[i=s] This post was last edited by a media student on 2018-9-9 23:37 [/i] [align=center][font="][color=#9932cc][b]【GD32F350 Urban Youth Family Security Guard】The third post: Human body sensing module ...
On February 8, Huawei has taken a series of actions in response to a series of rumors about the change of senior management and the sale of business of Huawei that appeared in WeChat groups and public...
1 Introduction At present, the number of portable devices such as mobile phones, laptops, wireless drills, digital cameras, MP3 players, etc. is increasing day by day, and there are many kinds of them...
:Sad: Cry some tears and drink some water. The water supply has been cut off three times in the past 10 days. In recent years, there have been droughts. I have gone from being in a rainy area (it rain...
The idea of 37 sensors and modules is widely circulated on the Internet. In fact, there are definitely more than 37 sensor modules that Arduino is compatible with. In view of the fact that I have accu...
Comic: The Principle of Antenna
Mobile 5G device antenna tuning revealed
How much do you know about 5G antennas?
How were antennas invented?
[Practical Tips!] How to choose an antenna? Remember these ...
Actually, I have wanted to write about I2C for a long time, but various things delayed me. I took advantage of the May Day holiday to write this for your reference. I will spend some time to study th...[Details]
WiMAX is the interface standard for IEEE802.16 Ethernet, just like Wi-Fi is the standard for 802.11 Ethernet. In the past two years, WiMAX has become the most popular term in the wireless network indu...[Details]
Hardware Hookup As can be seen from the circuit connection diagram, the negative pole of the LED is grounded, and the positive pole is connected to the output terminal of 74573 through a resistor....[Details]
Instruments that measure fluid flow are collectively called flow meters or flow meters. Flow meters are one of the important instruments in industrial measurement. With the development of industrial ...[Details]
From the perspective of LED packaging development,
LEDs
have two packaging forms: discrete and integrated.
LED
discrete devices belong to the traditional packaging form and are wide...[Details]
Hardware: TQ2440 , USB RT3070 Compilation environment: ubuntu, EABI-4.3.3 provided by TQ, 2010_0203_RT3070_SoftAP_v2.4.0.1_DPA package downloaded from the Internet Configure the compilation...[Details]
1 Introduction
Operational amplifier (op-amp) is abbreviated as op amp, which was named because it was originally used for mathematical operations of analog quantities. It is a direct-coup...[Details]
Function: Research content: This topic uses the microcontroller as the core and uses C language to develop a fingerprint electronic code lock. The system is planned to design the schematic diagram on...[Details]
Jucan Optoelectronics released its 2018 performance report. The company's operating income was 558.7189 million yuan, a year-on-year decrease of 10.02%. The total profit was 8.6189 million yuan, a ye...[Details]
The volume control of dual-channel audio generally uses a double potentiometer. The two outputs of the potentiometer must be synchronized, that is, the output voltage must be consistent, otherwis...[Details]
Recently, according to official news from Tesla, the Model 3 Standard Range Upgrade Edition made in China will arrive at Tesla offline stores today, and consumers can make an appointment for a test d...[Details]
The Android 11 Beta version is now online. In addition to Google Pixel models, the Xiaomi 10 series can also be upgraded. On July 15, MIUI 12 customized based on Android 11 was quietly launc...[Details]
1 Classification of
switching power supplies
Switching power supplies are divided into two types: isolated and non-isolated. Here we mainly talk about the topology of isolated switching power supp...[Details]
Infrared electronic fence alarm has been widely used in various security occasions. It has the advantages of simple structure, low cost and good reliability. According to the needs of families, a s...[Details]
The advancement of trends such as automotive intelligence, autonomous driving, electric vehicles/automotive electronic functions are making cars safer, more comfortable, environmentally friendly and ...[Details]