This project simulates a smart alert system using an HC-SR04 ultrasonic sensor, LED, and buzzer. Built and tested in the Wokwi simulator, it demonstrates how proximity detection can trigger safety ...

This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

Ultrasonic Object Detection Glove A wearable smart glove project using an ultrasonic sensor, vibration motor, and buzzer built with Arduino Uno to help visually impaired individuals detect obstacles ...

Inside the light is an Arduino Nano, which reads from the ultrasonic sensor mounted underneath the enclosure and lights up the appropriate LED depending on the car’s distance.

The project uses an Arduino to demonstrate turning a tiny LED on and off in response to being blown on, and the only components are the LED and a resistor.