At 5 a.m. Beijing time today, the U.S. Department of Commerce's International Trade Commission (ITC) made a final ruling on the 337 investigation against DJI: no ban would be issued.In response, DJI's...
[i=s] This post was last edited by fish001 on 2018-11-4 15:12 [/i] The so-called SPWM means that the pulse width in PWM changes according to the sinusoidal law. According to the sampling theory: the n...
[i=s] This post was last edited by ljj3166 on 2018-9-20 16:54 [/i] I can’t stand the constant lighting, so I’ll at least set a few buttons to start.This is the script USER_LED tested last time. It tur...
Today I saw a colleague using a relay control circuit. The relay is external, with a freewheeling diode inside, and the control circuit is open-drain output, as shown in the figure below. There is one...
[i=s]This post was last edited by dcexpert on 2016-6-9 14:07[/i] Today I found that javascript can be run on NUCLEO-F411. Actually, there is a NUCLEO-F411 version of espruino. I tried it briefly and i...
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[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]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[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]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[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]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[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]
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]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
Talking
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