I have done a lot of operations before. At some point, I executed catkin_make under catkin_ws. I did not compile the workspace. It was done. BUILD_SHARED_LIBS is on. Many packages should be scanned la...
1 OverviewThis example uses clocks of different frequencies generated by PLL to drive three LED indicators to flash at the same frequency. The focus of this example is not the LED , but the applicatio...
Module ImageThe microcontroller source program is as follows://
//===========================================================================//#include "msp430x14x.h"
#include "PIN_DEF.H"
#include "RC...
Line Regulation 1. Definition: Also known as source effect or grid regulation, it refers to the fluctuation of output voltage with linear change of input voltage, under the condition of full load. (W...
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Analysis of the topic of the college electronic competition - 2021 Topic E "Digital-analog signal hybrid transmission transceiver"
Analysis of College Students' Electronic Competition Question...
Today, TrendForce released a report saying that the smartphone market next year will still rely mainly on cyclical replacement demand and new demand from emerging countries, and the annual prod...[Details]
Amplifier
The power amplifier, also known as the PA or "amplifier", is the most basic device in the audio system. Its task is to amplify the weak electrical signal from the signal source (...[Details]
Practical application systems often require high-precision measurements, and must also perform real-time and fast control to improve their development efficiency. For this reason, people often use ...[Details]
introduction
As an input device, the touch screen has the advantages of being durable, fast in response, space-saving, and easy to communicate. It provides a simple, convenient, and natural wa...[Details]
China Energy Storage Network News
: From May 19th to 21st, the "8th China International Energy Storage Conference" was grandly held in Shenzhen. More than 1,500 representatives from governmen...[Details]
According to foreign media reports, self-driving cars will gradually become a popular means of transportation in the next few years. However, before that, researchers need to develop tools to ensure ...[Details]
51 MCU interrupt principle The concept of interruption: When the CPU is processing an event A, another event B occurs and requests the CPU to process it quickly (interrupt occurs). Then the CPU will ...[Details]
International New Energy Network News: Photovoltaic power generation systems include components, brackets, junction boxes, distribution cabinets, inverters, cables and other accessories. Among them...[Details]
The procedure is as follows:
#include AT89x52.h
#define uchar unsigned char;
uchar key_val=0; //define key value, the initial default is 0
uchar code TAB ={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0...[Details]
Wu Xiaobo Channel failed to go public, and Smartisan Technology CEO Luo Yonghao used six words "dreaming too big and entering the wrong industry" to describe the reason for its failure. Is the real...[Details]
The OriginOS Ocean original system started recruiting for the second batch of public beta today, including 8 mobile phones from the vivo and iQOO brands. 【Model requirements】 X60, X60t, iQOO 5, iQO...[Details]
On December 13, according to an announcement from the State Intellectual Property Office, Great Wall Motor Co., Ltd. applied for a project called "Processing Methods for Internet of Vehicles Services...[Details]
Dot matrix online laser coding technology can achieve high-speed and high-precision online coding, represents the latest development direction of current online coding technology, and can provide ente...[Details]
Amplifier working process and composition principle:
(1) Workflow Input - Preamplifier - Driver - OTL power output - Speaker (2) Composition principle ① Preamplifier (input) The preamplifier is co...[Details]
What is vehicle testing?
In-vehicle testing refers to the process of testing and diagnosing vehicles and their related systems in the automotive field. It is a systematic testing method design...[Details]