The performance of antennas, including those for mobile terminals, is closely related to their size. When discussing antennas, the standardized electrical length, which is based on the frequency wavel...
[i=s]This post was last edited by johnrey on 2019-1-21 16:07[/i] [size=14px]Although the last round of sensor evaluation was not very smooth, and there are still many problems left unresolved, we fina...
[font=宋体][size=4] [/size][/font] [font=宋体][size=4] When reading integrated circuit manuals, for I/O ports, some device manuals will say that the port can have built-in pull-up/pull-down resistors. Gen...
The same pin, STM32 is set to input mode. The oscilloscope shows a high level, but the microcontroller pin reads a low level. Has anyone encountered the same phenomenon? What is the reason?...
Signal and System Southeast University Mengqiao : https://training.eeworld.com.cn/course/4243Through the study of this course, students should be able to master the basic theories and methods of basic...
Waiting for the bus is an annoying thing. This process will constantly challenge our patience. Maybe your hard work will only result in the bus passing by you, or maybe your patient waiting will on...[Details]
A new generation of young consumers has changed their decades-old audio-visual habits. Previously, headphones were only worn when needed. The introduction of true wireless (TWS) earbuds has changed t...[Details]
Definition of Bandwidth Bandwidth has many application areas. It can be used to identify the data transmission capacity of signal transmission, the amount of data passing through the link per uni...[Details]
We have made many Colpitts crystal oscillators, and the output waveforms are generally not very sinusoidal. For example, the waveform in this picture is pretty good-looking. So, how to get beautifu...[Details]
专为 Mac 设计的极简风浏览器 Opera 今天更新了对 M1 Mac 的原生支持，带来了显著的速度提升。 With this version, the Opera browser runs twice as fast on M1 Macs as the previous generation browser, for smoother and faster browsing perf...[Details]
Shanghai, China, April 12, 2023 – Element14, a global distributor of electronic components products and solutions owned by Avnet, released the 7th issue of "eSelect". With the theme of "Leading Indus...[Details]
Bare wire testing is essential With the advancement of technology, you might think that simple test equipment based on bare wire (two or more conductors in a sheath that carry power and/or low-sp...[Details]
When learning a new processor, the first program must be to light up the LED. It allows us to quickly and clearly understand the program structure of a processor. Learning 32 is no exception. First, ...[Details]
On April 26, Xixian New District Fengdong New City signed an investment agreement with Shenzhen Shenghong Electric Co., Ltd. Yang Renhua, Secretary of the Party Working Committee of Xixian New Distric...[Details]
By manually inputting single pulses to the /INT0 of the 8051 microcontroller one by one, an interrupt is requested to the microcontroller. Each time the microcontroller interrupts, it outputs 55H, AA...[Details]
This article tells a simple example and explains "compiling dynamic libraries" very well. 1. Preparation 1. Use oracle VM Virtualbox software to install the Ubuntu virtual machine 2. Download th...[Details]
Working principle of the circuit: The light-controlled street lamp circuit consists of a power supply circuit and a light-controlled circuit, as shown in the figure. The power supply circuit consi...[Details]
General purpose of startup code 1. Initialization of heap and stack; 2. Vector table definition; 3. Address remapping and transfer of interrupt vector table; 4. Initialize the fracture with s...[Details]
A multimeter is a commonly used measurement tool that can be used to measure parameters such as voltage, current, and resistance. However, for the measurement of temperature sensors, a multimeter m...[Details]
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