Still the same news, a Japanese student returned to Shanghai and stabbed his mother who came to pick him up at the airport several times. Today I saw another report, a video shot by a passerby at the ...
EEWORLD has 5 new LinkNode development boards, which have arrived~ Take a sneak peek:Name: LinkNode Self-introduction: I am a wearable device prototype development board that supports BLE4.0 and is fu...
When I use the computer parallel port to communicate with the 51 single-chip microcomputer, I adopt the EPP1.9 mode, and I find that nWait=1 is always on. I don't know why. Is there any senior in this...
How to extract L3 signal from the air interface, what module should be used? ? Although the TC35 series chip can process the GSM protocol stack, I don’t know whether it can obtain air interface messag...
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
introduction
When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[Details]
With the popularity of digital appliances, rechargeable batteries can be seen everywhere in people's daily lives and have become one of the indispensable daily necessities.
This article gives ...[Details]
0 Introduction
PROFIBUS is an open digital communication system with a wide range of applications, which has been included in the international standards IEC 61158 and IEC 61784. Since the gen...[Details]
Microcontrollers are something that many people want to learn about and are concerned about. In most websites, the hardware requirements are generally as follows:
1. You need a computer, prefer...[Details]
1. Introduction
With the continuous development of modern urban construction, infrastructure and real estate are becoming increasingly prosperous, and the quality requirements for construction ...[Details]
0 Introduction
In microwave, radar, radio and television, and communication systems, the problem of coupling RF power is often encountered. A directional coupler is a directional power divide...[Details]
When programming in C and assembly, there are interface issues between variables and functions in C and assembly.
Variables defined in a C program are put into the .bss area after being compile...[Details]
1. Project Introduction
Energy consumption is an important controllable part of the cost of enterprise products. Reducing energy consumption is an important way for enterprises to reduce costs...[Details]
In the 8051 system, the data pointer DPTR is a special 16-bit register used to address the 64 KB XDATA or CODE space. It is usually used as a 16-bit pointer to a constant table. Dual data pointer...[Details]
introduction
In modern industrial control and some intelligent instruments, more and more places need to use dot matrix graphic displays to display Chinese characters. The usual way to display...[Details]
The MCS-51 microcontroller has multiple interrupt sources. Taking 8051 as an example, there are 5 interrupt sources, two external interrupts, two timing interrupts and one serial interrupt. In this...[Details]
Design Considerations
After the long-term deployment of smart meters (automatic meter reading infrastructure), a two-way communication will be established between the utility and the consumer. The ...[Details]
Microcontroller MCU
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