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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
Backs off from tariff threat
Seems to let Cook keep job
Trump speaks at Davos
Announces run for Congress
To be released from jail
Limits Wall Street investors
Air Force One returns to WA
Halligan leaves her post
Launches MN Senate bid
NASA astronaut retires
Restarts largest nuclear plant
Agrees to join Trump’s Board
Another train crash in Spain
Synthetic drug ring busted
To host SAG Actor Awards
JD Vance to visit Minnesota
Dismisses FIFA boycott?
Hall of Fame inductee
IRS chief announces shakeup
Vote to block Mercosur deal
'Don't Be Dumb' world tour
Tops 325M subscribers
ICE broke into MN home
Ford recalls over fire risk
Israel strikes Gaza
To be sold for $450 million
Japan sentences Abe's assassin
US transfers ISIS detainees
Ex-GA lawmaker pleads guilty
Settles social media lawsuit
Elected to Baseball HOF
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