I created a new smart device project and want to operate the database. 1. Access database, file test.mdb, I can't start, I don't know which reference. 2. When using sql server, file test_Data.mdf, I d...
I soldered a 51 minimum system myself. The program downloaded and downloaded by the chip on the development board can be used. But when it is placed on the one I made, there is no delay effect. There ...
At first, AD9244 worked fine, but after a while, it started to smoke. What's going on? I made the same board twice, in the same PCB processing factory. The first time it was fine, but the second time ...
It is now possible to connect low-power nodes to the Internet using a variety of wireless technologies.Among all wireless technologies, using the Sub-1 GHz band for communication can achieve the longe...
Is it possible to connect op amps in parallel to double the output current? Every once in a while, I see questions like this on the E2E forum. Although we'll reply in the affirmative, it's enough to s...
Recently, the results of the 2018 German Red Dot Design Award were announced. GoodWe, a company located in Suzhou High-tech Zone, stood out among thousands of outstanding design products from 5...[Details]
1. Problem When developing STM32 with IAR, I found that I could not print floating point numbers by redirecting printf to the serial port. The code is as follows: The output is as follows: It can...[Details]
Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
I have always wanted to write some posts and blogs, but I just couldn't bear to do it as I just graduated. After some preparation, I decided to write down some of the things I learned in the past few...[Details]
Time flies. Since the beginning of 2018, news related to home appliance companies have repeatedly made headlines, and competition in the home appliance market continues to intensify. In order to be...[Details]
As many companies listed with
the concept of
touch screen
begin to "transform and upgrade", the official voice of the TP industry is getting smaller and smaller. At the same time, the list o...[Details]
In most countries, the military is a fairly large group, and the health of soldiers is particularly important to the combat effectiveness of the army. The US Department of Defense's Advanced Resear...[Details]
At present, in the world,
the construction of
smart cities
is in the process of gradually landing from concept, and technology giants and investment giants are important participants in this...[Details]
According to foreign media reports, the 2018 GMC Terrain Denali is equipped with multiple collision detection systems, and a recent test verified the safety of the system. Even when driving in a bu...[Details]
In the Huaxing Optoelectronics LCD panel
factory
located in Guangming New District, Shenzhen
, apart from a few people repairing machines, it is often difficult to see other people. Here, ev...[Details]
This program is used in the development board to generate sounds of different frequencies. The overall program is relatively simple, mainly using two timers. The code and my comments are as follows. ...[Details]
What is SYSTICK: This is a 24-bit system tick timer, SysTick, with automatic reload and overflow interrupt functions. All microcontrollers based on the Cortex_M3 processor can obtain a certain time ...[Details]
On the eve of 5G
commercialization,
ZTE
has established and adhered to
the
5G
pioneer strategy, focusing on
5G
end-to-end solutions, and investing in standard setting, ...[Details]
In 2018, the National Development and Reform Commission issued a new photovoltaic subsidy policy. The benchmark on-grid electricity price was significantly reduced, the return on investment decreased,...[Details]
Embedded System
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