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DIY

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Suzanne Deffree
Editor
Home for DIY (do it yourself) hobbyist, hackers, and honed engineers where you can exchange ideas and design knowledge on electronics. Find answers to DIY challenges and new opportunities amongst a community of skilled electronics makers.
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Arduino-based autonomous mobile robot

The AAR Arduino Robot is a small autonomous mobile robot suited for those new to the robotics world as well as experienced Arduino fans. Read More...

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3D print your next headphones

Here's how one DIYer created a fully functional set of headphones using no traditional manufactured parts - just a 3D printer and a few raw materials. Read More...

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Audiophile heaven

See how to use the 6DOF control board to prevent electrocution inside a tube-based stereo amplifier. Read More...

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Open-source mustache-applicator to be showcased at DESIGN West

Everything is better with a mustache. That’s the thinking behind Jason Kridner’s BeagleBone Mustache App, aka BeagleStache. Read More...

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Coin-sized Arduino-compatible computer with Bluetooth LE wirelessly connects to smartphones, tablets

Wireless startup 'Open Source RF' has launched on KickStarter the world's first Arduino-compatible open-source micro-computer that can communicate wirelessly with any Bluetooth v4.0-compatible smartphone or tablet. Read More...

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8 hacks to watch at DESIGN West's Black Hat Summit

You can learn to hack into someone’s car or smartphone, build an underwater vehicle or tele-presence robot among the interesting DIY projects at DESIGN West 2013. Read More...

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Verification and Test OS supports Sitara Cortex-A8 processors on BeagleBone boards

Kozio has released a version of its dedicated Verification and Test Operating System (VTOS) for the Sitara ARM AM335x Cortex‒A8 processors from Texas Instruments with a free 30 day evaluation on low cost Beagle boards. Read More...

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Laser limbo

For an event-filled open house at our headquarters, the education team developed a challenging limbo game that uses LEDs instead of a real limbo bar. Read More...

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Simple night-light uses a photoresistor to detect dusk

You can adjust this battery-powered circuit for different levels. Read More...

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Hack into a stopwatch to make a phototimer

Two transistors create a pulse train to operate a stopwatch. Read More...

Design makes handy audible circuit tracer

Edited by Bill Travis Read More...

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Control your holiday lights with a magic wand

A magnet waved past a Hall-effect sensor does the trick. Read More...

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Build an op amp with three discrete transistors

This simple ac-coupled design inverts, runs off a single supply, and is self-biasing. Read More...

Simple circuit helps to protect a vehicle-reverse camera

Add a delay to prevent short power pulses as you shift through reverse. Read More...

Circuit keeps wandering children and pets nearby

RF signal monitor alerts you if it gets out of range. Read More...

>> SEE ALL
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Arduino-based autonomous mobile robot

The AAR Arduino Robot is a small autonomous mobile robot suited for those new to the robotics world as well as experienced Arduino fans. Read More...

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C-programmable autonomous mobile robot system at a low cost

Global Specialties' RP6v2 is a low-cost C-programmable autonomous mobile robot system designed for beginners as well as experienced electronics and software developers. Read More...

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Coin-sized Arduino-compatible computer with Bluetooth LE wirelessly connects to smartphones, tablets

Wireless startup 'Open Source RF' has launched on KickStarter the world's first Arduino-compatible open-source micro-computer that can communicate wirelessly with any Bluetooth v4.0-compatible smartphone or tablet. Read More...

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Smaller Raspberry Pi costs under $25

A smaller version of the Raspberry Pi computer built in the UK is driving the cost to under $25. Read More...

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Verification and Test OS supports Sitara Cortex-A8 processors on BeagleBone boards

Kozio has released a version of its dedicated Verification and Test Operating System (VTOS) for the Sitara ARM AM335x Cortex‒A8 processors from Texas Instruments with a free 30 day evaluation on low cost Beagle boards. Read More...

