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Using Arduino to calculate Quadratic function

Turn your microcontroller into a mathematical equation solver

Learn how to program Arduino to solve quadratic equations using mathematical algorithms. Complete tutorial with code examples for creating a microcontroller-based equation calculator.

My HTPC 2.0

AMD E-350 Zacate APU brings efficient home theater computing

Building HTPC 2.0 with AMD E-350 Zacate APU for efficient home theater computing. Low-power Mini-ITX build with integrated graphics perfect for media center applications.

My DotKlok

Post-gym excitement meets purple PCB and Sure Electronics LED matrix magic

Build your own DotKlok LED matrix clock using Arduino and Sure Electronics 24x16 display. Complete DIY project with PCB, programming, and custom effects guide.

Femtoduino: an ultrasmall arduino board

Tiny powerhouse packs full Arduino compatibility in miniature form factor

Discover the Femtoduino - an ultra-small Arduino-compatible board with ATmega328P. Perfect for space-constrained projects requiring full Arduino functionality in minimal footprint.

Open Hardware Definition 1.0 Released

Establishing standards for open source hardware development and licensing

Learn about the Open Hardware Definition 1.0 release and its impact on electronics community. Understanding open source hardware standards, licensing, and collaborative development principles.

Working with LEDs and Resistors

Master Ohm's Law and current limiting for safe LED circuits

Learn how to properly use LEDs with resistors using Ohm's Law calculations. Complete electronics tutorial covering current limiting, voltage drops, and safe LED circuit design for beginners.

Building a Breathalyzer with MQ-3 and Arduino

Ten LEDs and alcohol gas sensor bring party safety to Florianópolis electronics meeting

Build an Arduino-based breathalyzer using MQ-3 alcohol gas sensor and 10 LEDs. Complete tutorial with circuit diagram, code, and step-by-step assembly instructions for DIY electronics projects.

10 Cool Things to Do in OSX Terminal

Power user tips for mastering the macOS command line

Discover 10 powerful macOS Terminal commands and tricks to boost productivity. Essential command-line tips for Mac developers, system administrators, and power users.

Ultrasonic Range Finder with Arduino

Maxbotix LV-EZ4 brings 42kHz sonar powers to your robot dreams

Learn to use Maxbotix LV-EZ4 ultrasonic range finder with Arduino. Complete tutorial for distance sensing, obstacle detection, and robotics projects with code examples and wiring diagrams.

Solving problems with phpMyAdmin on Ubuntu

Fix common phpMyAdmin installation and configuration issues on Ubuntu Linux

Troubleshoot phpMyAdmin problems on Ubuntu Linux. Complete guide to resolving common installation, configuration, and access issues with phpMyAdmin database management tool.