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This system uses STC89C51 single-chip microcomputer and single-chip microcomputer minimum system and 74HC245 drive circuit as well as peripheral buttons and digital tube display components to design ...[Details]
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Today, Xiaomi's official Weibo account released a 2020 New Year's letter to all employees from Lei Jun, the founder, chairman and CEO of Xiaomi. Lei Jun said that Xiaomi TV shipped 10 million units i...[Details]
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The components of a pointer multimeter are as follows: Meter head: The part used to display the value is a highly sensitive magnetoelectric DC ammeter, known as the "heart" of the multimeter. It ...[Details]
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The operation of GPIO is the most basic operation in embedded devices. The general approach is to write a separate driver, which is the case in most examples on the Internet. In fact, there is a un...[Details]
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Abstract: With the continuous development of the national economy, people's living standards and quality of life are constantly improving, and there are more and more household appliances and persona...[Details]
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In this project, we will make a simple and cheap pedometer using an ATtiny85 microcontroller, an MPU6050 accelerometer and gyroscope, and an OLED display module. This pedometer is based on an Arduino...[Details]
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Tuning fork level switch and float level switch are two common liquid level measuring instruments in liquid level switches. They are widely used in industrial production and transportation warehousin...[Details]
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ARM interrupt control system Key driver design 1. Arm interrupt control system 1. Query method The program continuously queries the status of the device and responds accordingly. This method is relat...[Details]
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On July 17, according to foreign media reports, on Tuesday local time, Arm, a British chip design company under SoftBank, announced that it would adjust its chip design licensing fee model. Arm ...[Details]
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RH9A megohmmeter calibrator, insulation tester calibration tester RH9A megohmmeter calibrator, insulation tester calibration tester product introduction ◆ Designed using Cropico's high quality SP...[Details]
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In 2019, OPPO launched the new Enco Free TWS Bluetooth headset, which is designed as a portable Bluetooth headset. It realizes wireless separation of Bluetooth left and right channels and has better ...[Details]
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According to Jiwei.com, Zhongguancun Rongxin Financial Information Industry Alliance (abbreviated as: Rongxin Industry Alliance, FITA) was jointly initiated by a number of technology companies, comme...[Details]
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1. Working principle of oscilloscope The oscilloscope uses a narrow electron beam composed of high-speed electrons to hit the screen coated with fluorescent material to produce tiny light spots. Unde...[Details]
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On April 29, Goodix Technologies released its 2019 annual report, stating that the company achieved operating revenue of 6.473 billion yuan, a year-on-year increase of 73.95%; the net profit attribut...[Details]
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In recent years, the new energy vehicle market has developed rapidly. Data shows that global sales of new energy passenger vehicles will reach 13.69 million in 2023, a year-on-year increase of 35%....[Details]