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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
Dan Bongino to step down
'Buck Rogers' star dies
Linked to lower dementia risk
16 states sue Trump admin
Sexual assault suit dismissed
Trump expands travel ban
LA home burglarized
Wins 4th straight slalom
Staff vote to extend strike
To dismantle research agency
Won’t seek reelection
Duke of Marlborough charged
US refugee facility raided
WBD rejects hostile bid
Government admits negligence
Cause of death revealed
Retires from boxing
X sues social media startup
To donate to Trump Accounts
Appears in court
On medically assisted suicide
Salad dressing recalled
Headed to YouTube
Putin on peace talks
Influential editor dies
Ex-executives indicted
Adelson offers $250M to Trump
To remain in DC for now
Ohio football coach fired
No buried ocean on Titan?
Ends Lt. Gov. bid in Alabama
Grilled by GA Senate committee
Jack Smith testifies
Knicks win NBA Cup
Senate passes defense bill
Whooping cough cases soar
Confirmed as NASA chief
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