This Public Address Amplifier Circuit it works like a very strong loudspeaker for our voice! When we speak on microphone then it makes our voice go very loud because of that many people can hear us good. Good for big place like school, office, stadium or parties where we want all people to hear same […]
30V 1Amp Transformerless Power Supply Circuit
This 30V 1Amp Transformerless Power Supply Circuit works like small adapter for our electronic. It takes normal high voltage electric and change it to low safe voltage to what our devices need. No big transformer is required it uses special parts like capacitor and diode to do the work. Like if we have 30V 1A […]
Simple Flip Flop Circuit
Think about small switches they only do “ON” or “OFF”. Simple Flip Flop Circuit is same like that but for electronics. It stay in two state like 0 or 1. This small switch very important it can remember stuff, keep data and help control what happen next like timing and by coordinating things. We can […]
Simple Entrance Alarm Circuit
This easy and Simple Entrance Alarm Circuit is made to protect door or way where people enter. It makes loud sound when someone walk through invisible IR light. It works good at day and night by not giving much wrong alarm. The circuit is simple and good for hobby people during nighttime. Circuit Working: Parts […]
Smoke Alarm Circuit
This Smoke Alarm Circuit is like house that has got a big nose. This circuit smells smoke in air and if smoke come it make loud alarm sound. Alarm can be buzzer, blinking light or it can be other alarm to start also. Smoke detector can work in different way one can use small light […]
Battery Charger Circuit using a Solar Panel and 220V Supply
This smart Battery Charger Circuit using a Solar Panel and 220V Supply charges the battery using sun and normal electricity. During daytime solar panel take sunlight and charge the battery. No worry if sky is cloudy or if it is night time it also uses normal 220V electricity to charge. Also it has hot backup […]