.light turns on when there is motion turns automatically off if there is no motion after 15 seconds COMPONENTS: .The main components are a PIR sensor , Arduino uno, dc barrel jack ,3m copper wire , ...

int sensor = 23; //Pin that the sensor is attached to int state = HIGH; // by default, no motion detected int val = 0; // variable to sensor status (value) ...

Here, you’ll learn how to interface the ultrasonic sensor with Arduino and how to write code that responds to nearby obstacles instantly with zero latency. This is crucial for the navigation of people ...

Let’s get started. Arduino code for Bidirectional Counter System The complete code for a Bidirectional counter system using Arduino is given below. It continuously checks for which sensor gets ...