Dear friends, why does my AD19 only show the wireframe after copper laying, but not the laid copper, as shown in the picture? Is there any setting? Switch to AD10 and open it, double-click the copper ...
Under CE5, I wrote a USB driver for Motola mobile phone. Now it loads OK. The information from the serial port is as follows: USBInstallDriver++ load USBD.DLL sucess! USBInstallDriver-- DLL_PROCESS_DE...
I now have a stm32f103 minimum system board and an ov7670 camera with FIFO. If I want to use the ov7670 camera with the minimum system board, can I not connect the pins directly? Do I need to make a d...
[i=s]This post was last edited by paulhyde on 2014-9-15 04:02[/i] Are you still using the built-in component library of Altium Designer? Or a self-built library? Are you worried about the lack of Step...
I originally planned to send 7E 01 01 00 01 01 04 0D. The original program was: Call: SendString_PH_START("7E 01 01 00 01 01 04 0D"); Definition: void SendString_PH_START(uchar *ptr) { for(int j=0;j<2...
There is a group of "silly kids" who are always at odds with themselves. After busy work, they often sit in front of their desks to disassemble and disassemble. The smoke from cooking is commonplace. ...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
UDN2916LB is a two-phase stepper motor bipolar driver integrated circuit launched by SANKEN. It can drive dual-winding bipolar stepper motors and is particularly suitable for controlling dual-step ...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
With the development and application of liquid crystal display technology, more and more developers want to use liquid crystal screens to display Chinese characters in the instruments and equipment th...[Details]
3. Driving circuit design
The power driver uses a field effect tube, which is a field-controlled device with a capacitance effect between the gate and source, so it has high requirements for t...[Details]
1. Introduction
According to the definition of the International Electrotechnical Commission (IEC) and the American Instrument Society (ISA), fieldbus is a digital, two-way transmission, multi...[Details]
1. Introduction
PROFIBUS is an international, open asynchronous serial communication standard, which is widely used in manufacturing automation and process automation, buildings, transportatio...[Details]
PCB Design
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