Abstract: This paper aims at some problems encountered by the existing DCS system in practical application, combines the technology of communication and computer, proposes a solution based on QNX dist...
Yuanhang Xinghui Company has been specialized in PCB processing for many years, and actively provides customers with PCB design, PCB welding and other supporting services. Alibaba TrustPass quality ce...
WiFi systems use two main wireless transmission technologies. 802.11b (<=11Mbps): 802.11b wireless links use a direct sequence spread spectrum technique called complementary code keying (CCK). The bit...
Most chip resistors are specified with positive and negative values, such as ±100ppm/℃ or ±200ppm/℃.This means that the resistance value may change in either direction due to temperature changes.The f...
This article explains the oscillation of the op amp in the most popular language : the problem is further aggravated when the feedback signal is delayed. Due to the delay in the loop, the amplifier ca...
Why is it that I set the battery and AC to "Never" in the power management, and the backlight will not be turned off after setting it, but once the machine is restarted, the backlight will automatical...
The most significant event in the technology circle during this period is undoubtedly the news that ZTE was banned by the United States. Once the news came out, it shocked the entire Chinese techno...[Details]
In 2017,
Sanan Optoelectronics
achieved sales revenue of 8.394 billion yuan, operating profit of 3.856 billion yuan, and net profit attributable to shareholders of the parent company of 3.1...[Details]
On April 19, it was reported that Alibaba DAMO Academy is developing a neural network chip, Ali-
NPU
, which is mainly used for
AI
reasoning calculations such as image and video analys...[Details]
When Amazon quietly launched a product called Elastic Computing Cloud 12 years ago, the Internet industry in China, across the ocean, also ushered in an unprecedented development opportunity. Let's...[Details]
Use the STM32 timer input capture module to control 3-way ultrasonic sensors. The ultrasonic sensor used this time is the common HC-SR04, which is often used in the obstacle avoidance system of smal...[Details]
STM32 has three startup modes. In RM0008 downloaded from the ST official website, you can find the startup-related configuration instructions: Translated into Chinese: The storage media corresp...[Details]
Summary of STM32 peripheral DMA usage: 1. Select DAM mode according to your needs: (1) Circular mode—DMA_Mode = DMA_Mode_Circular (2) Normal mode—DMA_Mode = DMA_Mode_Normal 2. For Chanel3 of DMA1, t...[Details]
Design a second and minute pulse generator for a single-chip microcomputer using the interrupt method. Assume that P1.0 generates a positive pulse of one machine cycle per second, and P1.1 generates ...[Details]
I have been deeply affected by serial ports since 51. The MAX232 I bought from Huaqiang was originally broken. I thought there was something wrong with my circuit or schematic. Since there was no goo...[Details]
On January 30, the Tai'an Sports College coal-to-electricity thermal storage heating project designed and constructed by Shandong CITIC Energy successfully passed the acceptance. The acceptance tea...[Details]
Today, the country attaches great importance to the Internet of Things, and the Internet of Everything has become the vision of all people in related industries. However, at the same time, masterin...[Details]
As one of the four major Chinese cool alliances, ZTE Mobile undoubtedly has a relatively deep foundation. However, this mobile phone brand has gradually declined in recent years. Now it is hoping t...[Details]
On May 7, 2013, Jia Yueting, wearing a black T-shirt, announced the official launch of
LeTV
TV Super TV, which set the entire color TV industry on fire and forced traditional manufacturers ...[Details]
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