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introduction
In most countries, taxis are a very common and convenient means of transportation. Most developed countries have built a complete taxi dispatch system to achieve efficient tax...[Details]
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The magical year of 2020 has finally come to an end, and the long-awaited year of 2021 has arrived as scheduled. Looking back at 2020, the epidemic has profoundly affected the development of the glob...[Details]
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1. HC-SR04 ultrasonic module 1 Introduction HC-SR04 ultrasonic ranging module can provide non-contact distance sensing function from 2cm to 400cm, with ranging accuracy up to 3mm; the module includes...[Details]
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Some time ago, foreign market research firm Strategy Analytics released its 2018 smartwatch report, showing that Samsung and Fitbit's smartwatch shipments in the last quarter of 2018 quadrupled compa...[Details]
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Hardware circuit: P1.0 ~ P1.5 are connected to 6 external LEDs, called D1 ~ D6 respectively, which emit light at low level. P0.0 ~ P0.3 are connected to 4 external buttons, called K1 ~ K4 respect...[Details]
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The MAX3669 is a complete, +3.3 V laser driver with automatic power control (APC) circuitry for SDH/SONET applications up to 622 Mbps. It accepts differential PECL inputs, provides bias and modulatio...[Details]
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1 Introduction
The new technology of high brightness (HB) white LED has enabled LED to reach the 1W level. Due to the significant improvement in efficiency, HB-LED is rapidly being used ...[Details]
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The junction box diagram of the star and triangle connection of the stator winding UI-U2, V1-V2, and W1-W2 of the three-phase asynchronous motor is shown in Figure 1. From the wide curve diagram, it c...[Details]
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There seem to be annoying speed bumps everywhere on the road. They can be found everywhere in the driveway and parking lot. Although they vary in size, they are all equally unpleasant. When you enc...[Details]
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With the rapid development of science and technology, single-chip microcomputers are also changing with each passing day and developing rapidly. At present, it is not only widely used in industry, ...[Details]
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Component selection and production: The high-frequency head uses Shanghai Huajia TDQ-3V15~870MHz full-addition high-frequency head. After testing, the low-frequency head has a minimum operating v...[Details]
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According to foreign media reports, researchers led by Jennifer L. Schaefer, a professor in the Department of Chemical and Biomolecular Engineering at the University of Notre Dame, analyzed how magne...[Details]
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ST launches first device in iNEMO series
STMicroelectronics has introduced the first device in its iNEMO family of multi-sensor inertial measurement units (IMUs). The combination of a variety of m...[Details]
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In recent years, the space vector theory of motors has been introduced into inverters and their control, forming and developing the space vector PWM (SVPWM) control concept. Its principle is to use di...[Details]
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On October 19, 2024, a delegation from the Tian Changlin Center (Optical Valley), led by Tan Binglin, Vice President of the U.S.-China Green Energy Promotion Association (UCGEC), visited the energy...[Details]
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