We used Ultrasonic sensor in many of our application to measure the distance: Arduino & Ultrasonic Sensor Based Distance Measurement Measure Distance using Raspberry Pi and HCSR04 Ultrasonic Sensor ...

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 ...

This project uses an ultrasonic sensor to measure distances in centimeters and controls a set of LEDs based on those distances. The project is designed for Arduino boards, and you can use it to build ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

The circuit components are 2 Arduino Uno, 6 servo motors, 1 ultrasonic sensor, a breadboard, and a 9V battery. The coding is done in a way that turns the servos to an angle of 90 degrees and when an ...

A switch is the most essential part of any circuit. Different circuits ... it how and what operations to perform. Arduino Uno A Touch Sensor is a very sensitive input device that detects physical ...