Indoor positioning——UWB ranging and positioning principleWe all know that satellite signals will be seriously affected indoors, which will cause GPS or Beidou to be unable to locate. Therefore, indoor...
[i=s] This post was last edited by zhangyadong300 on 2018-9-27 11:31 [/i] Since I received the module, I have been thinking about which aspects can be more comprehensively evaluated. After seeing the ...
Different from 51, AVR and other single-chip microcomputers, the clock signal sources of msp430 include LFXT1, XT2 and DCO.
1. LFXT1: It can connect high-speed and low-speed crystal oscillators. In lo...
[size=4]Antennas are widely used in EMC and RF testing and measurement. Commonly used antennas are as follows:[/size] [size=4] [/size] [size=4]1. Biconical antenna:[/size] [size=4] [/size] [size=4]Com...
A: How can I speed up the IO port flipping speed? What determines the IO port flipping speed?The flipping speeds on different platforms vary greatly. Where can I set this?B: gpio_set_value is a system...
Recently, I have come into contact with some friends who use pulse
power supplies
. I found that when they need square wave output, they use
full bridge
plus transformer, and th...[Details]
Bus: refers to the information transmission line that can serve multiple components. In the microcomputer system, each component communicates with each other through the bus.
Address bus: ...[Details]
The purpose of selecting a motor protector is to enable the motor to fully exert its overload capacity and avoid damage, and to improve the reliability of the electric traction system and the conti...[Details]
A program consists of a code segment, a read-only data segment, a data segment, a bss segment, etc. The program can be burned on Nor Flash at the beginning, and the code segment can still run on No...[Details]
According to Davidson, Apple plans to add "Passkeys in iCloud Keychain" to iOS 15 and macOS Monterey. When you create an account using a key, you don't need to enter a password, you only need to l...[Details]
High-speed ADC and DAC are one of the key components of modern wireless communication systems or radar systems. The following introduces the test indicators, test system construction and indicator ca...[Details]
The hearing range of a newborn baby can reach up to 20KHz. As the baby ages, his hearing declines at an average rate of 200Hz per year. By the age of 20, the hearing range has dropped to 8KHz, and th...[Details]
RSEG is a segment selection instruction. To understand its meaning, you need to understand the meaning of segment.
A segment is a storage unit for program code or data objects. Program code is placed...[Details]
I wanted to start my own program on the Linux system on the development board. I thought it was simple, but it took me a long time to figure it out. After going around in circles, it is indeed very...[Details]
NAND flash memory manufacturers are preparing to launch chip products with more than 200 layers between the end of 2022 and 2023, which is a milestone in the industry's transition to higher-density 3...[Details]
If you want to learn how to test, you must first learn how to calibrate! What is a Network Analyzer? Network analyzers are used to characterize radio frequency (RF) devices. Although originally des...[Details]
During each growth stage of tomatoes, weak light environment will have a great impact on the growth of tomatoes, so it is necessary to supplement light during each growth stage of tomatoes. As for ho...[Details]
Recently, the authoritative data consulting agency S&P Global released the Energy Storage Inverter (PCS) Report 2024. The report shows that in 2023, Kehua Data (002335)'s wholly-owned subsidiary Kehua...[Details]
Although the new energy vehicle industry has developed rapidly in recent years and power battery technology has made great progress, the problem of long charging time has been widely criticized by ...[Details]
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