[Udo Klein] took on the challenge of counting as fast as possible using an Arduino board. The quest involves a search for short-cuts that will let him drive a 20-bit counter as quickly as possible ...

Project Overview: The Automated Count Tracker is a simple Arduino-based project designed to count the number of people entering a space. It uses an ultrasonic sensor to detect a person, a buzzer for ...

We’re assuming [Toumal] was desperately bored one day, because in the depths of the Internet he found some really cool components to build a solid state Geiger counter. The Arduino and touchscreen are ...