Port Pins ..................................................................................................................................................... 7
I am using Keil to write a matrix keyboard input program for 89s52. I want to record the number of keyboard inputs, but the variable "y" never changes. I don't know what's going on. Can anyone tell me...
Bombercat is a security tool that combines the RP2020 and the ESP32 MCU. It combines the most common technologies: NFC technology (Near Field Communication) for access control, identification and magn...
Resistance R: Resistance refers to direct current, R=U/I. Impedance Z: Impedance refers to alternating current, Z=(R2+(XL-XC)2)-1/2 Characteristic impedance: refers to the resistance encountered by sq...
I feel a little addicted to logging into the EEWORLD forum now. I no longer steal vegetables or go to Renren. I am gradually focusing on the EEWORLD website. I have set the forum as my homepage. When ...
I want to use DSP to make something. The peripheral part is to collect sound signals, digitize them and send them to DSP. After processing, they are output after D/A. I don't know what type of periphe...
SigmaTel announced that the latest IP security digital camera video server launched by Huiyou Electronics has selected the SigmaTel PR818S system-level chip .The DVR supports four camera inputs and fl...
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]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[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]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[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. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[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]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[Details]