So I removed this servo and IR sensors and use 3 ultrasonic sensors. With ultrasonic sensors, you can measure distance and use that information to navigate and follow a human target. Here’s a general ...

Interfacing an Ultrasonic Sensor with Arduino: Measures distance to an object using an HC-SR04 ultrasonic sensor. LED Flowing Lights: Creates a flowing or chasing LED effect like a marquee or Knight ...

Smart Blind Stick using Arduino Circuit Diagram. The below circuit diagram shows the complete hardware wiring setup of the Arduino-based Smart Walking Stick for the Blind people, detailing how the ...