Handling 220V AC directly is very dangerous, but still we need to know mains is ON or OFF. So, this 220V AC Live Detection and Interface Circuit is useful as it solves this safety problem easily. This circuit senses mains voltage safely and it sends clean logic level signal. Optocoupler is used for isolation, so […]
Simple Drummer Sound Circuit using IC 555
Today electronic sound circuits are very popular among the young generation. One such circuit which will benefit the beginners in electronic is a Simple Drummer Sound Circuit using IC 555. This circuit is made using IC 555 timer which is very cheap and easily available. It is widely used for sound and timing projects, so […]
LED Strobe Light Circuit using Arduino
First of all, strobe light is a light which blinks very fast. It goes ON and OFF again and again, because of this it looks very attractive. Nowadays, strobe lights are used at many places for example, party lights, emergency signals, warning lights and learning projects. In this LED Strobe Light Circuit using Arduino, an […]
Transistor Based LED Strobe Light Circuit
In todays world light effects are very interesting and these light effects are used in toys, decoration and are also used in warning systems. A Transistor Based LED Strobe Light Circuit is a blinking light that turns ON and OFF very fast. Therefore, it looks very attractive and is very useful. This circuit is very […]
Continuity Tester Circuit using Op-Amp
First of all, continuity testing is very important in electronics work. It helps to find broken wires easily and it also helps to check PCB tracks. Sometimes wires look good but inside they are broken, so continuity tester is used. In this project, a simple Continuity Tester Circuit using Op-Amp is designed. It uses IC […]
Transistor Based Water Level Alarm Circuit
Sometimes water tank gets full which is a common problem But we forget to switch OFF the motor, because of this water gets wasted. So, this simple Transistor Based Water Level Alarm Circuit is useful. It gives sound alert when water reaches a level. Moreover, the circuit is cheap and easy to build as it […]