We already have paper cups, paper diapers, and even paper airplanes, so why can’t we have paper batteries ?Newly emerging thin, flexible paper batteries, while not powerful enough to power everyday it...
The previous article has completed the basic functions of the fingerprint management system.
This article adds screen brightness adjustment function based on the previous article.
The brightness adjus...
This article combines the HTTP request weather data (through the "Xinzhi Weather" website) and lvgl display of pictures and time from my previous two articles , and adds calendar display and real-time...
Use the official routine to measure the external voltage, using the AIN1 channel, which is the P1.1 pin. Use two resistors to divide the voltage externally and input it to the P1.1 pin. The actual mea...
It has been reported that all 170 LED street lights that were piloted on a section of road in Nanjing, Jiangsu Province two years ago have broken down, their service life is far from the expected, and...[Details]
Compared with traditional cars, new energy vehicles have more prominent EMC problems. New energy vehicles use electric drive systems directly, and the use of high-voltage accessories will make the e...[Details]
The STM32 timer can also work in the output active mode TIM_OCMode_Active. The so-called active mode here, in layman's terms, is when the timer count value reaches the comparison value, it is forced t...[Details]
At the 40th anniversary celebration of the founding of the China Quality Association, Xiaomi CEO Lei Jun responded to many topics of concern on the Internet. Regarding Xiaomi being surpassed by Huawe...[Details]
With the continuous development of smart homes, vacuum cleaners and sweeping robots are becoming more and more popular. At present, the development of vacuum cleaners and sweeping robots has transf...[Details]
VRS51L3074 is a single-cycle 8051 microprocessor produced by Ramtron that can run at a speed of up to 40MIPS. The memory subsystem of VRS51L3074 has 64 KB Flash, 4,352 bytes of internal SRAM, and nume...[Details]
Abstract: This paper introduces the experience of CIMS project implementation and process of Zhongqiang Electric Tools Co., Ltd. in Ningbo Technology Development Zone, a backbone of the national el...[Details]
A clamp ammeter is also called a clamp meter. It is a special instrument for measuring AC current. It is generally used in situations where the current is measured without disconnecting the circuit. ...[Details]
In today's rapidly developing industrial society, spectral analysis instruments and chemical analysis instruments are widely used in many fields such as metallurgy, chemistry, pharmaceuticals, machine...[Details]
With the development of wireless communication technology, it has become a trend to combine mobile communication with wireless network applications. Therefore, the application of microwave dual-passba...[Details]
According to the China Trade Relief Information Network, on June 21, 2021, the U.S. International Trade Commission (ITC) issued an announcement stating that it had made a 337-part final ruling on cer...[Details]
With the rapid development of information technology, wireless remote monitoring technology has been more and more widely used. The wireless monitoring management system using advanced GPRS technol...[Details]
An audio amplifier is an amplifier that increases smaller audio signals while maintaining the smaller details of the signal. The demands of today's audio industry have increased the architecture of...[Details]
The machine vision system is a non-contact optical sensing system. It integrates both software and hardware, and can automatically obtain information from the captured images or generate control acti...[Details]