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Capacitor tuning-rod kits serve as handy design aid

Syfer Technology offers tuning-rod kits based on the company’s Hi-Q range of surface-mount capacitors to help RF design and test engineers select the right capacitor for their circuit or application without having to solder capacitors. Read More...

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Z-Wave module connects Raspberry Pi to home automation

Home control technology group Z-Wave intends to tap the potential of the popular Raspberry Pi single-board computer for applications in the realm of home automation including light control. A plug-in module connects the two worlds. Read More...

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Nine sensors provide contextual awareness in a kit

A Contextual Awareness System Development Kit (CA-SDK) by InvenSense combines nine sensors and software on a 1.71 in. x 1.46 in. PCB configured into a wearable watchband. Read More...

Circuit protection initiative yields safer, more reliable portable products

Fairchild Semiconductor is launching a series of circuit protection solutions designed to reduce risk and achieve a higher level of safety and reliability in portable designs. Read More...

OMAP and WiLink provide rich Miracast display over Wi-Fi experience

A complete solution for mobile devices designed to support Wi-Fi CERTIFIED Miracast displays full HD content on a large screen over a secure, low-latency, wireless connection. Read More...

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Chumby offers opportunity for home engineering

Because anyone can submit an app and Chumby Industries has been very open to hacking the Linux kernel, there are several ways to change the firmware with OpenEmbedded to tailor the Chumby One to your own needs. Read More...

Rummage through a Roomba: Sensor-packed vacuum robot attracts hacks

This autonomous robot packs a series of sensors and motors to not only vacuum homes the world over, but also double as a robotic platform for would-be developers. Read More...

Prying apart a portable audio player

Prying Eyes: A look inside Sandisk's Sansa M250 reveals platform minded design decisions, surprising flash-memory choices, and potential hacks. Read More...

Evaluate your application's energy-harvesting vibrational profile with a Slam Stick

To know whether your application is suitable for vibrational energy harvesting, you must determine its vibrational profile. Mide Technology's Slam Stick data logger and open-source software can ease your profiling task. Read More...

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8 hacks to watch at DESIGN West's Black Hat Summit

You can learn to hack into someone’s car or smartphone, build an underwater vehicle or tele-presence robot among the interesting DIY projects at DESIGN West 2013. Read More...

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Adding analog I/O for our serial bus sensor interface

Adding analog I/O to allow sensors to present digital information directly to our embedded microcontroller is useful to provide real world analog information like light level, temperature, pressure, voltage, current, resistance, and so on. Read More...

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Digital I/O in chunks: distribute control and status

Using serial protocols for distributed digital I/O can save time and money while increasing reliability and flexibility. Testing is simplified, and this approach makes it easy to expand and add functionality, too. Read More...

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Make your own IIC interface to a parallel character LCD

Here’s how to connect the parallel bus alphanumeric displays using a simple IIC serial scheme from your microcontroller. This article also shows how to structure firmware and drivers to create very efficient data storage of canned messages and display modes. Read More...

Project e-smart, part 1: Students convert Smart car into an EV

For a student project at the Institute for Internal Combustion Engines and Automotive Engineering at the University of Stuttgart, a commercial compact car with combustion engine was converted to an electric vehicle. Read More...

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Engineer shares how to build an electric vehicle from the ground up -- Part 1: Design choices

Frustrated by fast-rising gasoline prices, John Santini, vice president of engineering at TDI Power, decided to turn his creativity and problem-solving skills toward developing his own electric vehicle. Read More...

Engineer shares how to build an electric vehicle from the ground up -- Part 2: Specs, challenges, and future design

John Santini, vice president of engineering at TDI Power, faced many challenges during the three-year construction of his home-built EV, which, just like in any scientific effort, brought knowledge through innovation. Take a look at how the difficulties and problems evolved into a fully functional vehicle. Read More...

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High-performance HF transceiver design: A ham's perspective

High-end ham equipment reaches new levels of performance using state-of-the-art technology and design tricks Read More...

Take advantage of open-source hardware

Basing your product on a reference design or demo board can speed time to market. Read More...

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