Smart devices using Arduino The modern world has bestowed us with incredible technological advancements, but it has also brought about new challenges, and security is one of them. Urban areas, in particular, have witnessed a surge in burglary cases, . In this blog post, we'll delve into the creation of a Ultrasonic Burglar Alarm to fortify the security of your home. Problem: The primary challenge was the need for a reliable and affordable burglar alarm system. Traditional security systems can be prohibitively expensive and cumbersome to maintain. We set out to design a solution that would not only be effective but also accessible to anyone with a basic understanding of electronics. Introduction Our weapon of choice was the HC-SR04 Ultrasonic Sensor. This compact device utilizes ultrasonic waves to measure distance, much like the sonar systems used by ships to gauge ocean depths. By emitting ultrasonic waves and measuring the time it takes for them to bounce back, the sensor can a