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.

This one is an unusual smart home project, potentially - how to monitor a fish tank’s health with an AI-enabled ultrasonic sensor system. The detailed project is highlighted on Hackser.io and features ...

An Arduino is a much better choice than a Raspberry Pi for tasks that require real-time input and responses. While a Pi can ...

for a project I was doing to design a working RC boot with up to 10 different actions for around €0,15(hobyist cost, so can be a lot cheaper when you get parts for cheap like how factories get ...

Watch the demonstration video below to learn more about Zola’s project which uses TX and RX transducers desoldered from an HC-SR04 module, together with a pair of Arduino Uno development boards ...

Arduino DIY ultrasonic sprint timer. 10:00 am April 29, 2019 By Julian Horsey. ... I would like to see how fast I can run 100m and that’s why I build this project, it’s simple to build, ...