buzzer

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…