From your very first blinking LED to dazzling multi-color sequences, Arduino makes it easy to bring light to life. With just a board, a few LEDs, and some code, you can experiment with patterns, ...

Modern Wi-Fi routers give you a lot to work with in terms of troubleshooting issues at home. This is mainly in the form of various LED (light-emitting diodes) indicators that flash to show what ...

LED candles are neat, but they’re very suboptimal for wish-making: you can’t blow them out. Unless you take the circuit from ...

If you were to point to a single device responsible for much of Hackaday’s early success, it might be the Arduino Uno. The ...

A professional whitening treatment at the dentist’s office is the fastest and most effective way to see results, but it’s costly and time consuming. If you’re leaning toward using over-the-counter ...

Abstract: This paper proposes a blink recognition system based on frequency-modulated continuous wave (FMCW) radar. First, Fast Fourier Transform (FFT) is applied to intermediate-frequency (IF) ...