2.3.3. Deep Sleep...................................................................................................................................... 14
I bought the card and my eldest brother is using it. He came back from Shanghai a few days ago and praised the card for being so useful. I borrowed the card these days to try out 3G myself. I am no lo...
Type instructions in the hyperterminal to control the microcontroller (actually, it is the routine C1 on the official website with some improvements). Now I want to add a function, which is to type ch...
I am a novice and am writing a wince keyboard driver. I have a question: how can I implement the function of a mobile phone keyboard, where the first press is a number, the second press is a letter, a...
When I was in preschool, the teacher asked us to memorize a topic: the complement of a one-digit number. For example, the complement of 1 is 9, the complement of 2 is 8... I didn't understand it at th...
[size=4]1. Loop Stability Evaluation Index [/size] [size=4] [/size] [size=4]The indicators for measuring the stability of the switching power supply are phase margin and gain margin. At the same time,...
Can any expert give me a serial communication program based on AT91SAM7X256 developed on IAR platform? I just started to contact it and I don’t understand it very well. The simpler the code, the bette...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
The most important components of new energy electric vehicles are power batteries, electric motors and energy conversion control systems. The power battery must achieve high performance such as fas...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]