Hello! I am an overseas headhunter. I currently have an overseas project and need a GSM/UMTS RF network optimization engineer with more than 10 years of experience and good English (able to communicat...
Hard Rock Technology STM32 Motor Control : https://training.eeworld.com.cn/course/5521This course is a motor control course based on STM32 explained by Hard Rock Technology, including DC brushed motor...
The VIH/VIL of TTL level is generally 2V/0.8V, and VOH/VOL is generally 2.4V/0.4V, which is the same for both 3.3V and 5V TTL; the VIH/VIL of CMOS is generally 70%VCC/30%VCC, and VOH/VOL is generally ...
The laptop was connected to the Internet via WiFi. Suddenly, an exclamation mark appeared. 360 diagnosis, can't repair. Found that there is a problem with the network, this repair failed. The mobile p...
[i=s]This post was last edited by zhaojun_xf on 2014-8-31 07:55[/i] The book [size=5][color=red]ARM Embedded Application Architecture Design Example Based on LPC1700[/color][/size] has been published ...
Date: 2007-1-1 Source: Today's Electronics Another year has passed in the blink of an eye. The editorial department has briefly sorted out some of the major events that happened in the industry in 20...
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[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]
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[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]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[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]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[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]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[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]
RF/Wirelessly
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