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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
Fed holds rates steady
Agents placed on leave
Kim Keon Hee sentenced
Trump endorses Alfonso
Ice disrupts ferry services
On Epstein files review
DA seeks July trial
Plane makes belly landing
Sworn in as Honduras president
NYC anti-ICE protest arrests
Hotel fire in French Alps
Starbucks sales surge
Starmer arrives in China
Portugal storm
Trump warns Iran
Judge blocks deportation
To settle fraud claims
French ex‑senator convicted
Japan’s pandas return home
Residency challenge filed
To retire fleet of MD-11 jets
ICE removal blocked in MN
To cut 16,000 jobs
'No Kings' protests planned
Trump endorses Tom Tiffany
Trump addresses summit
Settles lawsuit ahead of trial
Meta blocks links to ICE List
SC measles outbreak
Shooting in Arizona
Plane crash in western India
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