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On August 26, Shenzhen Huaqiang released its 2021 semi-annual report. In the first half of 2021, the company's performance achieved substantial growth, with operating income of 9.987 billion yuan, a ...[Details]
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Issues such as electronic waste and easily obsolete laptop all-in-ones have gradually attracted the attention and concerns of many consumers, who hope to have a greener and more environmentally frie...[Details]
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News on the morning of February 22nd: There have been many rumors about AirPods 3rd generation, and some images from @我爱音响网 revealed its appearance. Although it is not 100% confirmed, this A...[Details]
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1. What can Fourier transform near infrared spectrometer do for the tobacco industry?
The application of Fourier transform near infrared spectrometer in tobacco industry is divided into two part...[Details]
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1 Introduction The basic components of various measurement and control systems and intelligent instruments and meters include: sensors, computer systems, and actuators. Nowadays, the versatility ...[Details]
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DIY music players are fun, we have previously built some music players using Arduino and dedicated MP3 modules. Now we are building an interesting audio player using ESP32 where you can play sound ...[Details]
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As portable battery-powered devices operate longer and longer, Class D amplifiers are becoming more and more popular due to their inherent efficiency advantages. Today, most Class D systems operate...[Details]
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Abstract: Because of internal circuit-breaker delay and limited MOS-gate pulldown current, many hot-swap controllers do not limit current during the first 10µs to 50µs following a shorted output. The ...[Details]
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0 Introduction The car driving recorder, commonly known as the car black box, is an electronic device that can record the vehicle's driving speed, time, mileage and other status information. The dri...[Details]
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At present, two new technologies have emerged for reversing: ultrasonic ranging and rear-view camera.
Reversing radar and rear-view camera have their own advantages and disadvantages. The former ha...[Details]
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Triacs are bidirectional AC switches that can control loads up to 25A rms at voltages up to 600V. They are used for the control of motor speed, heaters and incandescent lamps. Logic triacs are partic...[Details]
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software design /********************************************************************* Purpose: Create LCD1602 operation library Target system: Based on STM8 microcontroller Application software: Co...[Details]
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The latest quarterly report on global smartphone shipments from International Data Corporation (IDC) shows that despite disruptions caused by supply chain constraints and a global chip shortage, smar...[Details]
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The Digital China Innovation Competition is an important supporting event of the Digital China Summit. It is jointly hosted by multiple national ministries and Fujian Province. It ...[Details]
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First look at the address line of 2440: mini2440 schematic.pdf
The 2440 chip provides 27 address lines = 128M.
The S3c2440 chip only provides 27 address lines addr on the pins provi...[Details]