Motor: Two-wire and four-wire stepper motor driver chip: DRV8812 Change vref to achieve the purpose of subdivision, vref waveform [img=110,0]https://bbs.eeworld.com.cn/forum.php?mod=image&aid=208849&s...
I am using Zhou Gong's template. I use two timers to capture the rising edge and falling edge respectively, and then subtract the two times to get the high level time. However, by setting flags and fl...
Hello everyone, I have a question for you. When reading data from an Oracle database or writing data to a database, how do I use Socket to transmit data? Currently, I put the SQL statements for readin...
As the title says, it seems that CE does not support GetProcessMemoryInfo() API. Is there any other way? I want to display the memory occupied by the current application in real time on the interface...
Of all the specialized amplifiers, perhaps the most commonly used is the instrumentation amplifier. Instrumentation amplifiers are used in many industrial and measurement applications where DC accurac...
Parameters, input DC6-12V, output AC100V, F=3Mhz, output power 10W
The current calculation parameters are as follows:The selected EPC17 core,Np=0.04, considering the actual situation, take Np=2Ts,Turn...
1 Introduction
The multifunctional monitor is a commonly used clinical medical device. It can display the patient's electrocardiogram (ECG), respiration (RESP), blood oxygen saturation (SP...[Details]
Preface
Sleep apnea is a very common sleep breathing disease. According to research, about 24% of adult men and 9% of adult women, or more than 2 million people, suffer from this disease ...[Details]
JTAG Technology Introduction
One disadvantage of shrinking technology is that the complexity of testing small devices increases dramatically. When the board area is large, the board is tested...[Details]
This article first briefly introduces the working principles of current mode and voltage mode and their respective advantages and disadvantages; then discusses the ideal voltage mode using output c...[Details]
Today's mobile phone production testing faces an increasingly complex environment, with challenges of multiple frequency bands and multiple standards, pressure on production test speed, and pres...[Details]
Preface
In recent years, many compact portable electronic products have been developed, such as mobile phones, digital cameras, MP3, MP4, PDA, GPS and DVD, etc. They are not only small in size...[Details]
According to In-Stat/MDR, the number of mobile phones with Bluetooth capabilities will reach at least 300 million by 2005. One of the clear evidences of the increasing adoption of Bluetooth is that...[Details]
Capacitive sensing user interfaces are emerging as a practical and innovative alternative to mechanical buttons in mobile phones. While capacitive sensors can be viewed as a drop-in replacement fo...[Details]
Mesh network architecture and advantages
The Internet is a flat network. The routers that make up the Internet are on the same plane. The mesh network formed by multiple paths between ...[Details]
Focus shift problem
Visible light and infrared light have different wavelengths, so the imaging focus is not on the same plane, which results in a clear image under visible light condition...[Details]
0 Introduction
Electric vehicles are high-tech products that integrate computer technology, communication technology, electronic technology, and new material technology. They have a complex ...[Details]
After more than ten years of technological development and application market cultivation, biometric technology has been applied on a large scale in many application fields. As far as the Chinese m...[Details]
As mobile phones and other portable devices have more functions, there are more potential input and output (I/O) channels for electrostatic discharge (ESD) voltage to enter, including keyboards, bu...[Details]
Facing the global financial tsunami, in order to stimulate the economy, the country will invest 2 trillion yuan in railways during the "Eleventh Five-Year Plan". The large-scale construction of rai...[Details]
0 Introduction
Heart rate is a very important vital information in the human body, and traditional pulse diagnosis, due to its qualitative and subjective nature, affects the accuracy of he...[Details]
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