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//Circuit description follows.
//MCU: Use 51 series compatible ones;
//4×4 matrix keyboard: Connect to P1 port;
//Two-digit digital display: P0 port outputs seven-segment code, P2 port outputs bit ...[Details]
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The smart rescue vehicle also has the functions of measuring mileage, angle and temperature.
1. Mileage circuit
1. Mileage circuit principle
The mileage circuit is ...[Details]
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The progress of 5G smartphones has attracted much attention, and the 5G version of the iPhone has accelerated the 5G wave. Overall, the three new iPhones next year are expected to support 5G. Apple's...[Details]
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On February 19, Siyuan Electric issued an announcement stating that the company plans to use 1 billion yuan of its own funds to establish a wholly-owned subsidiary, Jiangsu Siyuan Energy Technology C...[Details]
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What is the relationship between Intel and Mobileye? At CES, after Intel officially announced an automotive strategy independent of Mobileye, the relationship between the two companies in the automot...[Details]
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In order to strengthen the security of the troops, prevent on-duty guns and ammunition from being stolen, sentries from being attacked and sentries from escaping from the troops with guns and amm...[Details]
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Conventional LEDs are generally bracket-type, encapsulated with epoxy resin, with low power and low overall luminous flux. High-brightness LEDs can only be used for some special lighting . With t...[Details]
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Samsung Electronics said on Wednesday it has temporarily closed one of its mobile phone research labs in Suwon, Gyeonggi Province, South Korea, after an employee tested positive for the coronavirus, ...[Details]
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As a new energy form of energy conservation and environmental protection, microwave has been rapidly developed at home and abroad in recent years, and there have been many successful examples in ce...[Details]
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Full-wave rectifier circuit
with inductor filtering
is shown in Figure Z0713. The filter element
L
is connected
in series between the rectifier output and the load
RL
...[Details]
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The display output of the microcontroller is often used to display system parameters, operation results and human-computer dialogue windows. Commonly used displays are LED (digital tube) and LCD (liqu...[Details]
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When we make an electronic product, we often need to realize the function of human-computer interaction. In addition to outputting to the host computer for display through the computer, the display i...[Details]
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STM32_TEST.axf: Error: L6218E: Undefined symbol SystemInit (referred from startup_stm32f10x_md.o).
The error message of this problem has clearly told you where the error is, Undefine...[Details]
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//MSP430IIC interface is a very convenient object, but many people still abandon it. Of course, there are various reasons. But if you really want to use IIC interface and it is allowed, it is still ve...[Details]
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Figure 1. Equivalent circuit of series resonant transformer
Series tuning The equivalent circuit of the series resonant transformer is shown in Figure 3. When the power frequency voltage of US...[Details]
Power technology
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