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The parallel port only costs a few yuan. Use a small multi-purpose board to solder one.Don’t underestimate this circuit because it is very simple. It is actually very stable in use.The burning procedu...
Use 8031, keyboard, 6-digit LED display, ADC0809 to form a system function, send the analog quantity to 8031 microcontroller through A/D conversion, and display it on 6-digit LED. Requirements: 1. Giv...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:14[/i] :victory: I went to Freescale to have a look during the summer vacation. I was lucky enough to go deep into the core area, the Freesca...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:13[/i] I was completely decadent during the three days of New Year's Day. I just played and slept. I went to work right away. I haven't done ...
[code]
void timer1()
{TIMSK=(1[/code] [code]void fre_pwm(int i,int b) { DDRD |=(14); // OC1B pin is set to output DDRD |=(15); // OC1A pin is set to output TCCR1A=(0com1a1)|(1com1a0)|(1com1b1)|(0com1b...
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
Currently, the commonly used solar cell technologies include monocrystalline silicon solar cells and polycrystalline silicon thin-film solar cells. Production process: Monocrystalline silicon solar...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
1. Introduction
The advancement of USB technology makes designers prefer USB interfaces in PC peripheral development. However, existing
virtual instrument
development platforms such...[Details]
In recent years, the technology of Class D amplifiers has developed rapidly, and the most common application is in low-power products with each channel less than 50W. In these low-power application...[Details]
1. What is the basic working principle of power supply?
A: It converts the input higher alternating current voltage (AC) into the lower direct current voltage (DC) required for the PC to work ...[Details]
In recent years, information technology based on microelectronics and computer technology has developed rapidly, and ultrasonic non-destructive testing instruments have also gained unpreceden...[Details]