How to achieve positive and negative pulse output using a single battery power supply
To output positive and negative bidirectional pulse waveforms, is it necessary to use a positive and negative powe...
Here , USART0 is used, and PA9 and PA10 are selected as the transmitter and receiver of the serial port respectively .Initialize the pins and serial ports, and configure PA9 and PA10 to AF1 standby mo...
In the latest update, the rp2 and stm32 ports can enable the ubinascii.crc32() function via MICROPY_PY_UBINASCII_CRC32, which will add about 90 bytes to the flash space.https://github.com/micropython/...
This is the simplest and most accurate HCSR04 driver currently available. (I will give a comparison of the accuracy of several different drivers later.) [hide][code]from microbit import *from time imp...
[font=微软雅黑, "][size=14px][color=#000000][size=3]I. Preliminary understanding of Kalman filtering[/size] 1.1 About Kalman Before learning about Kalman filter, let’s first look at why it is called “Kalm...
I received the joy of passing the review over the weekend, and I got this joy on Wednesday, so I’d like to show it off first.The development board is very simple, with only a CH579 chip, an Ethernet p...
Ground resistance tester, English abbreviation: Ground Resistance Tester. The ground resistance tester is a commonly used instrument for testing and measuring ground resistance. It is also an indis...[Details]
IT Home reported on April 7 that Xiaomi released the Xiaomi 11 Ultra flagship phone at the end of last month, calling itself the "Light of Android". The price starts at 5,999 yuan, and the 12+2...[Details]
July 6 news According to a previous report by the Securities Times, Huawei will cooperate with China Mobile and China Aerospace Corporation to launch two satellites in July this year. Huawei's move t...[Details]
On the afternoon of December 2, Apple announced the App Store's annual selection of games and apps. In previous years, this event was called Best of (Best of the Year), and this year it became ...[Details]
1 Introduction
In the late 1990s, embedded systems were increasingly used in industrial control, remote monitoring, data acquisition and other fields, and people also put forward higher requir...[Details]
Recently, the official Weibo account of the Chinese Peacekeeping Police praised Xiaomi 9, saying: "As a Chinese peacekeeping police officer overseas, we feel proud and proud, and we like our motherla...[Details]
Digital interface series articles: SPI bus
The Serial Peripheral Interface (SPI) bus is a synchronous serial data link that operates in full-duplex mode. It is used to exchange data between a sing...[Details]
Will the wave of "price increases" in March continue to erode the market share of ternary lithium batteries ? No one would have thought that lithium iron phosphate batteries , which were "industry ...[Details]
Of the many attractive features of solar panels, one of the most prominent is their environmental benefits. Especially in areas with serious environmental problems, a source of power generation w...[Details]
According to Taiwan Economic Daily, Samsung is actively catching up with TSMC in 5nm process. Data from research institutions show that Samsung's 5nm mass production in South Korea still lags ...[Details]
Output 1KHz and 500Hz audio signals to drive speakers
Use P1.0 to output 1KHz and 500Hz audio signals to drive the speaker as an alarm signal. The 1KHz signal is required to sound for 100ms and the...[Details]
According to Reuters, two people familiar with the matter told Reuters on Thursday (US time) that the United States will add dozens of Chinese companies, including SMIC, to the trade blacklist on Fri...[Details]
Zuosi Auto R&D released the "2023 OEM Intelligent Cockpit Design Trend Research Report". As the most intuitive window for experiencing automobile intelligent technology, smart cockpits are steadily...[Details]
Today's electronic components are designed to achieve high performance while reducing size, power consumption and cost. Effective and accurate component performance description, design, evaluation an...[Details]
As electronic systems become increasingly complex and feature-rich, the requirements for board-level power management and control are becoming more and more complex. Providing multiple low voltages...[Details]
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