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基于PIR传感器的安全警报
在这个简单的 DIY 项目中,我将向您展示如何设计和实现基于 PIR传感器的安全警报系统。我设计的这个电路使用 Arduino 作为主控制器,当然还有 PIR传感器本身。此外,我还使用了UM3561IC(警报器发生器IC),通过扬声器产生必要的警报声。 通常,在家庭、商店 ...
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今日热点
Confirmed as DHS secretary
Trump postpones Iran strikes
Large oil refinery explosion
Bill Cosby found guilty
Bans wireless router imports
'Superman' actress dies
New NJ US attorney named
Today in history: 1967
VOA staff sues Lake
Blocks TSA funding deal
To block politicians, athletes
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Fentanyl found inside Barbies
Preservation groups sue Trump
NTSB probes deadly collision
Officer shot in DC shooting
Signs 4-yr Seahawks deal
WNBA players approve new CBA
Faces murder charges
EU, AU sign free trade pact
Backs officer seeking immunity
Colombian military plane crash
To launch sports network
Signs 3-yr deal w/ Chiefs
CA sues Trump admin
To remove media offices
Afghanistan frees US citizen
LA28 unveils visual identity
Announces retirement
Bluegrass songwriter dies
David Simon dies
Wins World Cup slalom
Patriots sign offensive tackle
7.6 quake strikes Tonga
Denmark holds early election
Sign nuclear power deal
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