What do the numbers in the brackets mean? [3:0] and [11:4] What is 11~4?This content was originally created by QWE4562009 , a user of EEWORLD forum. If you want to reprint or use it for commercial pur...
I am very grateful to the administrators of the forum. When I mentioned that it was too troublesome to search for 8 people one by one to invite them, they suggested making a list of invited people and...
Activity details: [Allwinner heterogeneous multi-core AI intelligent vision V853 development board]Updated to 2022-12-30Evaluation report summary:@IC CrawlerAllwinner heterogeneous multi-core AI intel...
[size=4][color=#000000]Sometimes it is inconvenient to carry a mobile phone, but you want to know the time. In this case, you can use a buzzer to make an audio time reminder, which will send a reminde...
[size=4][md]## Preface The previous article briefly introduced how to add a custom BLE service. Combined with the official demo, I think you should have a deeper understanding. The UUID here is 128 bi...
I'm learning STM32CubeMX recently. When I generate code, an error occurs.I click to download, but it always fails to download. Can an expert tell me how to solve this problem? Thank you!...
A voltage supervisor is an integrated circuit that can be used to reset the processor in low voltage conditions to prevent processor malfunction and ensure safe power-off of the system. This article i...[Details]
AVR microcontroller is a RISC microcontroller launched by Atmel in 1997. RISC (Reduced Instruction Set Computer) is relative to CISC (Complex Instruction Set Computer). RISC does not simply reduce in...[Details]
Software Testing Workflow Diagram
There are five versions of the software during the development process, namely Base version, Alpha version, Beta version, RC version, an...[Details]
Weak current testing requires drive protection (Driven Guard)
Unique to Keithley's measurement equipment, the introduction of a guard loop minimizes the potential difference between the test lead and...[Details]
Redmi's official Weibo account announced a good news today that the Redmi K30 Pro series won multiple championships. Specifically, the Redmi K30 Pro zoom version won the Android mobile phone single p...[Details]
The
power supply
is a wide voltage input flyback converter with 12 V and 1 A output, which uses the TNY278PN device from the TinySwitch-III series. Since many functions are already integrat...[Details]
LED
is a
photoelectric
device. During its operation, only 10% to 40% of
the electrical energy
is converted into light energy, and the rest of the electrical energy is almost c...[Details]
Nowadays, the use of virtual instrument technology in test applications has become mainstream. Most of the test industry has accepted the concept of virtual instrument technology or tends to adopt vir...[Details]
Look around at the electrical appliances around you: desktop computers, laptops, printers, monitors, modems, stereos, TVs. Do they all really need 220 volts AC power? Then look at your power strip....[Details]
1. Screw compressor
Screw compressors are also called screw compressors. In the 1950s, oil-injected screw compressors were used in refrigeration equipment. Due to their simple structure, few w...[Details]
Wideband amplifier with 80DB logarithmic compression characteristics
Function of the circuit
The circuit using the logarithmic conversion characteristics of transistor IO and VBE can only proc...[Details]
Optical
Sensor
is a device that converts light signals into electrical signals. It plays a vital role in automated production. With its excellent performance and wide applicability, Leuze o...[Details]
According to Taiwan Strait Net, there has been latest news on several key projects in the integrated circuit field in Haicang, Xiamen. Tongfu Project: Fire inspection was completed on September 30,...[Details]
1 Introduction With the development of science and technology, embedded operating systems play an important role in more and more fields, and have become one of the symbols of product technology level...[Details]
Recently, the 2.1MW/4.2MWh energy storage power station built by Hitech Smart Energy in Guangzhou City, Guangdong Province was successfully connected to the grid and put into operation. This en...[Details]
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