Components Needed for Human Following Robot Using Arduino. Arduino UNO board ×1. Ultrasonic sensor ×3. L298N motor driver ×1. Robot chassis. BO motors ×2. Wheels ×2. Li-ion battery 3.7V ×2. Battery ...

Code explanation of the Arduino PIR Interfacing. The code explanation of the code is as follows. The complete code can be found at the absolute bottom of the blog. const int pirPin = 5; This line ...

The microcontroller-based concept was chosen because I wanted to scale the sensor system later to suit other applications. Here is the diagram of my Arduino infrared close proximity sensor. As you can ...