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1. Audio Signal and Audio Analysis Audio is an important medium in multimedia. The frequency range of audio signals we can hear is about 20Hz-20kHz, of which speech is distributed approximately withi...[Details]
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Toshiba recently announced that it will withdraw from the residential solar power generation business due to deteriorating profits caused by fierce competition.
Toshiba said in the annou...[Details]
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The s3c2440 integrates a 4-wire resistive touch screen interface, and the detection of touch point coordinates is achieved through A/D conversion.
S3C2440 has 4 touch screen interface mode...[Details]
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As an important driving force for the new round of automotive industry changes, chips are entering a new stage of development with the rapid evolution of "new cars" represented by smart electric vehi...[Details]
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We have seen many disassembly of LED infrared human body induction lamps, but being able to modify it to meet your own needs is the best way. This article introduces a technical expert who disassembl...[Details]
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2 modes of key detection (low level trigger and high level trigger) 12f509 is the control chip GP5 port is the key detection port key_time_cnt //delay counter key_flag //key flag (key_flag=1 key is v...[Details]
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In recent years, China has been firmly and clearly promoting the industrialization of fuel cells . Hydrogen fuel cells are a key technology for the future development of the country's energy structu...[Details]
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The instantaneous current impact during the power supply startup process is very large, which has a serious impact on the service life of the power supply and devices. Using a good control method t...[Details]
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According to news on March 7, according to domestic media reports, mainland China will require a large number of mature process semiconductors above 28 nanometers in the automotive industry in 2023, ...[Details]
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#include reg52.h sbit led0=P0^0; sbit led1=P0^1; sbit led2=P0^2; sbit led3=P0^3; sbit led4=P0^4; sbit led5=P0^5; sbit led6=P0^6; sbit led7=P0^7; void delay(void) { unsigned char a,b; for(a=0;a 200...[Details]
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Chapter 3 AD Conversion This chapter is divided into two parts. The first is the single channel conversion of AD, and the second is the multi-channel conversion of AD. First, convert the single chann...[Details]
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Using power lines as channels for communication is a good way to solve the last mile problem. However, as a communication channel, power lines have the characteristics of high noise, multipath effe...[Details]
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Capacitive sensors generally convert the measured change into a change in capacitance. At present, various types of sensors based on this principle have been widely used in measuring acceleration, li...[Details]
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I was working on a project recently, and when debugging, I found that the PA15 pin could only output a high level of 3.3V regardless of whether it was configured as output high, low, or input. Premis...[Details]
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Last time, I finished reading the boot assembly and prepared the C operating environment. Now I will start to learn the C source code and jump from the start.S file to the file
lib_arm/board.c ...[Details]
MicroPython Open Source section
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