This project uses an HC-SR04 ultrasonic sensor to measure how close an object is. A buzzer and LED react depending on the distance, similar to a car parking sensor. < 10 cm → buzzer and LED stay on.

You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

A new category of sensing technology transforms mobile robot vision from 2D to 3D, improves safety performance and provides 50-80% cost savings compared to traditional, LiDAR-based systems and sensor ...

With her rallying cry for gender equality turning 30 this year, Mrs. Clinton says President Trump and autocratic leaders abroad are steadily dismantling decades of progress. By Lisa Lerer Three ...

As a thank you to loyal members, the National Trust has a 25 per cent concession for senior members aged 60 or over who have been members for at least three consecutive years. Save £24 or more ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Kathryn Rath Kathryn Rath is a writer covering audio, video, and smart-home ...

Abstract: Arduino-based wearable assistive system for obstacle detection for blind navigation is an innovative wearable technology designed to improve mobility and safety for the visually impaired.