1. Special diodes1. Fast recovery diode (FRD)----The reverse recovery time of the fast recovery diode is generally a few hundred nanoseconds, the forward voltage drop is 0.6V~1V, the forward current i...
Based on the RVB2601 development board, the basic OLED driving functions are realized.
Supports point, line, and rectangular pattern drawing, and can display 8*12, 8*16, 16*24, and 16*24 ASCCII sizes....
[i=s]This post was last edited by kit7828 on 2022-5-18 20:10[/i]In the previous environment construction, the GPIO lights have been turned on. In hal_entry.c under src, you can see the pin definitions...
I'm a newbie and need help. When I'm using the RL78 G14 development board, I want to achieve press a buttonADC four-way samplingadd CRCfive sets of data are sent through the serial port. Simply put, p...
https://nodemcu-build.com/
It claims that users can select the modules they need, and then the website will compile the firmware for you.
1. This is for nodemcu, that is, for esp8266. esp32 is still i...
1. The alarm light between a certain current phase jack is on and there is an alarm sound: the current of this phase is open circuit or the load exceeds the actual output range. Check the wiring and ...[Details]
1 Introduction
With the development of image processing technology and embedded systems, the use of embedded systems for image processing has made applications such as video surveillance, video tel...[Details]
The design principles of DCS and PLC are quite different. PLC is developed from the principle of relay control. It stores instructions for executing logical operations, sequential control, timing, ...[Details]
Several technical issues in achieving this have also been the subject of discussion among engineers and experts in the industry. This article will discuss the following aspects: 1. What is digital...[Details]
A "cloud" floated over the horizon, inspiring the spirit of power grid enterprises and starting a real business. Whether it is the "ubiquitous power Internet of Things" of the State Grid or the "Di...[Details]
1.
Impedance calculation
All audiophiles with basic knowledge know that the square of the ratio of the number of turns of the primary and secondary sides of the transformer coil is equal to the...[Details]
As we all know, the screens for laser TVs are usually called short-throw anti-glare screens, which are divided into two types: one is the Fresnel structure and the other is the black grid structure. ...[Details]
What exactly is technological expression? Most manufacturers now think of big screens! Big screens! Big screens! Especially Tesla, which uses a single big screen to solve all interior decoration prob...[Details]
Introduction: This paper introduces the working principle and structure of a campus power-saving control system based on the power line carrier technology of 51 single-chip microcomputer. The direct ...[Details]
The sudden outbreak of the epidemic caused Apple's WWDC developer conference to change from offline to online, and the official time was also officially announced. Apple announced that it will hold...[Details]
Due to the ban on Huawei by the United States, Trump's "promotion" of Huawei in international occasions, and the overwhelming coverage of domestic and foreign media, Huawei has become famous, making ...[Details]
What is the reason for the unstable speed of the inverter?
There may be many reasons for the unstable speed of the inverter, the most common ones include:
Load change: When the load chang...[Details]
During the programming process, different CPUs have different meanings of data types, so you must pay attention to the definition and conversion of the corresponding variable data types, otherwise un...[Details]
Let's summarize the method of judging whether a MOSFET is good or bad. The basic principle is the working principle of MOSFET. Take IRF530 as an example.
1. Digital meter (+)-- DRAIN, (-...[Details]
High voltage cabinet and low voltage cabinet are two indispensable components of the power system, and there is a close relationship between them. This article will introduce in detail the function...[Details]