1. Hardware
1. PCF8574 Description
I have a pcf8574 IO expansion board, which was originally used to drive 1602. Unfortunately, I found that 1602 was broken and could not light up. So I could only use...
This content is originally created by EEWORLD forum user cxmdz . If you want to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source...
[i=s]This post was last edited by freebsder on 2018-1-27 03:48[/i] [b][color=#5E7384] [/color][/b] [b][color=#5E7384]This content was originally created by EEWORLD forum user [size=3]freebsder[/size]....
Abstract: Modern signal processing systems usually require high-speed data communication between different processors. The SRIO protocol is widely used due to its high efficiency and low latency. This...
Dear teachers, how do you choose the filter capacitor for the bridge rectifier circuit?
When calculating the filter capacitor after bridge rectification, it is often necessary to first set a time cons...
After installing Visual Studio 2005 Professional Edition by default, I cannot use Visual C++ to create projects related to Smart Devices, but I can use Visual C#. I don't know why, and I'm so anxious!...
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]
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]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[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 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]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
0 Introduction
Wireless Sensor Network (WSN) monitors the target by deploying a large number of sensor nodes in the target area. WSN realizes the positioning and tracking of the target, determi...[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]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
Renesas Electronics MCUs
京公网安备 11010802033920号
EEWORLD
