Last week I saw a promotion on TB that there was a special offer for solar lights, less than 4 yuan with free shipping, so I bought one and opened it to take a look.The overall appearance is mainly a ...
The first step of the test is to light up the LED light, which has almost become an unchanging step. I was going to post the lighting and unboxing together, but I encountered the problem of not being ...
Through the study and practice of the 2.4G NRF24L01 wireless module and the reference to the Chinese and English manuals of NRF24L01, the following summary is made. If you want to have a deeper unders...
Hello~ Hello everyone~ The manager is here to send information again~~ Come and take a look at the latest situation~~New activities online:1. Anxinke Bluetooth Development Board PB-02-Kit
Activities i...
[i=s]This post was last edited by lanhua on 2022-8-30 13:22[/i]Fully automatic electric fanParticipate in the "Hands-on Learning about Power Supply Season 1: DIY small fan, fan all summer!" of "Electr...
On October 14, State Grid Corporation of China released the first Ubiquitous Power Internet of Things Development Outline "Ubiquitous Power Internet of Things White Paper 2019" (hereinafter referre...[Details]
0 Preface
In modern electronic systems, especially for some logic chips or microprocessors, if the voltage provided by the working power supply exceeds the normal power supply voltage range, s...[Details]
Function of the circuit
If you want to use the 555 chip to form a long-time timing circuit, you can use a high resistance value for R to lengthen the CR time constant. However, ...[Details]
On September 26, CATL and Chint Group signed a strategic cooperation agreement in Hangzhou. Zeng Yuqun, Chairman of CATL, and Nan Cunhui, Chairman of Chint Group, attended and witnessed the sig...[Details]
First, the functional characteristics of hydrochloric acid flow meter 1. The measurement is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity. 2. There are...[Details]
Completion requirements 1. Realize the timing of minutes and seconds. 2. Use buttons to control the adjustment of minutes and seconds (two buttons control the increase of minutes and seconds respecti...[Details]
introduction
With the development of communication technology, more and more wireless access technologies have emerged. In order to solve the intercommunication and compatibility between different ...[Details]
Abstract: Near-bit engineering parameters include drilling pressure, torque, temperature and annular pressure, etc. The accurate measurement of these parameters while drilling is of great significa...[Details]
This paper introduces a USB interface design based on DSP, and explains the hardware design of the interface, the interface operation principle, the software design process, and the key points of i...[Details]
The automobile engine is a device that provides power for the car. It is the heart of the car and determines the car's power, economy, stability and environmental protection. According to the differe...[Details]
1. The essence of AT89S51 replacing AT89C51
Microcontrollers compatible with the MCS-51 core series are still the mainstream products used (such as the currently popular 89S51, the discontinued 89C51...[Details]
Graphics are an important part of virtual instruments. Labview provides users with rich graphic display functions and provides many display controls for use in the graphics sub-template, as shown in ...[Details]
Abstract: Industrial applications often require multi-quadrant operation. Zero-voltage switching (ZVS) technology can significantly reduce the power loss when the switch turns from off to on. Ho...[Details]
Switching power supply circuit composed of UC3842
The switching power supply circuit composed of UC3842 is shown in Figure 6, where T is a high-frequency transformer. When the machine is just turne...[Details]
With the development of information technology and the deepening reform of medical and health care, the implementation of the National Golden Health Project has greatly accelerated the process of hosp...[Details]
MicroPython Open Source section
京公网安备 11010802033920号
EEWORLD
