This tutorial show how to make a Infrared (IR) Sensor Alarm Circuit using TSOP1738. It finds intruder using light which we cannot see. This alarm uses infrared light so people call it IR alarm. It make one invisible light beam with small chip named IC 555. If someone walk in front of light, then the […]
Alarm Circuits
Infrared (IR) Intruder Alarm Circuit
This article tell how to make new type of Infrared (IR) Intruder Alarm Circuit. It can find person who walk through invisible light beam. Circuit have two main part: one transmitter and other one is receiver. Transmitter send out one infrared light beam across a room. If someone goes in front of light the LED […]
Sound Operated Music Bell Circuit
To begin with, this Sound Operated Music Bell Circuit is small project that play music when it hear sound like clap or knock, it use microphone to catch sound and then start music using some small electronic parts. Also, this circuit is fun, easy to make and good for hobby or decoration use. What is […]
Simple Solar Powered Plant Watering Alarm Circuit
Simple Solar Powered Plant Watering Alarm Circuit tell us how to make small device that gives water to plant when plant need it. Furthermore, there are many ways to use solar energy but it should be clean and should not cost much, but the device used in this circuit is mix of solar power and […]
Fire Alarm Circuit using Transistors
Fire Alarm Circuit is very important for every home, as these small thing can save life because it tell early when fire is happening. In this article, for Fire Alarm Circuit using Transistors we will learn how to make easy fire alarm circuit by ourselves. The circuit is good for small place like home, shop […]
Laser Alarm Circuit for Security
This article show how to make a Laser Alarm Circuit for Security which even real spy can use it!, Moreover, the circuit cost less than big expensive alarm from shop and also it is fun to make by ourselves and is good to protect our things. What is a Laser Alarm Circuit for Security To […]