In the era of social media, personality and appearance are emphasized, and the functions and designs of small household appliances are constantly upgraded to keep up with the trend of the times. Wheth...
[i=s]This post was last edited by gs001588 on 2022-6-27 01:04[/i]2. Temperature and humidity sensor DHT11 test, serial port print resultsBased on the previous post, this post completes the test of the...
Hello everyone, after Kicad finished drawing the PCB and did the rule check, this happened: the pads are too close to each other. How to solve this problem?...
Let me explain a few basic points first:1. The idea of low power consumption. Many people don't understand this concept. Let me explain this first. If you understand this, many things about BLE will b...
[i=s]This post was last edited by Beifang on 2021-11-30 12:09[/i]1. Chip Function
The main features of FM33LG0 include wide voltage range of 1.65~5.5V, maximum main frequency of 64Mhz, 64/128/256KB Fl...
This circuit can light up two lights in a cycle. This circuit is an astable multivibrator composed of a transistor (NPN9014, DC magnification should be 200), a red light-emitting diode and R, C ...[Details]
Fans are general-purpose machines, which are widely used in various sectors of the national economy. Fans are widely used in ventilation, dust removal and cooling of factories, mines, vehicles, b...[Details]
An artist's conception of space-based solar power. Image credit: European Space Agency
The European Space Agency recently released an artist's concept of "space-based solar energ...[Details]
The worst-case database provides a unified reference source to ensure that WCCA uses the same data source for any project. Obviously, it is not practical for different design engineers to develop the...[Details]
Samsung has previously launched a number of foldable smartphones and is also the first company to develop a 108MP mobile camera sensor. Now, a newly released patent reveals that Samsung is using...[Details]
According to foreign media reports, the National Institute for Materials Science (NIMS) of Japan and Tohoku Gakuin University have developed a boron-doped anisotropic samarium (Sm, Fe0.8Co0.2) 12 fil...[Details]
Through the EP2C20Q240 device and LPC2478 processor, the working principle and timing characteristics of the external parallel bus of the ARM application system, as well as the principles of bidire...[Details]
Abstract: A new type of inductive sensor device is studied, focusing on the working principle and basic structure of the sensor, the block diagram design of the aperture recognition system, experiment...[Details]
1. Mitsubishi inverter part
FR-A7NP is a communication option for FR-A700 and FR-F700 series inverters to perform Profibus-DP communication.
FR-A7NP E-kit is a communication option ...[Details]
Since the release of the Apple Pad in 2010, it has set off the entire tablet market. After more than four years of explosive growth, the tablet market began to turn downward in 2015. By 2019, the glo...[Details]
Requirements: Use a single-chip microcomputer to implement the function of an electronic password lock. First, set the password from 0-f, any number of digits (as long as it does not exceed ten digit...[Details]
1. Introduction
In daily life, we often encounter various "reflective" phenomena, which make us have certain obstacles when observing things or taking pictures. For example: when watching anim...[Details]
On December 28, according to Qichacha data, Huawei recently established a wholly-owned subsidiary named Huawei Precision Manufacturing Co., Ltd., with Li Jianguo as the legal representative and a reg...[Details]
1. Rated impedance and impedance characteristics The rated impedance of a speaker system is generally determined by the rated impedance of the speaker unit used. The impedance characteristics of a spe...[Details]
Power technology
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