Entrusted by a friend, I'm looking for a mobile power solution, 5V1A output, charging 5V1A, red light for charging status, green light when fully charged, output indicator light, with lithium battery ...
Continuing from the last review, the link is as follows:
https://bbs.eeworld.com.cn/thread-1221177-1-1.html
These are skipped for new construction projects.
Prepare the serial port assistant:The inter...
I need to make a small application with 24 counters. The structure of each counter is the same, but the initial value is different. Is there any way to easily assign different initial values to the sa...
[i=s]This post was last edited by ddllxxrr on 2014-4-3 15:57[/i] Everyone is going to be dismissive again. Who hasn't seen a flashlight? I feel the same way about this one, but I received this one a l...
To be honest, I think it is a good idea to use C to write microcontroller programs, not to mention the portability. Although assembly language is very suitable for registers and has a fast processing ...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
introduction
The core features of mobile value-added service products are mobility, immediacy and personalization. Mobile value-added services are a new service mode that is rapidly developing...[Details]
The battery and its management system are one of the key technologies of electric vehicles. In the past few years, most companies have encountered embarrassment in the development of electric vehic...[Details]
The cruise control system (CCS) of a vehicle is also called a constant speed driving system. It is an electronic control device that uses advanced electronic technology to automatically adjust the ...[Details]