In "Investigating Things to Gain Knowledge 06 - The Water-Dropping Generator", we introduced the water-dripping generator invented by British scientist Kelvin in 1867. Figure (01) is a schematic diagr...
Let me introduce to you the UWB promotion organization - Fira Alliance. In order to promote UWB globally, in August 2019, NXP, Samsung, Bosch, Sony and other companies formed the FiRa Alliance (fine r...
lvgl has been successfully ported before, and can be used to draw some HMI interfaces. Today, an LVGL QR code library is implemented to display some data through QR code. The QR code library can also ...
Overview
The RS485 interface forms a half-duplex network, adopts a combination of balanced drivers and differential receivers, uses shielded twisted pair transmission, and has strong resistance to com...
As shown in the picture, is the Q3Q4 circuit drawn incorrectly? A push-pull circuit should not be drawn like this. Today I saw an old professor drawing it like this, and I was afraid to ask, isn't Q3Q...
1. Hardware Introduction
RVB2601 has built-in the high-performance and secure WiFi4 chip W800 from Lianshengde. W800 is connected to CH2601 via the SPI port (blue frame line) as shown below:2. Softwar...
This article introduces a PC-based oscilloscope reference design. The MAX1393 ADC and MAX1396 EV (evaluation) board are highlighted, and the circuit diagram, software, and software function descrip...[Details]
With more than 3,000 certified products in the ecosystem, the new Z-Wave Plus v2 certification ensures even stronger interoperability, security, and ease of installation for end users. To drive the ...[Details]
Program operation chart: Simulation schematic diagram: Part of the program: #include "reg51.h" #include "intrins.H" //8-step stepper motor pulse sequence //unsigned char steps = {0x77,0x33,0xbb,0...[Details]
Introduction: This paper proposes a high-precision composite pulse uniform density modulation (CPSM) induction heating power supply. The AVR microcontroller and hardware circuit work in coordination ...[Details]
In terms of the installed capacity of lithium iron phosphate power batteries, CATL and BYD have been winning and losing. So far this year, CATL ranked first in January, February, June, July and Aug...[Details]
Today, I followed Guoqian and got to know the whole process of bare metal development of ARM under Linux. Now the summary is as follows:
First of all, let's explain why we need to learn bare metal de...[Details]
1. Systematic error refers to the regular error caused by the measuring instrument or method, which is reflected as the deviation from the true value, such as instrument zero error, annual change err...[Details]
What
is
a fuel cell?
All fuel cells work on the same basic principle: converting the chemical energy of hydrogen into electrical energy. Several different types of fuel ce...[Details]
On October 30, Changdian Technology released its third quarter report for 2020. The company achieved revenue of 18.763 billion yuan in the first three quarters, a year-on-year increase of 15.85%; the...[Details]
0 Introduction
The development of road maintenance machinery in China started late. For a long time, the electrical control technology of tamping vehicles in China has relied on foreign imports. Due...[Details]
DS18B20 is the most commonly used to learn a new development tool. The programs are similar. The main thing is to pay attention to the delay in the timing and the correct instructions. Record them her...[Details]
A long time ago, I saw a famous embedded forum where a master used a single-chip microcomputer to make a WAV player. I thought it was great and had the urge to make one, because MP3 players were ...[Details]
In recent years, with the continuous deepening of the information reform of the railway system, network technology has been widely used in the daily production and management of the railway system....[Details]
1 Introduction
Semi-trailer refers to "a non-powered road vehicle that needs to be towed by a car for normal use due to its design and technical characteristics, and is used to carry people and go...[Details]
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