[Klaus] wanted some sort of aid for parking his car, and after running across a $4 ultrasonic sensor, decided to build his own speaking distance sensor (.de, Google Translation). Inside [Klaus]’ ...

It’s always nice to simulate a project before soldering a board together. Tools like QUCS run locally and work quite well for analog circuits, but can fall short with programmable logic. Tools like ...

// Convert time to distance in centimeters (speed of sound ≈ 0.034 cm/us, half for to-and-fro) ...

This project revisits a minimalist Pong-style arcade game built with an Arduino Uno and an 8×8 LED matrix driven by the MAX7219. Originally developed as an early learning exercise, it has now been ...