English
全部
搜索
图片
视频
地图
资讯
Copilot
更多
购物
航班
旅游
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
最佳匹配
最新
新浪网
2 年
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 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Resigns as NJ US attorney
Hears FTC firing case
Makes hostile bid for WBD
Opts out of bowl game
GA lawmaker indicted
Northern lights in US
Massive quake strikes Japan
DC police chief to step down
Won't hear TX book ban case
Hints at AI executive order
Another 55 depart for Iran
Ex-court clerk pleads guilty
Guides on ICE rights
Elected to Baseball HOF
Abducted children released
Berkshire shakes up team
Wins UK security review
Boeing completes acquisition
Launches TX Senate bid
Patient stabs social worker
Baylor names new AD
China hits $1T trade surplus
Louvre workers to strike
Exits Texas Senate race
WC to add hydration breaks
Zelenskyy holds London talks
Rozier pleads not guilty
ICEBlock sues Trump admin
Golden Globe nominations
Ex-agents sue over firing
反馈