[indent][align=left][b]Question[/b]: I want to know the process id of the subshell of the running script. How can I get the PID in the shell script? [/align][/indent][align=left][color=rgb(0, 0, 0)][f...
A paragraph of text: [p=22, null, left][font=Tahoma]There was a pair of lions, mother and son, on the grassland. The little lion asked the lioness: "Mom, where is happiness?" The lioness said: "Happin...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:41[/i]This article introduces the integrated temperature sensor AD590, and gives the specific circuits for AD590 to measure thermodynamic tem...
[b][font=微软雅黑][size=4][color=Red]The July winners list has been announced: [url=https://bbs.eeworld.com.cn/thread-377437-1-1.html]Winners list of Intel white paper download gifts[/url][/color][/size][...
typedef struct
{uint32_t ExtId;/*!< Specifies the extended identifier. This parameter can be a value between 0 to 0x1FFFFFFF. */uint8_t DLC;uint8_t Data[8]; /*!< Contains the data to be received. It r...
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
This article will introduce a design method for a distributed control system used in a tracking car, which can perform distributed control of motor modules, sensor modules, and lighting control mod...[Details]
With the rapid development of wireless
digital communication
, more challenges have been raised for integrated circuit design and testing. In the product design stage, in order to ensure
t...[Details]
The launch of Shenzhou IX is imminent, and Tiangong is welcoming visitors again. Yesterday, Professor Fu Qiang, Vice President of the Institute of Science and Industrial Technology of Harbin Instit...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
Energy conservation and environmental protection are the main directions of current automotive technology research, and power batteries are the key to electric vehicle technology. Research on powe...[Details]
Based on the actual situation, a remote intelligent anti-theft alarm device for home use, connected to the telephone line, simple to operate, and stable and reliable in operation is designed. When ...[Details]
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