This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...

Te-Ping Chen is based in Philadelphia, where she writes about work and work culture for The Wall Street Journal. Her stories often cover how work is changing and how people find meaning in their ...

Whether you use an armband or chest strap, add some smarts to your exercise and training routine with one of the best heart rate monitors we've tested. I'm PCMag's managing editor for consumer ...