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According to IDC's latest Worldwide Quarterly Mobile Phone Tracker, global smartphone shipments are expected to fall 3.5% to 1.31 billion units in 2022. Due to increasing supply and demand challenges...[Details]
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ST (STMicroelectronics) has written a USB peripheral library for the STM32 series processors and provided good reference examples. This article refers to the examples provided by ST to implement USB ...[Details]
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Today, PANDAER, a brand under Meizu, launched the 'Unicorn' magnetic mobile phone case designed for Apple's iPhone 13 series. The series has two models, BUBU and Snowman Adventure, which are su...[Details]
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Environment: STM32F103RC, main frequency 72MHz (external crystal) or 64MHz (HSI) Ordinary IO port simulates spi Code: // ADS8339.c /****************************************************** ****...[Details]
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1. Hardware PCA9685 is a chip with 12-bit precision and 16-channel PWM wave output based on IIC bus communication. When the chip was first launched by NXP, it was mainly used for LED switch dimming. ...[Details]
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According to news on January 30, Mercedes-Benz recently announced that Nevada has become the first state in the United States to be allowed to legally use the Drive Pilot autonomous driving system (L...[Details]
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American scientists have developed the first wearable sensor that can be used to detect and monitor muscle atrophy. The sensor can be used by astronauts on long-term missions or by patients at home...[Details]
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Fiber Amplifier/EDFA, Principle and Classification of Fiber Amplifier/EDFA
Fiber Amplifier Classification
There are three main types of optical amplifiers:
(1) Semiconductor Optical Amplifier (...[Details]
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High frame rate and exquisite picture quality with immersive game filters make you release skills faster Shanghai, China, May 19, 2022 – Pixelworks, Inc. (NASDAQ: PXLW), a leading provider of innov...[Details]
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In the previous issues of "Four Steps to Identify the Quality of Surveillance Lenses", we have introduced methods to identify surveillance lenses from the perspective of appearance, parameters and ...[Details]
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The equipment of a certain industrial control equipment developer uses a single-chip microcomputer control circuit. The single-chip microcomputer uses an external two-pin crystal oscillator to genera...[Details]
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1. MC145151-2 is a phase-locked frequency synthesizer integrated chip, which has 14 pins N13~N0 for controlling the output frequency. Among them, N13 and N11 are grounded, and N12 is suspended. From ...[Details]
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Mixers are often implemented using a diode bridge or a Gilbert cell. Both types of mixers use a local oscillator (LO) to jump the polarity of the radio frequency ( RF ) input.
When LO is positive, ...[Details]
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1. In-vehicle Internet of Things
The in-vehicle Internet of Things is an emerging technology that can greatly improve the safety and efficiency of future transportation systems and connect veh...[Details]
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The electronic control system of an electronically controlled engine is a highly integrated electronic control system that controls the operation of the engine through electronic signals to improve...[Details]