With a standard old HC-SR04 ultrasonic sensor, an audio module and a servo to drive a custom gauge needle he’s made a device which can warn people around you if they’re too close for comfort.

Ultrasonic Sensor Controlled Servo Motor Project By Sandeep Yadav Project Overview This project uses an HC-SR04 ultrasonic sensor to measure the distance to an object and controls a servo motor based ...

Arduino-based radar-guided missile defense prototype using ultrasonic sensors and servo motors. ... 🧩 Modular design for easy upgrades; 🛠️ Tech Stack. Hardware: Arduino UNO, Servo Motor, Ultrasonic ...

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 ...

This research aims to develop a RADAR system using an ultrasonic sensor (HC-SR04), servo motor (SG90), and Arduino UNO. This RADAR system can detect objects in the vicinity and display information ...