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[i=s]This post was last edited by michael_llh on 2016-8-2 09:35[/i] [font=新宋体][size=4] Now everyone should have received the UFUN learning board. In order to facilitate everyone's learning, here we ha...
I recently used 2812 and found two very puzzling problems. 1. I used 18K and 22K resistor divider network to convert 5V TTL signal into 3.3V TTL signal, but it didn't work at all. The low level turned...
Hello everyone, I am an absolute novice and rookie. I used to work in microwave design in Shanghai for more than two years, and then I returned to Dalian due to some family reasons. Dalian is more eng...
The basic principle of pulse width modulation (PWM): The control method is to control the on and off of the switching devices in the inverter circuit so that a series of pulses with equal amplitude ar...
This article is translated from Microwaves101 | Microwave Rules of Thumb, which summarizes some rules of thumb in microwave circuits. The so-called rules of thumb are some rules summarized over a long...
Here we introduce a simple and easy-to-make fun production - magic lamp. The circuit is shown in Figure 1. As long as you hold the magic wand with a permanent magnet in your hand and shake it from bot...
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]
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]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
The data collector of the automatic weather station is generally designed based on a single-chip microcomputer or a PC/104 bus controller. It has the characteristics of good compatibility with PC, low...[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]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
With the rapid development of wireless
digital communication
, more challenges have been raised for integrated circuit design and testing. In the product design stage, in order to ensure
t...[Details]
The above is to use MB1404 as a stereo composite signal transmitter. You can use the internal high-frequency amplifier and oscillator or not! According to my experience, I still recommend beginners...[Details]
The launch of Shenzhou IX is imminent, and Tiangong is welcoming visitors again. Yesterday, Professor Fu Qiang, Vice President of the Institute of Science and Industrial Technology of Harbin Instit...[Details]
0 Introduction
In order to improve the automation control of shortwave transmitters, so that they can automatically process from far to near, the technicians here use the ICS system to complete the ...[Details]
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