The following picture is a picture of the key display board, which uses TM1721 for LCD display and key scanning. However, in actual use, it feels that the anti-interference ability of this chip is ver...
1. Make a minimum system board: If you have never done ARM development, it is recommended that you do not be greedy and complete all applications at the beginning, because the startup method of ARM is...
[color=#333333][font=微软雅黑, arial][size=16px]The circuit is shown in the attachment and the analysis is as follows. If there is anything wrong, please correct me. Thank you! [/size][/font][/color] [col...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:12[/i] I would like to share with you my competition paper on digitally controlled current source. Let's exchange ideas....
Our team has the following mature solutions to provide: (1) DM365 (720P), DM365 (1080P) IP cameras, network cameras (2) DM6441/DM6446 (D1 resolution) IP cameras, network cameras (3) DM6467 8-channel D...
The load is an LED, the voltage is 5.5-7.5v, the current is 50mA. The power supply is a 3.7V-4.2V lithium battery. There is a button on the board, press it once to turn it on, press it again to turn i...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[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]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[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]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[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]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
PCB Design
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