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The 16x16 LED dot matrix designed based on 51 single chip microcomputer uses 74HC154 and 74LS04 as the driver for the 16x16 LED dot matrix. The simulation schematic diagram is as follows The micro...[Details]
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The OPPO smart bracelet was officially released in China in June last year, priced at 199 yuan. The bracelet uses a 1.1-inch AMOLED display, has 24-hour heart rate monitoring and continuous bl...[Details]
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1. Place the megohmmeter stably and firmly and clean the surface of the object to be measured to ensure correct measurement. 2. Correct wiring: The megohmmeter has three terminals: line (L), ground (...[Details]
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The on-site monitoring instrument for power metering devices is an intelligent instrument designed for online detection of line loss reduction and electricity theft prevention for power management dep...[Details]
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Today, a piece of news about a Tesla
robot
attacking an engineer went viral online, causing a stir in public opinion.
The popularity of the related topic not only topped Baidu's hot se...[Details]
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The RS232 standard was born before RS485, but RS232 has several shortcomings: The signal level of the interface is relatively high, reaching more than ten V. Improper use may easily damage the inter...[Details]
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Competition with Chinese manufacturers is fierce. Japan's Kyocera is reported to have closed its solar panel factory in Tianjin, China, and switched to sourcing from Chinese factories. According to...[Details]
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Audio amplifiers for high-power portable speakers, such as cart speakers, are often powered by lithium-ion batteries, which can range from a single cell to several cells in series. Designers often ...[Details]
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This sawtooth oscillator circuit requires less than 3.2μA of current and operates at less than 1V, making it a useful building block for extremely low power and low voltage operation. It can be used ...[Details]
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One hundred days ago, our CEO Bob Swan announced the Intel Technology Pandemic Initiative: a $50 million investment to fight COVID-19 using technology at its best: using technology to study and help ...[Details]
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On September 9th, local time, Haichen Energy Storage held a "Golden Hour" energy storage technology sharing session in Anaheim, the United States, and launched its 6.25MWh energy storage system sol...[Details]
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Keil C Compilation 51
#define uchar unsigned char
#define uint unsigned int
#include "reg51.h"
#include "intrins.h"
sbit Scl=P3^3; //Serial clock
sbit Sda=P3^4; //Serial data
/*Send start...[Details]
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As electronic products face the severe challenge of how to produce maximum efficiency in smaller devices, it provides motivation for the invention of surface mount components or the study of semicond...[Details]
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1. The macro "_BV(bit)" defined in the header file "sfr_defs.h" is also often used to implement bit operations.
Among them, the macro "_BV(bit)" is defined as:
#define _BV(bit) (1 (bit))
example:...[Details]
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The turning point of the kinetic energy conversion in the automotive industry is approaching. Under the consensus that "electrification is the first half and intelligence is the second half", intel...[Details]