Here is an ultra simple Arduino Night Alarm project wired around a handful of inexpensive ... The alarm system is triggered when a “Logic High (H)” level signal is detected at its sensor input port.

Here is a simple general-purpose security alarm circuit built on the Arduino platform. It brings up an obtrusive alert signal when an intrusion/theft attempt is observed by its front-end sensor. In ...

Arduino is able to interpret signals from a variety of sensors. By placing a unit equipped ... you can link your Arduino ...

He’s using an Arduino Uno and an Ethernet breakout board to hook it up to the network. This allows him to send text messages to himself when the alarm system is armed, disarmed, or triggered.

[IngGaro]’s latest project uses the full range of features available in this versatile microcontroller and has turned an Arduino Mega into a fully-functional home alarm system. The alarm ...

Check out the complete build below which uses a piezo crysta together with an Arduino Uno development ... to silence it. The alarm/target works using a piezoelectric sensor attached to the clock ...

The PIR Motion Sensor on the left is made by Parallax ... 10K Resistor connects to PIR Pin “Alarm” PIR Pin “Alarm” connects to Arduino Digital 2 The code for the active low Sparkfun ...

The Raspberry Pi is a credit card-sized computer capable of running full-fledged Linux distributions such as Raspberry Pi OS, ...