In this project, we will see how to implement a PIR Motion Sensor using Raspberry Pi by learning how to interface a PIR Sensor with
Ultrasonic Sensors, particularly HC-SR04 Ultrasonic Sensor, are very popular among electronic hobbyists and are frequently used in a variety of projects like Obstacle Avoiding Robot,
Computers and laptops have indeed become an integrated part of our life. Whether you are building your own PC or looking for a new laptop,
Pulse Width Modulation or PWM is a technique of delivering power to loads like LEDs and Motors (PWM can also be used to encode messages).
