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...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[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]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[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]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
The ARINC429 bus is one of the most commonly used communication buses between various subsystems of avionics. As the "skeleton" of modern avionics systems, once the bus system or the attached airbo...[Details]