[i=s]This post was last edited by 莀荒蔚 on 2020-3-29 12:37[/i]Protocol stack version 1.3.0, slave file1.Add call to DHT11 acquisition event (SBP_START_DEVICE_EVT event in SimpleBLEPeripheral_ProcessEven...
Ultra-wideband (UWB pulse) uses a frequency band greater than 3GHz. Compared with the 2.4Ghz (mobile phone, WIFI signal) frequency band, the diffraction performance of UWB signals is very poor, which ...
This verifies the importance and convenience of radio electromagnetic waves. We must study whether this thing can record data accurately.Satellite distance recordAO-40 (USA/USA) – 18,730 km. ZL1AOX in...
I just bought a Beagle with Linux 9 pre-installed. I can log in to the system through a USB to serial data cable. The username is debian and the password is temppwd. Then I tried to log in as root thr...
Data is stored in NAND Flash in the form of electric charge. The representation of data is realized by whether the voltage of the stored charge exceeds a specific threshold, so Nand Flash storage medi...
[size=4]The driver program of GY-273 driven by msp430 single-chip microcomputer can accurately measure the azimuth, and some statements are explained in detail, which is suitable for novices[/size] [s...
By finding the causes of small signals and their impact on metering, the article puts forward the argument that small signals must be removed. It is hoped that it can be used in the current flow met...[Details]
Although face recognition has experienced a long-awaited explosion in market share, this does not mean that all factors that hinder the development of face recognition have disappeared. Some recogniz...[Details]
Last Friday, the semiconductor sector plummeted due to the bearish outlook of foreign banks on DRAM. In addition, TrendForce predicts that PC DRAM prices will fall by 0-5% in Q4, which has exacerbate...[Details]
According to news on December 12, Wuxi Indy Microelectronics Technology Co., Ltd. (hereinafter referred to as "Indy Micro") announced the completion of strategic financing of 300 million yuan. This r...[Details]
1. Composition of immediate number instruction code ARM divides the 32bit instruction code into the following two parts: The 32-bit immediate data is obtained by circularly shifting the Imm8 value ...[Details]
Japan Display has developed a car display that combines a rectangular curved LCD panel and a head-up display (HUD), and exhibited it at the "Display Innovation 2014" (October 29-31, 2014) he...[Details]
The Google Express logo is seen on a delivery truck parked in New York City on August 17, 2015. The logo has been updated and is no longer in use. According to foreign media reports, Google is tran...[Details]
In the previous section, we said that there are usually two ways to boot the kernel in an embedded bootloader: booting from Nor Flash and booting from Nand Flash. However, no matter whether it is boo...[Details]
Nidec's drive motor system "E-Axle" won the "Nikkei Award for Best Product and Service 2019" The "E-Axle" drive motor system for new energy vehicles developed, produced and sold by Nidec won the...[Details]
The domestic hybrid market has been very lively recently. At the 2021 Chongqing Auto Show held recently, Changan released the Blue Whale iDD hybrid system. Two months ago at the Shanghai Auto Show...[Details]
The figure shows the Burst Mode voltage control circuit. When the S43 level C54 (C54 and level C96 are equal to 0.84 V), the Burst_on signal is low and the power tube is turned off. When S43
...[Details]
In the detection of composite material characteristics, circuit electrical characteristics, human ECG detection, nuclear magnetic resonance, etc., it is necessary to accurately measure the surface v...[Details]
In general, the main factors that cause electromagnetic flowmeter errors can be divided into three categories: improper selection, influence of the measured fluid and interference. Improper selecti...[Details]
The generation rules of the ELF format "u-boot" file are as follows. The following is an analysis of each dependency corresponding to the execution process of the Makefile.
$(obj)u-boot:...[Details]