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Download the schematic used in this program: click here . The microcontroller chip used is stc89c52; just find the corresponding part. This is the circuit diagram of the entire microcontroller devel...[Details]
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0 Introduction
The BGTV4152 all-solid-state TV transmitter is a new type of transmitter produced by Beijing Broadcasting Technology Co., Ltd. In 2007, Shanxi Radio and Television Wireless Management...[Details]
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The other two signals DDEN and SYSSPEED of ARM9TDMI boundary scan chain 1 are used for:
— DDEN is accessible and testable in ARM9TDMI internal test mode. In ARM9TDMI external test mode, a low level i...[Details]
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In the current casting process, many types of workpieces have corresponding airtightness requirements, which also requires airtightness testing, also known as leak testing or leak detection, such as t...[Details]
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While Huawei's P20 Pro and this year's P30 Pro are amazing cameras, they're not as strong at recording videos as they are at taking photos. This is partly because the Kirin 970 and Kirin 980 chipsets...[Details]
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1. Does not turn on, has no display when turned on, restarts repeatedly or crashes; 2. Port failure: no output, inaccurate output value, no load (or insufficient battery), abnormal test results; 3. D...[Details]
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Usually, the R×10, R×100, and R×1K ranges of the multimeter are selected for testing and judgment. The red and black test leads are connected to the negative pole of the capacitor respectively (the ...[Details]
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1 Introduction
ADT75 is a digital temperature sensor
launched by ADI
. It has a highly integrated
temperature sensor
built in
. Its rated operating temperature range is -5...[Details]
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Almost all camera phones today can be used as digital cameras. Users certainly want to
take high-quality photos in
low-
light
conditions. Therefore, the need to add an illumination ...[Details]
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It is reported that LG Innotek, a division of LG, has developed an electronic car key module that can connect to the user's smartphone, allowing the user to have an electronic car key. The module has...[Details]
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The double-layer silicon nitride was prepared by plasma enhanced vapor deposition as the anti-reflection film for polycrystalline silicon solar cells. The optical parameters of the double-layer sil...[Details]
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Information shows that on May 3, the "AR glasses" appearance patent applied for by Hubei Xingji Times Technology Co., Ltd., a subsidiary of Geely Mobile, was authorized. The abstract shows tha...[Details]
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1 Overview
With the rapid development of semiconductor technology and the application of mobile communication, network technology and multimedia technology in embedded system design, the devel...[Details]
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When using a radio, tape recorder, or walkie-talkie to receive a radio station or a small signal from a distant area, there is often severe noise interference and the relevant content cannot be heard...[Details]
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A Wireless Sensor Network (WSN) is a multi-hop self-organizing network system composed of a large number of cheap micro sensor nodes deployed in the monitoring area through wireless communication. ...[Details]