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On August 12, Microsoft released Surface Duo. The 128GB version is priced at US$1,399.99 (approximately RMB 9,700) and the 256GB version is priced at US$1,499.99 (approximately RMB 10,400). ...[Details]
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The International Energy Agency (IEA) recently released a report stating that in order to avoid more serious impacts of climate change, countries need to triple their investment in clean energy tec...[Details]
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Definition of Real-time Spectrum Analyzer
Spectrum analyzers are commonly used instruments in RF microwave design and testing. They can help electronic engineers comple...[Details]
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The efficiency of C51 program compilation to generate assembly code is determined by many factors. For Keil C51, it is mainly affected by the following two factors: Section 1 The impact of storage...[Details]
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u8 KEY_Scan(u8 mode)
{
static u8 key_up=1;//button press and release flag
if(mode)key_up=1; //Support continuous pressing
if(key_up&&(KEY0==0||KEY1==0||KEY2==0||KEY3==1))
{
delay_ms(10); //de...[Details]
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1. Serial communication concept 1. The role of serial communication Serial communication is mainly used for communication between the microcontroller and external devices. The 51 microcontroller itse...[Details]
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Qualcomm expands wearables market presence with new platform investments and Qualcomm Wearables Ecosystem Accelerator
—Qualcomm Snapdragon Wear Platform Shipments Exceed 40 M...[Details]
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The AD52090 is a highly efficient stereo Class D audio amplifier with an adjustable power limit function. The speaker driver operates from a 4.5V~26V power supply voltage, and the analog circ...[Details]
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Download address: https://pan.baidu.com/s/1-oGcJ0p-iV4WZ9d6lL0KaA Extraction code: 7v35 Espressif4_4_1 streamlined portable: https://download.csdn.net/download/qq_29246181/86399639 VSCode1.61_Embed...[Details]
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On April 25, the first day of the 2024 Beijing International Auto Show, CATL released the world's first new lithium iron phosphate battery with both 1,000km range and 4C supercharging characteristics ...[Details]
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引 言 步进电机是一种将电脉冲信号转换为角位移的执行机构。其主要优点是有较高的定位精度，无位置累积误差；特有的开环运行机制，与闭环控制系统相比降低了系统成本，提高了可靠性，在数控领域得到了广泛的应用。但是，步进电机在低速运行时的振动、噪声大，在步进电机的自然振荡频率附近运行时易产生共振，且输出转矩随着步进电机的转速升高而下降，这些缺点限制了步进电机的应用范围。步进电机的性能在很...[Details]
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FTS-300 fiber optic cable tester is an optical tool test instrument that integrates OTDR, fiber optic cable search, red light source, light source, optical power meter and fiber end face detection ...[Details]
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Use the ATmega168 hardware SPI driver 74HC595 to expand the serial interface. Set MOSI and SCK to output, and then set the registers. , as follows: static void vSpi595Init(void) { DDRB|=(1 DD...[Details]
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Coaxiality detection is a problem we often encounter in measurement work. Using three-coordinate measurement to detect coaxiality is not only intuitive and convenient, but also has high measurement ac...[Details]
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Can Xinlian Integrated Circuit continue its good growth momentum in the fourth quarter? What is the profit trend of the silicon carbide business? Who are the customers of analog IC? What is the r...[Details]
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