The technical indicators of attenuators include: operating frequency band, attenuation, power capacity, return loss, etc.(1) Operating frequency bandThe operating frequency band of an attenuator refer...
Recently, I have been overwhelmed by the task of selecting topics for CES 2013. I have to play the game of leaking secrets. Yesterday, I visited a Chinese PC manufacturer. Just when I was about to sol...
Circuit diagram and PCB layout of Dr. Dot's micro quadcopter circuit diagram: 1. Main control part of Dr. Dot's micro quadcopter circuit diagram: 1) STM32 minimum system 2) Sensor I2C interface, 3) 2....
Peer-to-peer (P2P) technology is a hot topic in the field of international computer network technology. It is praised by Fortune magazine as one of the four new technologies that will change the futur...
When LPC17XX LWIP bare metal transplantation starts running, ARP ICMP UDP and SNMP are all connected and run normally for a while, but then the Ethernet is disconnected. I wonder if anyone has encount...
[font=Arial][size=3][color=#000000]Hello everyone, I am a beginner in analog electronics. Recently, I need to learn to design an amplifier project by myself. I am quite confused, so I came to the foru...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[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]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]