Is the price of a crystal oscillator generally around RMB 1.00? Some time ago, I encountered an 8M ceramic oscillator, and the supplier quoted a price of 11 yuan. I wonder what the reason is?...
Personal information: I graduated from a computer science degree and have been engaged in embedded development for three years. I am familiar with Linux, UCOS, ARM, etc. Based on the principle of tran...
The speed of SPI is set to a certain value, and the minimum is about 72M/256=300k. I want a speed of tens of K. Can any expert help me give me an answer? Can the speed of SPI be set to any value?...
I would like to recommend a [b]free[/b] PCB design software: KICAD. It can make up to 32 layers of boards, and the PCB can be viewed in 3D. It is simple and easy to use. It can generate gerber files w...
I want to add a constant string after a string defined by LPTSTR. How can I do this? The code I want to implement is as follows: LPTSTR dialno; GetDlgItemTextW(IDC_EDIT_NO,dialno,MAXLENGTH-1); dialno ...
Yesterday, a sophomore junior told me about the knowledge of capacitors. I was very inspired after listening to it. I found that I had to go through so many learning paths because of my ignorance of c...
Hardware designers have begun to adopt FPGA technology in high-performance DSP designs because it can provide 10-100 times faster computing than PC-based or microcontroller-based solutions. Previou...[Details]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[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]
1 Development of LED Film and Television Lighting
1.1 The significance of developing film and television lighting
Lighting power consumption accounts for a large proportion of the total p...[Details]
Embedded System
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