This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ... (within 5 cm from the HC-SR04 module), and an ear-splitting beep from the piezo-buzzer otherwise.

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...

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 ...

Ultrasonic Sensor (HC-SR04): Measures distance in centimeters. Servo Motor: Rotates the sensor from 0° to 180° and back, allowing a scanning motion. LEDs and Buzzer: Provide visual and audible ...

[Klaus] wanted some sort of aid for parking his car, and after running across a $4 ultrasonic sensor, decided to build his own speaking distance sensor (.de, Google Translation). Inside [Klaus]&#82… ...

🚨 Arduino Alarm System with Ultrasonic Sensor 🚨 I recently built a simple alarm system using an Arduino Uno and an ultrasonic sensor! The system detects motion or obstacles within a set ...