[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]’ ...

Are you experiencing keyboard input lags in games on PC? Some users have reported facing delays while providing instructions through the keyboard or using the keyboard in games. In this post, we will ...

Based on Raspberry Pi Zero 2 W, the Bee Write Back writerdeck is another DIY project that should be relatively easy to ...

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 ...

Have you ever popped off the key caps on a mechanical keyboard and wondered what the different color switches underneath mean ...

This project implements a password-protected electronic door lock system using an Arduino microcontroller. A 4×4 matrix keypad is used to enter the password, while a 16×2 I2C LCD provides system ...

Switching from a conventional keyboard to an ergonomic one is a giant leap. Whether you buy a curved one-piece keyboard or a two-piece split-layout model, developing the muscle memory needed to type ...

Before discussing the details of the contents, I will show how to use sample programs for smoke testing of the soldered board. I recommend running first couple of programs in slow clock mode, so with ...