Hardware
The hardware archive goes back to the earliest days of this site: Arduino tutorials, custom PCBs, sensors, robots, audio projects, and machines assembled because buying the finished thing would have been less interesting.
60 posts
Adding a DIY Hotspot to the Helium Blockchain
Build a DIY Helium hotspot using Raspberry Pi and LoRa gateway. Complete guide to join the Helium blockchain network, earn HNT tokens, and contribute to the IoT revolution.
My Overnight Sensation Speaker Build
Build your own Overnight Sensation speakers with custom cabinet design. Complete DIY audio project including woodworking, crossover assembly, and acoustic tuning.
Automated door system
Build an IoT automated door system using Particle Photon and relay module. Control your door remotely via smartphone when keys fail. Complete tutorial with wiring and code.
Altium Tip - Display of clearance boundaries during routing
Learn how to display clearance boundaries during routing in Altium Designer. Improve PCB design accuracy by visualizing design rule constraints in real-time while routing traces.
A Better Serial Monitor
Review of Eltima Serial Port Monitor v7.0 - professional debugging tool for Arduino and embedded development. Advanced features for serial communication analysis.
Altium Roadshow Berlin
Daniel Andrade speaking at Altium Roadshow Berlin 2017. PCB design presentation covering advanced electronics design techniques and Altium Designer workflows.
HC-RS04 NewPing Class
Build a non-blocking C++ class for multiple HC-SR04 ultrasonic sensors with Arduino. Advanced programming tutorial using NewPing library, inheritance, and timing control.
NeoPixel 24 & HC-RS04 Sonar Support
Design and 3D print a custom mount for HC-SR04 ultrasonic sensor and NeoPixel 24 LED ring. Complete project with 3D files, Arduino code, and assembly guide.
Altium Tip - Smooth edges with teardrops
Learn how to add teardrops in Altium Designer for better PCB manufacturing reliability. Improve via connections and signal integrity with professional teardrop techniques.
Analog Engineer's Pocket Reference by TI
Download free Analog Engineer's Pocket Reference from Texas Instruments. Comprehensive guide with formulas, equations, and technical data for electronics engineers and hobbyists.
Interfacing two Adafruit MMA8451 via I2C
Connect two Adafruit MMA8451 accelerometers to one Arduino using different I2C addresses. Complete tutorial with wiring, address configuration, and code examples.
Metronome v2.0
Build an electronic metronome using 555 timer IC and PCB design. Complete DIY music electronics project with Eagle CAD files, component list, and assembly guide.
The Amp Hour Podcast Interview
Listen to Daniel Andrade's interview on The Amp Hour electronics engineering podcast. Discussion covers career journey, projects, and insights into electronics design industry.
Build a 3.5mm Audio Switch
Build a DIY 3.5mm audio switch PCB to toggle between multiple audio sources. Complete tutorial with Eagle CAD files, circuit design, and assembly instructions.
Backup and Restore Raspberry Pi SD Card
Learn how to backup and restore Raspberry Pi SD cards using dd command on Linux/macOS. Complete tutorial for cloning Pi installations and data recovery.
Round corner PCB with Eagle CAD
Learn how to create rounded corners on PCB designs using Eagle CAD. Improve your board aesthetics and reduce stress concentration with professional corner rounding techniques.
Altium Designer Tips & Tricks
Essential Altium Designer tips and tricks for PCB design professionals. Improve your workflow with advanced techniques, shortcuts, and design best practices.
Arduino Crash Course: Get up and running in 1 hour
Complete Arduino crash course for beginners. Learn Arduino programming, wiring, sensors, and build a temperature-controlled mood lamp in under one hour. Perfect for Arduino beginners.
Getting Started with ARM Pro Mini
Get started with ARM Pro Mini microcontroller development. Tutorial covering mbed platform setup, programming basics, and transitioning from Arduino to ARM.
Say hello to my little friend – Arm Pro Mini
Explore the ARM Pro Mini microcontroller board with NXP ARM M0 processor. Tutorial on transitioning from Arduino to ARM architecture using mbed development platform.
Line Follower Robot with OpAmps
Build a line follower robot using LM358 OpAmps and LDR sensors without microcontrollers. Complete tutorial with circuit design, PCB files, and assembly instructions for robotics beginners.
ProtoStack Atmega32A Dev Board
Review of ProtoStack Atmega32A Development Board - complete AVR microcontroller kit with 32KB flash, external crystal, and comprehensive peripherals for embedded projects.
AD5204 Digital Potentiometer Breakout Board
Design and build an AD5204 digital potentiometer breakout board for Arduino projects. Complete tutorial with Eagle CAD files, SPI communication code, and PCB manufacturing guide.
Raspberry Pi Using Whole SD Card Memory
Learn how to expand Raspberry Pi filesystem to use the entire SD card memory. Complete tutorial using fdisk and resize2fs to maximize available storage space on your Pi when Minibian creates small partitions.
Bartop MAME Cabinet
Build your own bartop MAME arcade cabinet with 17" LCD, custom wood cutting, and USB controller modification. Complete DIY guide for creating the ultimate retro gaming experience at home.
ATmega8A Development Kit Review
Complete review of ATmega8A development kit from China. Includes ISP programmer, 16MHz crystal, LCD display, breadboard, and jumper wires. Great value for embedded development beginners.
