[size=4]I want to insert data into SQlite, but the method in the reference book is: [/size] [size=4][b]sql = "INSERT INTO 'SensorData' VALUES(NULL,1234);";[/b][/size] [size=4][b]sqlite3_exec(db,sql,0,...
[i=s]This post was last edited by hehung on 2018-10-14 12:04[/i] After a period of contact and learning with the development board, I finally completed the work of this project. One of the advantages ...
I really want to get one now.Although I already have one, it was borrowed from the school.I want to buy one myself
But I only see the event notification in the forum but no purchase method....
After a few days of playing around with WinCE's dial-up Internet, I finally have a general understanding of it. I wrote some RAS dial-up programs, but now it's not enough to just dial up, I have to us...
:pleased:[size=3]Read classic books. As a technician, you should read classic books. Good programming books can not only help us improve our technical level quickly, but also help us establish good pr...
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
Among the many members of the single-chip microcomputer family, the MCS-51 series of single-chip microcomputers has occupied the main market of industrial measurement and control and automation eng...[Details]
From the previous section, we have learned that the timer/counter in the microcontroller can have multiple uses, so how can I make them work for the purpose I need? This requires setting the timer/...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Fruit planting is an important part of China's agricultural development, and fruit tree pest control operations are becoming more and more important. At present, the overall level of pesticide applica...[Details]
Introduction
Today, as IC (integrated circuit) has developed to a super-large scale, IC design based on IP (Intellectual Property) cores and their reuse are important means to ensure the ef...[Details]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[Details]
Zarlink Semiconductor has developed an ultra-low-power RF transceiver chip for pacemakers, neurostimulators, drug pumps, and other such implantable medical devices. It has high data rates, low power c...[Details]
In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]
1. Advantages of CAN-bus in coal mine communication
Coal mine production is a field closely related to the national economy and people's livelihood. Among them, coal mine safety is undoubtedly ...[Details]
Since the first rechargeable battery was invented in 1859, batteries have been developed for a century and a half. With the improvement of human science and technology and the advancement of manufa...[Details]
1 Introduction
In order to cope with the energy crisis and slow down global warming, many countries have begun to pay attention to energy conservation and emission reduction and the de...[Details]
There are two main ways to measure temperature: one is the traditional contact measurement, and the other is
non-contact measurement represented by
infrared temperature measurement
. Tradit...[Details]
A common problem encountered in electronic design is the testing of the transmission characteristics of the circuit under test (DUT). The transmission characteristics here include gain and attenuat...[Details]
According to the National Shipbuilding Industry Economic Research Center, the total shipbuilding capacity in my country last year was about 9×106t. The new ship orders exceeded 17×106t, accounting ...[Details]
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