I would like to ask: After adding a product to the ONENET platform, when adding a device, the automatic subscription option is, does it mean that the device side subscribes to the messages on the ONEN...
1. Pure ALOHA algorithm: It mainly adopts the method of tag speaking first, that is, once the electronic tag enters the working range of the reader and obtains energy, it will actively send its own se...
At present, the sensor protocols of various manufacturers are different, which makes data transmission very difficult. Based on this, the role of the industrial gateway is to convert the protocols of ...
[size=5]I have been troubled by this problem many times before. In order to solve the problem once and for all, I have summarized the possible problems. [/size] [size=5]Solution: [/size] [size=5]First...
UPS is the abbreviation of Uninterruptable Power System. It is divided into two types: dynamic and static. Dynamic UPS is composed of rotating motors, while UPS composed of electronic components is s...[Details]
1. Multi-file programming again Because the timer is often used in the following tutorials, we also encapsulate this part of the function code in a separate file. We have already taught you how to...[Details]
Road icy warning system
During the Spring Festival of the Year of the Goat, the capital of China welcomed the first (and possibly the last) decent snowfall of this winter. However, t...[Details]
Use enameled wire to wind a coupling inductor around the toroidal core, with 60 turns on the primary side and 30 turns on the secondary side, as shown in the figure. Use enameled wire to wind a co...[Details]
Simply put: if you want to use printf in mdk, you need to redefine the fputc function and avoid using semihosting (semihosting mode).
The default output device of the standard library function is the...[Details]
BOE joins hands with ecological partners to unlock a new future for the e-sports industry On June 8, as a global IoT innovative enterprise and leader in the semiconductor display field, BOE offici...[Details]
On the evening of December 30, Han's Laser announced that from September 18, 2020 to the date of disclosure of this announcement, it had successively received winning bid notices sent by email from i...[Details]
On May 11, according to foreign media reports, due to growing concerns about the possible impact of relying on Asia for production facilities for key technologies, the Trump administration of the Uni...[Details]
Introduction In an unknown environment, road conditions are complex and unknown. The accurate road condition detection of mobile robots and their own stable operation are very important for both onbo...[Details]
Recently, according to foreign media reports, Panasonic has cooperated with a professor at Ritsumeikan University in Japan to develop a new battery management technology that can accurately evaluate ...[Details]
According to official news from IDC, global traditional PC shipments reached 84 million units in the first quarter of 2021, a year-on-year increase of 55.2%, including desktops, notebooks and ...[Details]
Translated from 5gradar Previous reports have said that less than 1% of all smartphone sales in the United States last year were 5G-enabled devices. Only a handful of devices on the U.S. market...[Details]
1 Introduction ARM (Advanced RISC Machines) can be considered a company, a general term for a type of microprocessor, or a technology. Microprocessor applications based on ARM technology account for ...[Details]
In order to improve the stability and energy density of power batteries, many companies have begun to develop solid-state batteries. Solid-state batteries use solid electrolytes and have relatively h...[Details]
High voltage cabinet and low voltage cabinet are two indispensable components of the power system, and there is a close relationship between them. This article will introduce in detail the function...[Details]
stm32/stm8
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