Open Source Hardware Association
Learn about the Open Source Hardware Association (OSHWA) and their mission to promote open hardware development. Understanding certification, standards, and community collaboration in electronics.
Arduino in HighDef Macro Pictures
High-resolution macro photography of Arduino Uno board. Download free desktop wallpapers in multiple resolutions - stunning close-up shots of electronics components.
DIY Home Ubuntu NAS Server
Build your own Ubuntu NAS server using Intel D510MO fanless Mini-ITX motherboard and Atom processor. Complete DIY guide with hardware selection, acrylic case build, and software configuration for home network storage.
Dotklok + LM35 Temperature Sensor
Modify your DotKlok LED matrix clock by adding LM35 temperature sensor. Complete Arduino code tutorial for displaying temperature on 24x16 LED matrix display.
Using Arduino to calculate Quadratic function
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
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
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
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
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
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
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.
Ultrasonic Range Finder with Arduino
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.
Review: Lacie Pocket 500gb External Drive
In-depth review of LaCie Pocket 500GB external hard drive. Portable USB-powered storage solution perfect for backups, media files, and cross-platform compatibility.
Arduino Wallpapers
Download free Arduino wallpapers and desktop backgrounds. High-quality graphics featuring Arduino logo and branding for electronics enthusiasts and makers.
Another cool AVR Dev Board
Kyle Stewart's innovative vertical AVR development board for ATmega168/8 maximizes breadboard space. Features 16MHz crystal, dual voltage regulators, and ISP programming in compact design.
Simple but well made ATmega8 Development board
Review of yourITronics ATmega8 development board - simple, affordable microcontroller board using internal clock and ICSP programming. Perfect Arduino alternative for basic projects.
Say hello to Arduino's big brother, Sanguino
Meet the Sanguino - Arduino's powerful big brother featuring ATmega644P with 64K flash, 4K RAM, and 32 GPIO pins. Arduino-compatible development board for bigger projects requiring more resources.
DIY: Binary Clock with Arduino
Build a binary clock using Arduino and 13 LEDs. Learn binary number system while creating a unique timepiece. Complete tutorial with circuit diagram, code, and step-by-step assembly guide.
Temperature Sensor + Arduino
Learn how to build a temperature sensor using Arduino and LM35 precision sensor. Complete tutorial with wiring diagram, code, and serial communication setup for DIY electronics projects.
How I built My HTPC
Complete HTPC build guide using ASUS P5W DH Deluxe, Core 2 Duo E6420, and GeForce 7600 GT. Transform your living room with this custom home theater PC featuring 5.1 audio, HD video, and gaming capabilities.
Campus Party Brazil
Experience Campus Party Brazil - the ultimate technology event bringing together hackers, programmers, and innovators. Join thousands of tech enthusiasts for coding, networking, and innovation.
First post from my iphone
First blogging experience using the original iPhone. Explore mobile blogging capabilities and web browsing on Apple's revolutionary smartphone device.
Ready to get your own unlocked iPhone?
Learn about iPhone unlocking and jailbreaking to use your device with any carrier. Complete guide to iPhone freedom, risks, and benefits of unlocked smartphones.
HowTo: Make Your Own Metronome
Learn how to build your own electronic metronome using 555 timer IC and basic components. Complete DIY tutorial with circuit diagram, component list, and step-by-step assembly guide for musicians.
Building your own rounded cable
Learn how to build your own rounded IDE cables for improved computer case airflow and cleaner aesthetics. Complete DIY tutorial for custom cable creation and PC modding.
Watch the personal computer history in 15 videos
Journey through 25 years of personal computer history with 15 vintage commercials and videos. From 1984 Apple Macintosh to Windows Vista - complete computing evolution timeline.
III Lã Do Morro - Lan Party Webcam's Video
Video coverage of the III Lã Do Morro LAN party event in Florianópolis, Brazil. Gaming community comes together for multiplayer gaming, competition, and networking.
Soon, your iPod Nano could play 300,000 years of music without repetition
Explore how advancing storage technology could enable iPod Nano to store 300,000 years of music. Future of portable music players and digital storage capacity.
HowTo: Using the scanner lamp inside your computer
Learn how to repurpose a scanner lamp for creative computer case lighting. DIY tutorial for unique PC modding using recycled scanner components for custom illumination.
7 cool things to do with a symbian enabled phone
Discover 7 cool things you can do with a Symbian-enabled smartphone. Learn advanced features, apps, and tricks to maximize your Nokia Series 60 phone's capabilities.
HowTo: Blinking LEDs
Create a music-reactive LED display using TIP31 transistor and P2 audio connector. Sync 4 LEDs with Winamp audio output for a DIY sound-activated light show project.
How to make a bike charger for your iPod
Build your own bicycle-powered iPod charger using bike dynamo and electronics. Complete DIY tutorial for creating sustainable mobile charging while cycling with green energy.
External Winamp Control
Build a custom 4-button external controller for Winamp using serial port connection. Perfect for gaming sessions and hands-free music control with push-buttons and COM-port interface.
MouseMod Project
Transform an old computer mouse with LED lighting modification. Complete tutorial with circuit diagrams, resistor calculations, and step-by-step assembly for beginners in PC modding.