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The characteristic of LED is low working voltage. Even the working voltage of white light LED will not be higher than 4V. Compared with the AC mains with effective value of 220V, voltage reduction or ...[Details]
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Virtual instruments are computer-based instruments. The close integration of computers and instruments is an important direction for the current development of instruments. Roughly speaking, there are...[Details]
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Please do not blame me for the poor hand-drawn schematic diagram of the DIY laser engraving machine by others. The circuit schematic diagram in the experimental exercise is as follows: The microcon...[Details]
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Q: Why do products need to undergo electrical safety testing? A: This is a question that many product manufacturers want to ask the most. Of course, the most common answer is "because it is stipulate...[Details]
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I2C Basics Summary Two signal lines, one for data and one for timing, master-slave mode, one for response and one for answer. Long Shunyu used the example of the government office solving a case when...[Details]
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While LED lighting products are replacing general incandescent lamps and energy-saving lamps , in addition to being dimmable,the luminous color, light output, luminous efficiency and other relat...[Details]
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The PCF8574 module makes it possible to realize IIC driving LCD1602. The following figure is the connection circuit diagram of PCF8574 module and 1602: The actual connection method is as follows:...[Details]
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Sony Semiconductor Israel recently announced that its advanced ALT1350 wireless system-on-chip (SoC) has been officially put into commercial use. This LPWA (Low Power Wide Area) cellular module was d...[Details]
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According to foreign media reports, on March 10, electric car manufacturer Rivian stated in a letter to shareholders that the company plans to use new batteries in its electric trucks, vans and SUVs....[Details]
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SPI is a high-speed, full-duplex, synchronous communication bus, and it only occupies four wires on the chip pins, saving the chip pins. SPI is widely used in circuit systems in master-slave mode. I...[Details]
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1. Start the program flow
The resources of embedded systems are limited, and programs are usually stored in ROM and run. Before the program in ROM is executed, the system hardware and software operat...[Details]
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The USB interface is the most widely used interface in the world, and people's demand for 10 times the transmission speed has created "Ultra-Speed USB 3.0", one of the most popular technolog...[Details]
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In most modern
control
systems, light-emitting diodes (LEDs), digital tubes, liquid crystal displays, buzzers, etc. are usually used for status/result display and fault alarm. If digital la...[Details]
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There are many variable factors that affect the measurement conditions in atomic absorption spectrometry. When the measurement conditions of the same sample are different, the accuracy and sensitiv...[Details]
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CNC machine tools (Computer Numerical Control Machine Tool, referred to as CNC machine tools) are automated machine tools that are controlled by computers. They control the movement and operation o...[Details]