基于 PIR 传感器的安全警报电路设计 所设计的系统由 Arduino UNO、PIR 传感器、UM3561 IC、扬声器、晶体管和几个电阻器组成。 UM3516 IC 是警笛发生器 IC。

TK has combined a PIR with an Arduino to create a smart safety light for the house or workshop. Follow along as this gets built out into a more extensive project.

Here is an ultra simple Arduino Night Alarm project wired around a handful of inexpensive and easily available components. One advantage of using Arduino as a security system is the flexibility!

For his sensor, [Felix] is using a Moteino, a very tiny Arduino compatible board with solder pads for an RFM12B and RFM69 radio transceivers. These very inexpensive radios – about $4 each ...

The CleO Comes complete with 20 tutorials and 20 projects allowing you to learn more about the Arduino platform and using the TFT display to show your data and results as well as any navigation ...