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On October 10, Nokia 215 4G mobile phone officially started pre-sale on JD.com and Nokia Mobile Mall. If you participate in the pre-sale immediately, 1 yuan can be used to offset 20 yuan, and the fin...[Details]

　 　introduction 　　Liquid crystal displays are mainly composed of LCD (liquid crystal panel) and backlight. Because LCD itself does not emit light, it needs to use external light sources to achieve ...[Details]

Current-sense amplifiers are mature ICs widely used in electronic devices to monitor load current in real time. The system controller performs power management operations based on load informa...[Details]

P2.0~P2.2 are connected to independent buttons K0, K1, and K2 respectively. P1 is connected to 8 LEDs, which light up when the output is low level. Require: Press the K1 key, P1.7 outputs a square ...[Details]

I learned the program of my predecessors for a while, and then I wrote a simple button program to control the LED light. The microcontroller source program is as follows: #include stc15w202s.h #in...[Details]

Most silicon ESD protection solutions on the market today are designed for consumer electronics, but ESD threats can also keep automotive electronics designers up at night. It’s not just “normal” ESD...[Details]

With the advent of the era of intelligent connected vehicles, cars are gradually transforming from traditional mechanical means of transportation to mobile smart terminals that integrate road traffic...[Details]

This paper introduces a piezoelectric biosensor detection circuit based on complex programmable logic device ( CPLD ) . The detection circuit uses high-performance CPL...[Details]

Recently, Jinyi Technology released its 2019 semi-annual report.   The announcement shows that the ETC industry has benefited from the policy of abolishing provincial border toll stations and has bec...[Details]

This system realizes input DC voltage of 15V, output AC voltage effective value of 10V, rated power of 10W, and AC voltage frequency can be adjusted step by step from 20 to 100Hz. With MSP430 microco...[Details]

With the rapid development of emerging technologies such as artificial intelligence, cloud computing, big data, and the Internet of Things, domestic companies have launched intelligent unmanned...[Details]

Figure 10 shows the organization of the ATmega88 SRAM space. The ATmega88 is a complex microcontroller that supports more peripherals than the reserved 64 I/Os (accessed by IN OUT instructions). Fo...[Details]

In order to strengthen the sanitary supervision of small ships sailing to Hong Kong and Macao, and to cooperate with the Guangdong Inspection and Quarantine Bureau to formulate sanitary supervision st...[Details]

      Finally, Meizu phone users have their own smartwatch to choose from. 　　Finally, Meizu launched its own smartwatch product. In making smartwatches, each manufacturer has its own considerations. ...[Details]

Soft start and star-delta start are two different motor starting methods, each with its own advantages and disadvantages. In practical applications, the choice of starting method depends on factors...[Details]