In this step-by-step tutorial, you'll learn how to make a very loud, simple, and powerful alarm using everyday materials.

Learn how to make a simple fire alarm with our step-by-step guide in this video! Discover the essential components and straightforward process needed to build an effective fire detection system from ...

Alarm systems are pretty expensive, but if you want to whip up something on your own, Make shows off how to build a very simple alarm system with a Raspberry Pi. The system uses a Raspberry Pi, USB ...

The circuit presented here is a very simple and yet highly effective alarm system for protecting an object. The circuit requires no special devices and can be built using components that you will no ...

Here is a small project on fire alarm. When a fire accident is happened in home or office, it will detect the fire (intensity of fire in the room) at instant and give the alarm so we can be ready and ...

A few simple components are all it takes to create an over-temperature alarm. The circuit in Figure 1 requires only an ordinary negative-temperature-coefficient (NTC) thermistor, two common ICs, and a ...

Ring's $199 Z-Wave-enabled Alarm Security Kit is so simple you might overlook it at first. The system includes a base station, a keypad, a door/window sensor, a motion sensor and a Z-Wave range ...

SleepControl for iOS is the fastest alarm clock in the AppStore, allowing you to set an alarm in literally 3 (!) seconds. It comes together with dedicated battery management features, which were ...

If you could spend a couple of bucks on a simple project that might prevent a $2000 repair bill on your vehicle, you’d probably build it, right? That’s the idea behind this simple low-pressure alarm ...