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For radio management, spurious emission is an important cause of interference. In the process of radio transmission equipment detection, spurious emission test is an important and mandatory tes...[Details]
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The two-wattmeter method is a very common measurement method. Since it can save a set of voltage and current measurements in three-phase measurements and save a large part of the cost, the two-wattme...[Details]
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On June 10, blogger @数码闲聊站 hinted that a new Redmi product equipped with Qualcomm Snapdragon 8+ flagship processor has been filed. The phone uses a 2K 120Hz flexible straight screen, which will...[Details]
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Today, Apple released iOS 14.0.1, the first update to the iOS 14 operating system released on September 16. To get the new version, go to Settings General Software Update from the home scree...[Details]
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National Technology's N32S032 series products recently obtained the National Security Level 2 and National Testing EAL4+ security qualification levels. This series of products can provide advanced pr...[Details]
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IC card interface: The circuit uses Atmel's storage IC card AT24C01, which is used to store passwords, card numbers, electricity consumption, etc. written by the electricity sales management system...[Details]
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The board is GQ2440 made by China Embedded Technology Co., Ltd. For the main transplantation steps, please refer to Mr. Wei Dongshan’s "Complete Manual of Embedded Linux Application Development" 1. D...[Details]
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One of the internal structures of the "quasi-bidirectional IO" of the MCU's IO port. In fact, our MCU's IO port has three other states, namely open drain, push-pull, and high impedance. Let's look at ...[Details]
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The most discussed product this week is the iPhone 11 series released by Apple. There are three phones in the series. Because the upgrade did not exceed the expectations of the outside world, the tri...[Details]
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The LT6105’s input common-mode range also makes it suitable for monitoring either positive or negative supplies. The circuits below show one LT6105 used as a simple positive supply monitor and the ...[Details]
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As for the lines that appear in the lower right corner of the screen, it may be a bug in proteus
The procedure is as follows
#include iom16v.h
#include "stdio.h"
#define uchar unsign...[Details]
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1. Circuit Principle
The figure is a schematic diagram of the half-wave rectifier circuit of an isolated electronic transformer (the step-down ratio N of this circuit is 5, the input AC is 220...[Details]
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Introduction: I embarked on the road of embedded development in a daze. Looking back, thanks to several friends around me, I slowly embarked on this road through chatting with them: from the earliest...[Details]
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Pulse oximeter is a widely used medical measuring instrument. It is a non-invasive and painless test that measures the oxygen saturation level in our blood and can easily detect small changes in ox...[Details]
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One million stations are newly added! Yumiaochong's Baguocheng all-liquid-cooled supercharging station leads the breakthrough. At the same time, the 318 Sichuan-Tibet Supercharging Green Corridor h...[Details]
RF/Wirelessly
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