If you want to refresh the entire screen of the device, use the function InvalidateRect. The first parameter needs to specify the handle of the window to be refreshed. However, the screen window is no...
I used board cutout to make a PCB screw hole, and used keep out to make the board frame. When I checked the board shape and screw holes in the 3D view, there was no problem. However, when I exported t...
[b][size=5][color=#ea3e4b][color=#ea3e4b][url=https://www.eeworld.com.cn/mcu/article_2016111531434.html]The MSP430 family continues to expand with DSP-enabled products[/url][/color][/color][/size][/b]...
[i=s]This post was last edited by a genius boy on 2015-5-20 12:37[/i] I made a USB amplifier using PCM2912A, OPA1632 and TPA3124. Here's a picture of the device, taken with my old broken phone. The pi...
I have been debugging the I2C of 28335 these days and found a very disgusting problem. I set the I2C to the master device sending mode and sent a 0x1e instruction. There is nothing connected to the ou...
[i=s]This post was last edited by littleshrimp on 2015-12-11 14:32[/i]It looks like it was drawn with candence, but I have never used it, so I don’t know if it can be converted to Altium Designer’s fo...
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]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[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]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[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]
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]
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]
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]
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]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[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]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[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]