How much is a person who knows hardware + PCB design + Linux + FPGA worth? I am preparing to learn Linux and FPGA, and I want to know what the general market price of such a person is...
Last night, I accidentally modified the SWM_FIXED_SWCLK pin, and the lpc824 board became a brick. I would like to ask for your advice. The board SWD pins are SWM_FIXED_SWCLK and SWM_FIXED_SWDIO, which...
Diode limiter circuit
We often see combination circuits of diodes. These five circuits may not have practical significance, but they can be analyzed!
What are the output voltage ranges of OUT1-OUT5? (...
I want to ask if it is possible to put a group of io ports, such as port p0, in an array. It would be more convenient to use for to write a flow light. If so, how should I define the array?...
In the previous articles on digital tubes, we implemented the scanning of digital tubes in a delayed manner, which wastes the resources of the single-chip microcomputer. During the delay process, the...[Details]
This article describes the construction of a bass-reinforced speaker box system that can be used to reproduce music with a heavy bass effect that can be adjusted with a potentiometer.
Mo...[Details]
According to the Science and Technology Innovation Board Daily, the supply chain has reported that benefiting from the strong demand for power semiconductors such as automotive MOSFETs and the full c...[Details]
Installing a photovoltaic system is a good choice in some places where electricity prices are high and power outages are frequent. However, the grid-connected system cannot generate electricity dur...[Details]
A stext symbol in arch/arm/kernel/head.S - __turn_mmu_on symbol ----At this time, MMU was turned on, and the era of virtual memory began process mrc p15, 0, r9, c0, c0 // Store cpuid in r9 __look...[Details]
1. Working principle of oscilloscope: Using a narrow electron beam composed of high-speed electrons to hit a screen coated with fluorescent material, tiny light spots can be generated (working princi...[Details]
;AT89C51 single-chip microcomputer P1 port is connected to 8 buttons (switch), P2 port is connected to a common cathode digital display tube, the digital display tube shows the number of buttons pres...[Details]
ON Semiconductor, driving energy-efficient innovation, has launched a pair of new devices that fully comply with the USB-C PD 3.0 standard. The FAN6390 adaptive charging controller makes it easy to i...[Details]
Abstract: This paper introduces the method of analyzing the working process of the three-state gate using Multisim simulation software. The purpose is to explore the simulation experiment technolog...[Details]
Electromagnetic relay is an electrical component that uses electromagnetic principle to realize control and protection. It is mainly composed of electromagnet, contact system, spring and other part...[Details]
From a professional point of view,
the most objective and reliable way
to see
whether a UPS
is good or not is to use test indicators to measure
the main indicators of
...[Details]
AD conversion D conversion is analog-to-digital conversion. As the name suggests, it converts analog signals into digital signals. It mainly includes integral type, successive approximation type,...[Details]
The Spray Quantitative Tester is used to determine the surface wettability of fabrics. It consists of a metal frame allowing distilled water to be sprayed through a nozzle onto the specimen at 45° an...[Details]
Source: Lattice Official Blog In 2018, Lattice introduced the Lattice sensAI solution to accelerate and simplify the development of low-power Edge AI co-processing solutions for a variety of market...[Details]
Soft start and variable frequency start are two different ways of starting motors. They are widely used in industrial automation and power systems. This article will introduce the concepts, princip...[Details]
Sensor
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