I just bought a sim300 module yesterday. I can send Chinese and English text messages, but I can't make calls. When I use my mobile phone to dial the number on the sim300, it prompts that it cannot be...
Many netizens who are new to 51 MCUs have this question: What is AT89S51? Books and online tutorials all mention 8051, 89C51, etc.! Have you ever heard of 89S51? ! Here, beginners need to clarify a ...
The actual measurement function of the sampleis used to detect the resistance of Rx (the resistance will change with temperature).The output voltage will change with the resistance of Rx.This circuit ...
[i=s]This post was last edited by dcexpert on 2016-6-14 22:07[/i] There are 3 empty PCBs and 3 boards without MCU and crystal left in the last MicroPython event, a total of 6 boards, which can be prov...
I installed quartus11.1, and my system is XP, but there is no nios hardware option, so I can't do online hardware simulation. The Internet says to run in compatibility mode, but I already have XP syst...
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[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]
The biggest advantage of Profibus is that it is guaranteed by the stable international standard EN50170 and has been proven to be universal in practical applications. It has been widely used in man...[Details]
TMC428 is a stepper motor motion controller from TRINAMIC. It can reduce the workload of motor control software design and development costs. The 3-axis stepper motor drive control system based on ...[Details]
The programmable controller directly controls the stepper motor, which can significantly reduce the cost of the control system of the modular machine tool automatic production line. The article int...[Details]
With the rapid development of information technology represented by computers, semi-physical simulation technology plays an important role in many military and civilian fields such as aerospace and co...[Details]
1. Why do we need to do electromagnetic compatibility design for products?
Answer: To meet product functional requirements, reduce debugging time
,
make products meet the requirements o...[Details]
1 Introduction
When studying electronic courses such as "Electronic Circuits" and "Signal Processing", college students only understand the real signal characteristics in theory. They cannot r...[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]
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]
After removal, the robot uses an NI 1722 smart camera to randomly inspect for surface defects such as cracks, dents, scratches, and machining marks on the surface.
challenge:
...[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]
Introduction
When manufacturers use microcontrollers for product development, they are concerned about the confidentiality of their codes and data. Considering the time and effort users put int...[Details]
Keil C51 Common Function Modules Instructions
Description
This document includes the description of the clock interrupt, communication and keyboard scanning modules (see the attached sourc...[Details]
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