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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
Former NASCAR driver dies
Kennedy Center renamed
Sentenced to life in prison
US consumer prices slowed
'We want it back'
Linked to lower dementia risk
Trump signs executive order
Pleads not guilty
Confirmed as NASA chief
Small plane crash in NH
Weekly jobless claims fall
To ban trans care for minors
More estate photos released
Marty Small Sr. acquitted
US sanctions 2 more judges
To be honored
Asks court to toss conviction
Soccer star shot and killed
Pulitzer Prize winner dies
On medically assisted suicide
Island turns crimson
Government admits negligence
Doctor sentenced to life
To remain in DC for now
Another strike on drug boat?
NK stole billions in crypto?
Hearing concludes
House OKs GOP healthcare bill
Adelson offers $250M to Trump
Jackpot rises to $1.5B
Dan Bongino to step down
DNC won’t release analysis
North Carolina plane crash
Whooping cough cases soar
Ohio football coach fired
To donate to Trump Accounts
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