I wrote another program for 149 to communicate with pca9685, but it doesn't work well. The response signal is detected but there is no pWM output. The program is as follows. Please give me some advice...
This time, we discuss a hot topic related to technology: Are pure electric cars really more environmentally friendly than fuel-powered cars? Why?
I hope the answer is not just a simple yes or no, but ...
This book systematically introduces the failure analysis technology of electronic components and typical analysis cases. The book is divided into the basic part and the case part. The basic part expla...
Hello everyone! I want to use the LT3480 switching regulator, with an input of 25V, an output of 3.3V, and an output current of 0.3A. I checked the table (efficiency vs. load current) and found that t...
Reprinted from: Texas Instruments [align=left][color=rgb(62, 62, 62)]Developing new and creative ways to package our cutting-edge technology is crucial to the future development of semiconductors. [/c...
Fine-tuning capacitors are also called semi-adjustable capacitors, and their capacity is between 5 and 45pF. There are many types, and the most common ones are the following: 1) Ceramic fine-tuning ca...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
Microcontrollers (MCUs), which are widely used in automotive electronics, are rapidly facing time and cost pressures. The main advantage of using MCUs has always been to create high-level system in...[Details]
1. Introduction
Since the 1980s, with the continuous development of automotive electronic technology, there are more and more electronic control units in automobiles, such as electronic fuel i...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
With the continuous improvement of the requirements of intelligent building security systems and the continuous improvement of people's safety awareness, indoor anti-theft has gradually attracted peop...[Details]
1. Principle of displacement angle sensor
The angle sensor is used to detect angles. It has a hole in its body that fits the LEGO axle. When connected to the RCX, the angle sensor counts once ...[Details]
1. Introduction
With the gradual automation and modernization of industrial control systems, fieldbus control systems have received more and more attention and application. CAN bus is currentl...[Details]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
1 Introduction
The Third Steel Plant of Jigang Group is a key investment project of Jigang Group during the "15th Five-Year Plan". It has introduced first-class domestic and foreign advanced eq...[Details]
1. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Microcontroller MCU
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