This tutorial teaches how to construct a simple alarm system that detects intruders using invisible light beams. Because it uses infrared light this kind of alarm is known as an IR alarm. It generates an infrared light beam that travels across a room using an special chip known as an IC 555. The light is […]
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Simple Infrared (IR) Intruder Alarm Circuit
This article explains how one can design an innovative alarm system that detects possible attackers passing through a invisible light beams. The circuit consists of two components: a transmitter and a receiver. The circuits transmitter puts out an infrared light beam across the room. When someone passes by a light source an LED alerts with […]
Simple Solar Powered Plant Watering Alarm Circuit
There are lots of uses for solar energy which is a clean and economically friendly power source. This article shows how to build a solar powered plant waterer that senses when the plants are thirsty. This device which mixes electronics and solar energy is interesting. What is a Simple Solar Powered Plant Watering Alarm Circuit: An […]
How to Build Simple Fire Alarm Circuit
A fire alarm is the most important device for every household. By warning you about fire accident early this tiny device can save lives. This article explains how to build a simple fire alarm circuit on your own. Smaller spaces that do not need a very complex system such residences, businesses or workshops are perfect […]
Building a Laser Alarm Circuit for Security
Do wish to be the hero of your own house security system? This article will explain how to construct an easy laser alarm circuit that can be used by an actual spy. Compared to expensive store bought alarms it is less expensive and a fun project to make oneself to secure its belongings. What is […]
Simple Rain Detector Alarm Circuit
Do anyone wish to avoid a sudden downpour from wetting its clothes? This article can teach something. This article will show how to build a simple rain detector alarm circuit. In order to warn when to bring umbrellas or other outside objects inside this circuit uses a sensor to detect rainfall and then sounds an […]