library diagrams and parameter tables, etc. At the same time, this guide also includes devices that ...
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]
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]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
With the continuous advancement of various technologies in the field of measurement and control, the baseband subsystem of general measurement and control equipment has entered the fourth generation o...[Details]
Abstract: Based on the ZigBee parking lot SMS car search system, the location of the vehicle in the parking lot is sent to the owner through SMS, which is convenient for the owner to quickly find ...[Details]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]
Movpower is a portable power bank. It can charge most mobile phones and digital products, such as digital cameras, PDAs, and mobile phones such as Apple, iPod, Blackberry, Motorola, Samsung, Nokia,...[Details]
In recent years, with the increasing maturity of LED technology, LED light sources have been increasingly widely used due to their advantages of using low-voltage power supply, low energy consumpti...[Details]
Based on the actual situation, a remote intelligent anti-theft alarm device for home use, connected to the telephone line, simple to operate, and stable and reliable in operation is designed. When ...[Details]
1. Project Introduction
Beijing Benz-Daimler Chrysler Co., Ltd. is a joint venture between Beijing BAIC Group and Benz-Daimler Chrysler. In October 2005, it started to build a new automobile ...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
Automotive electronics are in a noisy environment
,
so automotive electronics must have excellent electromagnetic compatibility (EMC) performance. The most important part of automotive elec...[Details]
Hall sensor
is a semiconductor element that works by using the Hall effect. Due to the high conversion efficiency, fast response speed, wide dynamic range, good frequency characteristics and ...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
