LoRa stands for Long Range Radio. As a linear frequency modulation spread spectrum modulation technology, it was first launched by a startup company Cycleo founded by several young people in France. I...
The figure below is the audio preamplifier circuit diagram. A, B, and C are three pins used for external switches. When AB is connected, the gain is 20db, and when AC is connected, the gain is 40db.Wh...
[i=s]This post was last edited by hujj on 2020-11-25 09:54[/i]Voice control of household electrical appliances is an important part of smart home and a focus of my test. Initially, I planned to use th...
What is an IoT platform?
Alibaba Cloud IoT Platform is an integrated platform that integrates capabilities such as device management, data security communication, and message subscription. It supports...
The program uses a constant array to store Chinese character libraries. When this array is commented out or not, the compiled code size is the same, both 127.67Kb. Is there any setting required?...
On August 29, at the "2019 Global Venture Capital Summit", the "Xi'an Longmen List TOP20" and "2019 Xi'an Future Star TOP100" selection lists were officially announced. It is reported that the "Xi'...[Details]
1. Introduction to principles 51 There is a full-duplex serial interface inside the microcontroller. What is a full-duplex serial port? Generally speaking, a serial port that can only receive or send...[Details]
As AC induction motors become the preferred choice for industrial motors, the need to reduce power consumption in all aspects of the design continues to emerge, so improving the efficiency of these...[Details]
Digital modulation signal is also called keying signal. Its modulation process is to modulate the amplitude, frequency and phase of the carrier signal by the baseband signal using the keying method...[Details]
9G-NUC140 Nuvoton CM0+EWARM Getting Started Development Process Introduction
1. Prepare EWARM + Nuvoton CM0 software package
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Download IAR Embedded Workbench for ARM v6.20 FULL CD-EWARM-6201-...[Details]
1. Comparison of high-frequency crystal oscillator measurements Let's first feel the difference in measurement results when the probe ground wire is long or short. Take the crystal oscillator signal ...[Details]
adr: relative addressing, related to the current position ldr: absolute addressing, independent of the current position adr is used when initializing SDRAM. The code is as follows: /* Initialize...[Details]
This article discusses the principle of pseudo-random bit stream, a test pattern commonly used in high-speed serial links, and the impact of different test patterns on physical layer test results.
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The digitization of all media, including audio, video, and images, has put forward higher and higher requirements for signal processing. These digital signal data contents need to be created, st...[Details]
Stockholm, Sweden, February 16, 2022 - ContextVision, a medical technology software company focused on image quality and artificial intelligence, recently announced its fourth quarter and full year 2...[Details]
Recently, Tesla CEO Elon Musk posted a picture of a Tesla "asteroid hitting the earth" on a social platform, which seemed to express his mood. Although Tesla's stock price has experienced ups and dow...[Details]
MAX732 standard boost application circuit
The figure shows a standard 12V or 15V boost application circuit, which works in continuous conduction mode. This circuit can work normally within...[Details]
The hydrogen fuel cell chassis jointly developed by SinoHytec and BAIC was exhibited at the 2019 World New Energy Vehicle Conference Hydrogen fuel cell vehicles are the hottest topic in public opi...[Details]
According to Reuters, sources said that as the impact of the global chip shortage spreads, the US government's approval of licenses for US companies such as Lam Research Corp and Applied Materials In...[Details]
The development of fast charging technology continues to break through the power limit. As the power increases, the temperature rise effect of the chip becomes more significant, and the heat loss i...[Details]
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