5V power supply, the voltage can only reach 1.7V, and any output mode setting does not work. Later, I added a 10K pull-up resistor and the high-level voltage reached 5V. What is the reason? Is it rela...
Now I have the hardware but I don't know how to learn it. I learned it by myself, and I also learned C language by myself. I have basically played with microcontrollers but not systems, so I want the ...
Has anyone used it? Please give me the circuit diagram
Seeking principle~
I really don't understand. I looked at it for a long time but still didn't understand how to charge it....
First, why should we pay attention to passive intermodulation?
In the wireless community, the problem of passive intermodulation interference has gained attention due to the performance degradation of...
The U.S. Food and Drug Administration (FDA) points out that home health care is the fastest growing area in the medical device industry. Driven by the increase in average life expectancy, the increasi...[Details]
The latest C language tools allow you to quickly complete the design of algorithm-intensive applications even if you are not proficient in hardware development.
Hardware designers have b...[Details]
Ultrasound systems are among the most sophisticated and complex signal processing instruments in widespread use today. Like any complex instrument, there are many trade-offs to be made in implement...[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]
Abstract: CC2420 is a 2.4GHz RF chip introduced by Chipcon that complies with the IEEE 802.15.4 specification. It is used to develop ZigBee devices and products for PAN networks such as industrial ...[Details]
0 Introduction
One of the basic tasks of machine vision is to obtain image information from the camera and calculate the geometric information of objects in three-dimensional space, so as ...[Details]
1 Introduction
Many test systems require real-time data acquisition while continuously moving. If the test process is discontinuous, or the test position is in front and the acquisition is...[Details]
The four-element infrared detector uses photosensitive elements, and the alarm is triggered only when each detector detects a signal. It has stronger anti-false alarm capability and better detectio...[Details]
0 Introduction
μClinux is an operating system for embedded control. It inherits most of the features of the Linux kernel and is designed for embedded microprocessors without a memory manag...[Details]
Fairchild Semiconductor provides the industry's smallest power management solution FAN5902 for 3G mobile phone and wireless data card designers. This RF power DC-DC converter uses a 12-bump 0.5mm p...[Details]
Today, a new systematic maintenance approach can measure, locate and repair problems in rail and tram tracks in a timely manner. Combining mature railway engineering techniques with advanced techno...[Details]
introduction
SPI (Serial Peripheral InteRFace) is a synchronous serial peripheral interface introduced by Motorola. Due to its advantages such as simple protocol implementation and fast tr...[Details]
1. Introduction
With the rapid development of computer technology, industrially developed countries have invested heavily in the research and development of modern manufacturing technolo...[Details]
0 Introduction
IIR filters are not easy to make into linear phase, but FIR filters can be made into linear phase as long as certain conditions are met. The requirement for linear phase is ...[Details]
In early 2009, many domestic and foreign media reported that the EU was going to ban the sale of plasma TVs. Paul Gray, head of the European Television Industry Research Association, denied this, b...[Details]