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 ...

Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.

The servo rotates from 0° to 180° while the ultrasonic sensor measures distances at each angle. Data is sent to the serial monitor, simulating a basic radar scanner. Open src/radar_detection.ino in ...

How They Work The design of a robotic ultrasonic system is similar to collision avoidance and parking systems in cars. For example, ultrasonic sensors are embedded on the sides of a robotic vacuum to ...

Intelligent Headlight Control System: an Arduino prototype with an LDR for ambient light sensing and an HC‑SR04 ultrasonic sensor for vehicle detection. It uses PWM to adjust LED brightness, reducing ...

A low-cost (~$100), do-it-yourself (DIY) ultrasonic water level sensor/datalogger has been designed, constructed, and tested for use in education, citizen/community science, and research settings. The ...

His concept was to move the obstacle detection out of the hands of the person. He is accomplishing this by mounting an array of ultrasonic sensors around some tennis shoes. The concept behind this ...

For example, the Chirp uses a tiny Piezoelectric Micromachined Ultrasonic Transducer (PMUT). The sensor’s membrane is driven to move up and down, pushing the air back and forth and creating ...