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1.1 Brief description of SPI protocol SPI is the abbreviation of Serial Peripheral interface. As the name suggests, it is a serial peripheral interface. It was first invented by Motorola. The SPI in...[Details]
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A face detection method based on skin color detection and eye location is proposed. The color image is normalized using a color balance method based on "reference white", the image is segmented in ...[Details]
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1. Spectroscopic principle of plane diffraction grating
(I) Grating equation
A reflective plane diffraction grating is an element formed by engraving a series of grooves of equal widt...[Details]
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As the "synonym" of South Korea's entry into the world, Samsung Group has always been a national enterprise that Koreans are proud of. Of course, it can also maintain the "face" for the Koreans. Af...[Details]
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1 Introduction
In the field of electronic measurement, dynamic signal analyzers are called "RF multimeters" in the frequency domain, which shows their importance and wide application. Dyna...[Details]
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This article mainly introduces the relevant knowledge of ARM bare metal code relocation and the implementation process of relocation. The following will start with the startup method of the ARM bare ...[Details]
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Lead-acid batteries are the most widely used high-efficiency batteries in high-power power supplies . During use, short circuits may occur due to various reasons, thus affecting the use of the ...[Details]
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Usually the test development board provided by our website is a finished board that has been welded and tested. If you are a netizen who purchases a kit, you can start a series of installation and e...[Details]
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The AD8210 is a single-supply differential amplifier ideal for amplifying small differential voltages in the presence of large common-mode voltages. Its input common-mode voltage range is -2 V to +...[Details]
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【QWT Introduction】
QWT
, the full name is Qt Widgets for Technical Applications, is an open source project based on the LGPL copyright agreement, which can generate various statistical c...[Details]
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The world's first OnePlus Nord 2T with MediaTek Dimensity 1300 processor has been released. The single-core score of OnePlus Nord 2T is 719, and the multi-core score is 2760. Compared with the Snap...[Details]
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Touch sensing is becoming a trend. Whether it is the refrigerator, air conditioner, washing machine in our home, the laptop, desktop computer in the office, the mobile phone, iPad, remote control in ...[Details]
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Recently, the Australian Energy Market Commission (AEMC) supported a rule change request from the country's energy market operator to ensure that rooftop solar inverters can properly "ride through"...[Details]
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According to the latest "2015 Photovoltaic Inverter China Market Report" released by IHS, Sungrow Power Supply ranked first in the Chinese photovoltaic inverter market in 2014.
根据报告，2014年中国市场的...[Details]
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1. Set obj and src
ifneq ($(OBJTREE),$(SRCTREE))
ifeq ($(CURDIR),$(SRCTREE))
you :=
else
dir := $(subst $(SRCTREE)/,,$(CURDIR))
endif
obj := $(if $(di...[Details]
RF/Wirelessly
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