My test program calls: bRet=ReadFile(hDevice, buffer,4, &ulRead,NULL); buffer is a pointer of ULONG type. Since the length in ReadFile refers to the number of bytes, it is followed by 4. The value of ...
Can ZigBee use PWM to control the dimming of an external bulb? I saw the ZigBee PWM dimming code is to control the LED dimming on the ZigBee board, so how to adjust the dimming of an external bulb? Do...
What are the standard crystal oscillator of XT2, ceramic oscillator, and external digital clock source of LFXT1? I read this in a book. I wonder if the crystal oscillator used in 51 can be used? In ad...
I saw that Renesas is still the sponsor this year. I am afraid that they will specify a single-chip microcomputer again, so I have to choose a Renesas single-chip microcomputer to see. Do you have any...
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
This paper establishes a fuel cell engine test platform based on the NI integrated hardware and software environment. This platform can realize the test and control of fuel cell engines and their a...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
When designing a PLC system, the control scheme should be determined first, and the next step is to select the PLC engineering design. The characteristics of the process and the application require...[Details]
3. Driving circuit design
The power driver uses a field effect tube, which is a field-controlled device with a capacitance effect between the gate and source, so it has high requirements for t...[Details]
1 Introduction
The ball nut is the internal thread element of the ball screw pair. Its precision directly affects the transmission quality of the ball screw pair. Due to its advantages such as...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to be solved urgently. As an important method for detecting automobile ex...[Details]
Tags: Intelligent Video Video Surveillance HD Video
Currently, intelligent video analysis technology is gaining more and more attention in the security industry, and many projects have...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
The basic principle of solar power is: the collected light energy is converted into electrical energy and stored, and the stored electrical energy is released when the load is turned on. A typical ...[Details]
Google held the I/O conference in San Francisco on June 27, US time. It is worth noting that the number of devices equipped with the Android operating system has tripled in one year. At this time last...[Details]
1. Research status of single-phase grounding fault in small current grounding system
There are many methods for selecting lines for small current grounding adopted at home and abroad, whic...[Details]
Embedded System
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