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When slight pressure is applied to a fiber to make it into a V-shape, a battery-powered, handheld "fiber finder" measures the light escaping from it. A pair of photocells compares analog levels on eit...[Details]
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Recently, Apple released a number of new products including MacBook Air 2020 and iPad Pro 2020, but there is no iPhone 9 that people are looking forward to. According to foreign industry insiders, th...[Details]
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I. Hardware Principles of Serial Port Programming
1. Serial Port Features:
1>16-byte receive FIFO and 16-byte transmit FIFO
2>The receive FIFO trigger point can be set to 1, 4, 8 or 14 bytes.
3>Bu...[Details]
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: Since 8-bit MCUs generally have only one serial interface, which is often not enough, you can only write a program to simulate the serial port. The following program is one I wrote earlier and I put...[Details]
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The circuit is shown in the figure. ICl and other components form a voltage comparator. When the grid voltage changes, the DC voltage after rectification by VD and filtering by Cl also changes. This ...[Details]
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Recently, the CCTV News "Technology Propulsion" column team visited the headquarters of Beijing Mengzhimo Technology Co., Ltd. Wu Cong, the marketing director of Mengzhimo, was interviewed and introd...[Details]
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On December 3, according to foreign media reports, electric drive has become a major development trend in the automotive field. Emerging car manufacturers and major fuel car manufacturers are investi...[Details]
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The STM8 microcontroller development environment consists of three parts: computer development environment, target board, and burning simulator. We must have the above three conditions to start the...[Details]
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At the Huawei Developer Conference in 2019, Huawei officially released Harmony OS. One year later, the Huawei Developer Conference 2020 is about to kick off. As for when Hongmeng OS can be applied to...[Details]
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Cause: The large-range (500mA, 1A) shunt resistor is short-circuited. This is because the large-range shunt resistor has been working under high current for a long time, causing the insulation layer ...[Details]
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On the evening of October 7, North Huachuang released its third-quarter report, saying that the net profit in the first three quarters is expected to be approximately 595 million yuan to 709 million ...[Details]
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On July 26, Shandong Lithium held a press conference in Heze City, announcing that the 62,500-ton lithium iron phosphate and 100,000-ton iron phosphate projects were put into full production. At th...[Details]
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Inexpensive isolation transformer (temporary device)
Use two 12V thin filaments or power transformers to form a temporary isolation transformer, which is used for low-power (less than 50W)...[Details]
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According to the Economic Daily, in order to strengthen the competitiveness of panels and market leadership, Taiwan's panel manufacturers did not choose to enter the OLED market, but instead actively...[Details]
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Driven by the need for higher bandwidth, advanced features, enhanced security and standardization, automotive original equipment manufacturers (OEMs) are transitioning to
Ethernet
solutions...[Details]
RF/Wirelessly
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