Hello everyone, I have a chip connected to the i2c bus. I use the i2c read/write interface to write data to a certain area of the slave device, and then read it out to see if it has been written. But ...
[size=4] In some isolation, it means electrical isolation between input and output, input and ground, and output and output. The purpose of isolation is to protect the safety of the system. When there...
1. Error. No matter how good the quality of the instrument is, there is always an error between its measured value and the actual value. Therefore, "error" is the standard for measuring the accuracy o...
Is there anyone who is familiar with PCB antenna design? I want to use a PN532 chip to connect a 13.56Mhz antenna and integrate it with the PCB board, but I don’t know how to draw the antenna, and I d...
I only added a rts.lib library, and then used pow(2,4) to calculate the fourth power of 2. The result is -1 when I watch it on the emulator. What's going on? The same function is correct on the arm....
The Year of the Rabbit is here. I wish you all a salary increase as fast as a rabbit runs, red envelopes as many as a rabbit's fur, career development as high as a rabbit jumps, and a mood as happy as...
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]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
1. System Structure
This system is a simulation system of indoor air-conditioning temperature/humidity control system. The data acquisition and control center collects temperature/humidity...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
Against the backdrop of global warming, energy conservation and emission reduction have become a global hotspot and focus, which has also sounded the clarion call for the take-off of the LED lighti...[Details]
Power supply is often the most easily overlooked link in the circuit design process. In fact, as an excellent design, power supply design should be very important, which greatly affects the perfor...[Details]
Embedded System
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