My graduation project is to use AT89s52 to make an IC card attendance machine. The components used are a 12864 LCD, PCF8563 (for displaying time), AT24C512 (for storing fonts and card reading records)...
In fact, it is an LED light strip, which is made into various specifications by connecting in series and parallel, and the surface is covered with yellow fluorescent powder....
I encountered an error when installing ActiveSync. The error message was "Error writing to file: C:\Program Files\Microsoft ActiveSync\wcesmgr.exe, please verify that you have access to the directory....
[color=#000][font=宋体][size=12px]This program is used to generate sounds of different frequencies in the development board. The overall program is relatively simple, mainly using two timers. The code a...
[i=s] This post was last edited by feifeizhuer on 2019-4-10 17:29 [/i] The package is TSSOP16, 5 pins for VDD, 6 pins for ground, 15 and 16 pins should have comparator function; it should be 8-bit. I ...
As the title says, I would like to share my own Chinese comments on the FreeRTOS v10.1.0 source code to help beginners get started. The link is as follows: [url]https://github.com/xupenghu/LearningFre...
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
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