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LED Strobe Light Circuit using Arduino

Last updated on 19 January 2026 by Admin-Lavi Leave a Comment

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 […]

Filed Under: Arduino Projects, LED and Lamps

Transistor Based LED Strobe Light Circuit

Last updated on 19 January 2026 by Admin-Lavi Leave a Comment

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 […]

Filed Under: LED and Lamps, Transistor Circuits

Continuity Tester Circuit using Op-Amp

Last updated on 18 January 2026 by Admin-Lavi Leave a Comment

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 […]

Filed Under: Meters and Testers

Transistor Based Water Level Alarm Circuit

Last updated on 17 January 2026 by Admin-Lavi Leave a Comment

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 […]

Filed Under: Alarm Circuits, Indicator Circuits, Transistor Circuits, Water Level Controller

Simple Two Transistor Buzzer Circuit

Last updated on 17 January 2026 by Admin-Lavi Leave a Comment

A buzzer is a small sound making device that is used in alarms, toys, and indicators. This Simple Two Transistor Buzzer Circuit is very simple and easy to make. It uses only two transistors and therefore, it is good for beginners. Also, it works with low voltage and because of this it is safe to […]

Filed Under: Alarm Circuits, Audio Circuits, Oscillator Circuits, Transistor Circuits

12V Battery Low Voltage Alarm Circuit

Last updated on 16 January 2026 by Admin-Lavi Leave a Comment

Battery is very important in many electronic systems. However battery voltage drops with time, if voltage becomes too low then battery can get damaged. So low voltage indication is needed. Therefore, this 12V Battery Low Voltage Alarm Circuit helps to protect battery. It gives visual and sound alert and is simple and is with low […]

Filed Under: Alarm Circuits, Battery Charger Circuits

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