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At present, the infusion site in hospitals is generally controlled and supervised manually, but the infusion speed and volume are difficult to accurately grasp. Nurses control the infusion speed by tu...[Details]
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In mid-July, a piece of news that "Intel plans to spend $30 billion to acquire GlobalFoundries, the world's fourth largest chip manufacturer" was widely circulated. However, on July 20, GlobalFoundri...[Details]
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1. Introduction to Sweeper A sweep frequency meter, also known as a magenta characteristic plotter, is a general electronic instrument that combines a sweep frequency signal source with the XY di...[Details]
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麦克风用在嵌入式系统中已经有很多年了。然而，自其诞生以来，由于家居、汽车和可穿戴设备中基于语音的应用范围不断扩大，MEMS 麦克风的市场使用率迅速增加。MEMS 麦克风不仅具有显著减少电路板空间、低功率要求和提高抗电噪声能力的优点，而且还具有更高的设计灵活性，有多种输出选择。模拟输出 MEMS 麦克风仍然是工程师们的一个选择，以及像脉冲密度调制 （PDM） 和集成电路内置音频 （I²S） 这...[Details]
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1. MONITOR
is a listening method used to receive weak signals. By pressing a special key to forcibly connect the receiving signal channel, the operator uses his ears to distinguish the weak so...[Details]
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The way instructions give data to be operated is called addressing mode. In other words, addressing mode is to find the real address of the number involved in the operation. There are 7 addressing ...[Details]
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Interrupt handling function prototype
void timer1() interrupt 0 using 0
timer1() function name
interrupt means interrupt processing function
0 indicates the processing fu...[Details]
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Triangle connection principle diagram
Star connection principle diagram:
The meaning of star connection: The star connection of the motor is to connect one end of each phase winding...[Details]
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#include pic.h #define uchar unsigned char #define uint unsigned int flying i,temp; uchar count; void delay(uint x) //1ms { uint y,z; for(y=x;y 0;y--) for(z=25;z 0;...[Details]
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Jiwei.com reported on June 16 that according to the latest analysis report from the China Academy of Information and Communications Technology, in May 2021, the total shipments of the domestic mobile...[Details]
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The piezoelectric effect of quartz crystal is determined by its internal structure. The silicon ions Si4+ and oxygen ions O2- that make up the quartz crystal are projected on the Z plane, as shown in...[Details]
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1 Introduction
A voltage source, or ideal voltage source, is a model abstracted from a real
power source
. It can always maintain a certain voltage at both ends regardless of t...[Details]
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On March 14, according to SamMobile, Samsung announced the launch of Smart Monitor M8 in South Korea, priced at 850,000 won (about US$691), and will be available in online and offline stores across S...[Details]
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Pinjia Group has recently been actively promoting NXP's set-top box (STB) integration solution. The STB225 can support high resolution of H.264/VC1 and is suitable for applications such as hybrid I...[Details]
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This unit is used to amplify the signal of NAMUR type sensor. The static output can achieve reliable high switching frequency. LED displays the two output states. The output is short-circuit and reve...[Details]
ARM Technology
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