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 quick road test, oh it’s a simple approach to display the distance measurements on the Arduino Serial Monitor. I will use this sensor (or its latest version) in a more complex project in the next ...

Ultrasonic Sensor Measurement: The HC-SR04 ultrasonic sensor measures the distance to an object by emitting a sound wave and measuring the time it takes for the echo to return. The sensor is connected ...

In this project, we measure distance using HC-SR04 Ultrasonic sensor. First, we used the Ultrasonic Sensor as is, to calculate the distance of an object in front of it. It returns a float which ...

The Arduino board is used as a wearable. This is fitted with a module-sized set of ultrasonic sensors. The sensor allows people who are blind to effortlessly navigate their surroundings and identify ...

Arduino Uno – Powered Parking Guidance System with Ultrasonic Sensors" is a smart and innovative solution for simplifying the parking process in crowded urban environments. This paper leverages the ...

Blogs Sensor-EE Perception. Ultrasonic shoe sensors help the visually impaired. October 10, 2013 by Caleb Kraft Comments 5. ... An Arduino polls the ultrasonic sensors and provides feedback via the ...

Now, the venerable ultrasonic sensor joins the gallery of classics given a size change treatment, like the 555 timer we’ve seen two different takes on, or perhaps that one Arduino Uno.