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. This circuit is fun, easy to make, and good for hobby or decoration use. What is a Sound Operated Music Bell […]
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. There are many ways to use solar energy but it should be clean and should not cost much. This device is mix of solar power and electronics which is very interesting. What […]
Simple Water Level Indicator Buzzer Circuit
This Simple Water Level Indicator Buzzer Circuit show how much water is there inside a tank. It make beep sound like alarm when water goes too high or too low. We can make it using transistor and some other small electronic parts. It only beep when water touches two metal pieces inside the tank. In […]
Fire Alarm Circuit
Fire Alarm Circuit is very important for every home. This small thing can save life because it tell early when fire is happening. In this article we will learn how to make easy fire alarm circuit by yourself. Good for small place like home, shop or small work area where there is no need of […]
Laser Alarm Circuit for Security
This article show how to make a Laser Alarm Circuit for Security which even real spy can use it! It cost less than big expensive alarm from shop. Also it is fun to make by ourselves and is good to protect our things. What is a Laser Alarm Circuit for Security Laser alarm circuit is […]
Simple Rain Detector Alarm Circuit
This Simple Rain Detector Alarm Circuit will help from getting our clothes wet from the sudden rain. It show how to make a easy rain detector alarm circuit. This circuit uses sensor to know when it is going to rain and then it make sound to give warning. So we can take umbrella or bring […]