A simple square wave signal generator that can adjust the frequency with one button. The LED lights up when the frequency is out of range. The frequency range is 100-1000hz.
#include reg52.hsbit PWMOU...
In this example, P2.0 and P2.1 of MSP430fr6989 are selected as serial ports UCA0TXD and UCA0RXD; (There is not much code, mainly for register operations, and it is written in the main.c file in a hurr...
[size=4][b]Question[/b][/size] [size=4]How to consider electromagnetic compatibility (EMC/EMI) when designing PCB? What specific aspects should be considered? What measures should be taken? [/size]...
I connected the red test lead to pin 46 (the pin that generates PWM) and the black test lead to gnd on the board, but the oscilloscope did not display a waveform and the PWM indicator light was flashi...
[align=left][color=rgb(0, 0, 0)][font=Verdana, Arial, Helvetica, sans-seri][size=14px] There are three common ways to connect segment code LCD screens: 1. Metal pins 2. Zebra stripes 3. FPC, etc.; of ...
(1) How to use Before use, you should carefully read the relevant instructions to understand the functions of the power switch, range switch, jacks, and special sockets. Set the power switch to the O...[Details]
Some time ago, I attended a 2020 salon hosted by Mr. Han. We talked about how European auto parts companies are starting to change from top to bottom, and will gradually expand to the domestic market...[Details]
The upstream of the new energy vehicle high voltage power supply industry is mainly the electronic information manufacturing industry, and the main raw materials are semiconductor devices, hard...[Details]
The failure rate of capacitors in circuits is much higher than that of resistors, and there are many types of failures, making detection difficult. This depends on the approximate size of the capac...[Details]
At 10:47 on December 23, 2019, a fault occurred in the public power supply line along the Ehe River along Pingjiang Road in Suzhou, Jiangsu. At this time, the fault information popped up on the lar...[Details]
Recently, He Weiling, founder/chairman of Shanghai Xinlianxin Intelligent Technology Co., Ltd., and Yu Ke, president of Xinlianxin, attended the 19th China Communication Integrated Circuit Technology...[Details]
Introduction
With the continuous application of contactless logic encryption cards, the shortcomings of its technology are increasingly exposed, and it is difficult to meet the needs of higher ...[Details]
DSP has powerful computing and processing capabilities for digital signals and numerical algorithms, so it is widely used in signal acquisition and processing, but it does not have an advantage in ...[Details]
According to Sina Finance, it was previously reported that due to the expiration of the US temporary agreement, Huawei's Android system will not be able to update the system and upgrade the security ...[Details]
Download the complete program source code: http://www.51hei.com/f/avrds.rar
main function:
/*
Program function: 18B20 temperature measurement results are displayed on 1602 LCD
Author: ...[Details]
1. PIC1 microcontroller programming (sending part) LIST P=16F877 #INCLUDE P16F876.INC CBLOCK 0X24; Reserve three bytes for display COUNT; used as a counter or register ENDC ORG 0X0000 ; program res...[Details]
The degree of intelligence in LED lighting systems is an issue that deserves attention. LED lighting can reduce energy consumption and maintenance costs, and intelligent LED lighting design can ...[Details]
With the continuous development of my country's national economy and transportation industry, the logistics and transportation industry has become an indispensable basic industry to promote the rapid...[Details]
DDR originated from SDRAM. Strictly speaking, it should be called DDR SDRAM. DDR SDRAM is the abbreviation of Double Data Rate SDRAM, which means double data rate synchronous dynamic random access me...[Details]
Microcontroller MCU
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