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Use common anode digital tube and independent keyboard to connect P1 and P2 ports of single chip to realize answering machine The procedure is as follows: #include reg52.h void delay(unsigned char n)...[Details]
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1. Supported chip models
It supports the most classic and market-leading AT89C51, C52, C55 and the latest S51, S52; AT89C1051, 2051, 4051 and other chips produced by ATMEL. The circuit a...[Details]
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Yesterday, Honor held a new product launch conference. In terms of mobile phones, it launched the Honor 20S and Honor Play 3. As competitors, three top executives of Xiaomi couldn't help but comment ...[Details]
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Semtech Corporation, a global leader in high-performance analog and mixed-signal semiconductor products and advanced algorithms, recently announced the launch of the PerSe™ series of sensors fo...[Details]
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The Galaxy S21 series is about to be released, and a lot of news has been exposed online. Now, let's take a look at the default wallpaper of Galaxy S21. It is worth mentioning that these wallpapers...[Details]
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In many electronic control systems, high-precision phase control is often required. The main function of the dual-channel phase-sensitive amplifier is to compare the phase of the collected sinuso...[Details]
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1 Current Status of Embedded In-Memory Database Technology Development
The development of database theory and technology is extremely rapid, and its application is becoming more and more extens...[Details]
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Use AVR's USART to transmit and receive data by itself (short the transmit pin RXD to the receive pin TXD), send data: 0, 1, 2... Data, can receive the data it sends: 0, 1, 2... Use LED to make simpl...[Details]
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Introduction: In order to develop the LED information display screen system, the LED single-line display screen lower computer system was studied, and the hardware circuit schematic diagram based on ...[Details]
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The number and complexity of electronic systems in cars are growing. If the cost of electronic systems in the total cost of automobile production is taken as an indicator, by 2010, the share of ele...[Details]
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A three-phase brushless DC motor is a motor with three-phase windings, no brushes and a commutator (or slip ring), and is driven by direct current through an inverter circuit.
Compared w...[Details]
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1 Introduction The liquid level transmitter is a commonly used transmitter for domestic liquid level measurement. It has a simple structure, is easy to install, and is very accurate in measuring liqu...[Details]
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1. According to the color used:
Single red, single green, red and green dual-primary color, red, green and blue tricolor, full color, natural color; single-primary color LED display (includi...[Details]
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The circuit is shown in Figure 10.7.1. The main part of the circuit is integrated circuit IC2. IC2 is the "upper octave" tone generator in Figure 10.7.1. It can generate all twelve semitones of...[Details]
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introduction
At present, desktop electronic scales are widely used in commercial trade, but they have great limitations: large size, high cost, need for industrial frequency AC power supply, inconv...[Details]