[i=s] This post was last edited by dong2213dong on 2019-4-25 21:23 [/i] First of all, I would like to thank the forum and RT-Thread for organizing this reading activity. It has been a week since I rec...
Preface:
When driving the LCD screen, we need to use fonts, pictures and other data. For example, if we want to display Chinese characters, the process is as follows: Make a font library to generate a...
1. Zero drift phenomenon and its causesZero drift refers to the phenomenon that when the input signal of the amplifier circuit is zero, due to the influence of factors such as temperature change and u...
Silicon Valley startup SiFive has opened pre-sales for its "HiFive Unleashed" single-board computer (SBC), a RISC-V-based board running Linux. The core chip is a 1.5GHz U540 SoC, equipped with 8GB of ...
1. Vacuum cleaner type Understand the type of vacuum cleaner and check what kind of battery it is suitable for. Generally, vacuum cleaners now use lithium batteries or nickel-metal hydride batteries. ...
I have played with some Cypress boards before. The CY8CKIT-149 is a relatively lightweight one. It has no other redundant peripherals except the EZ-BLE module, which ensures the wireless connection fu...
0 Overview The zero-IF receiver was proposed several decades ago and has been applied in engineering for many times, but most of them ended in failure. In recent years, as communication systems requi...[Details]
Recently, the new energy vehicle company NIO announced that it has opened the country's first Sichuan-Tibet-Qiang charging loop line, with 12 charging stations along the route. This will greatly expa...[Details]
When we develop STMCU, we often need to select chips. Generally, we will read the selection manual and data sheet first. There are two parts that are often difficult to understand at first. One...[Details]
Vice Premier Liu He of the State Council investigated the development of integrated circuit companies in Beijing on the 2nd and hosted a symposium. Liu He pointed out that General Secretary Xi Ji...[Details]
Transformer coupled circuit
Rl may be the actual load or the lower amplifier circuit.
In the case of an ideal transformer, the power obtained by the load is equal to the power consumed by ...[Details]
0 Introduction
With the process of urbanization, the distance of people's lives is constantly expanding. The popularity of electric vehicles that replace fuel vehicles and bicycles has greatly ...[Details]
In the iOS 14.4 Beta 2 test version pushed to developers and public testers this week, foreign media found some code pointing to "genuine camera identification", indicating that Apple may introduce n...[Details]
I have some old lithium batteries. Some are used in obsolete mobile phones. Some are removed from laptop battery packs. They have been used for some time and the capacity has decreased. I don't kno...[Details]
Introduction: Here is a simple method for high-precision ultra-low frequency measurement of rotation speed without using an external counter. That is, the T0 counter inside the AT89C2051 microcontrol...[Details]
The single-chip microcomputer P IC l6F72 is the mainstream control chip of the current battery vehicle controller. It is combined with two 74HC27 (3-input NOR gate circuit ); one 74HC04D ( i...[Details]
Due to the lack of wettability and wicking, it is difficult to achieve rework of lead-free soldering. Is it impossible to achieve lead-free soldering of various components? This article will introduc...[Details]
(Note: This article is excerpted from Agilent's Test System Development Guide.) Test System Considerations There are many factors that must be considered when developing a test system. Three of...[Details]
To replace HID with LEDs in street and area lighting applications and produce equivalent light output, large arrays of LEDs are required. To drive these large arrays of LEDs, designers can choose dif...[Details]
As servers and data centers are increasingly used around the world, there is a growing need for stable and efficient power supplies to cope with the increasing power consumption. Power ...[Details]
Early this morning, a netizen left a message to Lu Weibing, President of Xiaomi Group China and General Manager of Redmi Brand: I hope that Redmi K50 will continue to maintain its cost-effectiv...[Details]
Embedded System
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