This circuit diagram illustrates a fire and smoke detection system using an Arduino UNO R4 WiFi, MQ2 smoke sensor, and a flame sensor (fire sensor). The Arduino is the central controller that receives ...

Build a Smart Helmet using Arduino featuring alcohol detection, drowsiness alerts, theft warning, helmet-wear detection, and wireless ignition control. The engine remains OFF if any safety condition ...

On June 2, 2015, two metal-detector hobbyists aware of the area’s heritage, George Powell and Layton Davies, drove ninety minutes north of their homes, in South Wales, to the hamlet of Eye ...

Find and fix vulnerabilities Actions. Automate any workflow ...

How to use a metal detector to find bottles!

What’s really hiding beneath all that thick river grass? In this adventure, we go scuba diving with our underwater metal detectors to uncover whatever treasures—or surprises—lie below. You won’t ...

Most days, you can find Laurent Stemkens at his busy job preparing food in a restaurant kitchen. The amiable, bushy-haired 25 ...

An eight-year-old child in Canada's Ontario has managed to discover a nearly 200-year-old shipwreck by using nothing but a metal detector. Lucas Atchison made the discovery two years ago when he ...

A 27-year-old man from Australia gained traction on social media after sharing what a day in his life, living full time aboard a catamaran, looks like. Then he brought out his metal detector and ...

Scanners for loose papers have become so commonplace that almost every printer includes one, but book scanners have remained frustratingly rare for non-librarians and archivists. [Brad Mattson] ...

We repeatedly use a detector's pinpoint mode if available, or use the technique described in the instructions if not, to find where a detector thinks an object is. The best metal detectors get within ...