buzzer

Wireless Doorbell using Arduino and RF Module Wireless Doorbell using Arduino and RF Module

We all know of the wired doorbell systems which require wires and suitable outlets for it to work satisfactorily. As the wired…

Arduino based Morse code Generator Arduino based Morse Code Generator

Morse code is a system of communication to encode any character in two different durations of signals called Dots and Dashes.…

Arduino based Piano with Recording and Replay Arduino Based Piano with Recording and Replay

Arduino has been a boon for people who are not from the electronics background to build stuff easily. It has been a great…

Fridge Door Alarm Circuit using 555 and LDR Fridge Door Alarm Circuit using 555 and LDR

The name of the circuit itself infers the application. This circuit triggers the alarm if the door of Fridge is left open for…

School/College Quiz Buzzer Circuit using 555 Timer IC School/College Quiz Buzzer Circuit using 555 Timer IC

Quiz is an important event in any school/College institution to test the knowledge of the participants. In order to increase…

 Generating Electricity using Piezoelectric Transducer Circuit Piezoelectric Transducer Circuit and Its Applications

Certain crystals like Barium titanate, Quartz, Lithium tantalite, etc. have the property of producing electricity on applying a…

Panic Alarm Circuit using 555 Timer IC Panic Alarm Button Circuit using 555 Timer IC

A Panic Alarm Circuit is used to send an emergency signal immediately to the people in nearby location to call for help or to…

Smart Knock Detecting Door Lock Project using Arduino Uno Smart Knock Detecting Door Lock using Arduino

Security is a major concern in our day to day life, and digital locks have become an important part of these security systems.…

Playing Melodies on Piezo Buzzer using Arduino Tone() Function Playing Melodies using Arduino Tone() Function

Arduino is an excellent way to simplify and speed up your microcontroller projects, thanks to its community of developers who…