Regarding mobile phones and tablets, I have read a lot of Baidu posts and review posts on the Internet. I have analyzed the major brands from the perspectives of CPU, size, screen, battery, software, ...
I changed the pin definition but it still doesn't work, and then I connected the ground wire. I tried adding a power supply but it still didn't solve the problem. I hope someone can give me some advic...
I am currently working on a sensor project. The load capacity and distance of the RS485 communication are not satisfactory. I found a chip called PB620. The manual says 256 slave nodes and 3000m dista...
Event details: TE Prize-giving Event | How to effectively respond to current challenges in the field of test and measurementEvent time: From now until September 30, 2020Activity processStep 1: Click [...
This project can basically be divided into the following units:
Two-way weighing unit using AD7190
Two 485 communication channels
Input and output unit Optocoupler isolationCPU UnitBecause the weighin...
This work is designed with STC15F104W MCU and OLED12864 (IIC), and it is better to match the video uploaded by B station. Search for Thermohygrometer based on DHT11 (UP Lingjing Qinghe) on B station ...[Details]
Introduction: 3.3V power supply, IO port supports up to 5V, provides two interfaces, one is the interface that can be connected to the processor in three different ways: 8, 16, 32, and the other...[Details]
In the use of single-phase motors, capacitors are a common auxiliary starting device that can change the phase difference of the circuit so that the motor can start. The size of the capacitor shoul...[Details]
Recently, at the Capital Markets Day 2020 MDG Department Summit held by STMicroelectronics, STMicroelectronics CEO Jean-Marc Chery introduced various information including STMicroelectronics' current...[Details]
At present, two methods are generally used in the research and development of H.324 systems: one is to develop a pure software H.324 system, that is, a PC-based system; the other is to use a progra...[Details]
In previous articles, I mentioned that microcontrollers are very simple devices in the electrical field. From the outside, they are just a chip with many pins. Inside, they are a bunch of registers. ...[Details]
It seems that we have mentioned pull-up resistors and pull-down resistors many times before. What kind of resistors are considered pull-up resistors and what are the functions of pull-up resistors? A...[Details]
OFweek Cup 2022 China
Robot
Industry Annual Awards (abbreviated as OFweek Robot Awards 2022) is jointly organized by OFweek, China's high-tech industry portal, and its authoritative robo...[Details]
Many users don't understand why they need to use an optical power meter to test optical loss after testing OTDR? Doesn't OTDR have the function of testing optical fiber loss? What is the difference b...[Details]
In the previous lesson Source Files (.c/.h/.s), Pi Ziheng systematically introduced source files to everyone. Source files are typical input files in embedded projects. So are there other types of ...[Details]
1. DC output module power supply ripple and noise test
The output ripple of the DC output module power supply includes common mode and differential mode. The differential mode ripple includes ...[Details]
The continuous rise in global
energy
prices has forced all industries to seriously consider energy conservation. Among various energy-saving methods, improving the efficiency of switching p...[Details]
Illustrations from Canva This year is a lucky year for new energy vehicles. Under the trend of digital transformation, new energy vehicles have taken the lead in emerging from the shadow of the epi...[Details]
4.3 Letter 1 Introduction
Operational amplifier (op-amp) is abbreviated as op amp, which is named because it was originally used for mathematical operations of analog quantities. It is a dire...[Details]
Control structure block diagram with DSP as the core
Control structure block diagram with DSP as the core
The control circuit is based on DSP, and its structural block diagram is shown in the ...[Details]
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