Acoustic environmental noise measurement method GB/T 3222-94
Acoustics-Measurement method of environmental noise
GB/T 3222-94 replaces GB 3222-82.
This standard refers to the inte...[Details]
Sprint function in single-chip microcomputer: Note 1: When using this function, you must include the stdio.h header file, otherwise the program will easily get stuck . Note 2: The difference between ...[Details]
First, the working principle of the portable MP3 player and its system composition are analyzed, and then a design scheme of the MP3 player based on the 51 microcontroller is introduced. It uses AT89...[Details]
1. Overview of abnormal interrupts In the ARM architecture processor, the CPU has 7 working modes and 2 working states. 1.CPU mode (Mode): 7 Modes: Except for usr/sys, the other 5 modes are abnorma...[Details]
Methods for protecting electronic products from circuit system failures and managing power-on surge currents have come a long way, from simple fuses or P-channel FETs to more advanced solutions. Th...[Details]
Pulse and blood oxygen saturation reflect the important physiological state of the human body. The related measurement methods and measurement equipment have been widely used in clinical practice...[Details]
Recently, all the major mobile phone giants are promoting AI to take more perfect photos. How magical is this artificial intelligence? Let's take a look at the application of artificial intelligenc...[Details]
1. Experimental phenomenon:
The diode changes from left to right, and then from right to left like a marquee, and the interval between light changes is 1s.
2. Experimental Objectives:
l Master...[Details]
1. Both bit and sbit are variable types extended by C51. Bit is similar to int char, except that char = 8 bits and bit = 1 bit. They are all variables, and the compiler assigns addresses during t...[Details]
Contents The utility model relates to a gas flow meter, in particular to a swirl flow meter. Background of the Invention Vortex flowmeters are widely used in the petroleum, chemical, electric power...[Details]
__IO uint32_t StartUpCounter = 0, HSEStatus = 0;
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration ---------------------------*/
The main purpose of this function is to set the above 4 clock...[Details]
Recently, as the exposure news of Huawei nova 5 series has continued to leak out, Huawei nova 5 series has finally been officially announced. On June 11, Huawei Terminal’s official Weibo offic...[Details]
Is Apple TV about to 'take off'? Earlier reports have suggested that an Apple TV model with an A12X Bionic inside is coming soon, which will be the most powerful Apple TV ever. This is the s...[Details]
According to the latest news from the well-known blogger @数码闲聊站, the under-screen camera panel has become mature and will be shipped on a large scale in the second half of the year. He also r...[Details]
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