Some time ago, I saw several netizens encountering problems when doing I2C. I recently took some time to learn. Here are some places in the routine that are prone to errors. #define I2C_SLAVE_ADDR 0x5...
For single-chip microcomputers, GPIO is often used. Here, an oscilloscope is used to test the IO flip rate to see how fast it is.
The manual gives some characteristics of GPIODirectly flip GPIO progra...
1. In the newly created PCB, press the "O"-"O" (Option-color) shortcut key to set the color of each layer of the PCB: Three principles for setting layer color: ① Close to nature and looks comfortable;...
The South Africa World Cup ended in July. Beijing was scorching hot and hot like a sauna. There were heavy rain and typhoons in the south, west and northeast. Embedded and "spygate" were hot topics in...
I'm planning to make an oscilloscope recently, but I can't think of a good way to display the waveform on 12864. Has anyone done it before? I hope you can give me some advice. Thank you~~~~...
[i=s]This post was last edited by buruno on 2017-9-22 09:07[/i] [align=left][color=#000000][size=4][b](1) [/b][b]Title of the work: Health Assistant[/b][/size][/color][/align] [align=left][color=#0000...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
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]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]