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Hackaday
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Profiling An Arduino

Profiling An Arduino | Hackaday | Scoop.it
In proper, high-dollar embedded development environments – and quite a few free and open source ones, as well – you get really cool features like debugging, emulation, and profiling.
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Building a Final Key

Building a Final Key | Hackaday | Scoop.it
Remembering passwords is a pain, and there’s a number of devices out there to make it easier. If you’re looking to roll your own, this guide to building a Final Key will walk you through the process.
We talked about the Final Key before.
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A Small Replacement for Large Programming Headers

A Small Replacement for Large Programming Headers | Hackaday | Scoop.it
No matter how small you make your embedded projects, you still need a way to program the MCU.
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Philippe Gassmann's comment, April 29, 12:47 PM
Le retour d'Avrel ;)
Avrel's comment, April 30, 6:40 AM
:) retour sporadique, mais retour :) J'ai des milliards de suggestions sur android !
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An Oscilloscope on your Wrist

An Oscilloscope on your Wrist | Hackaday | Scoop.it
Calculator watches were the Geek cred of the 80’s. Today everyone is getting smart watches. How can the hip Geek stay ahead? [Gabriel Anzziani] to the rescue with his Oscilloscope Watch!
Avrel's insight:

must have !

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An atmega328-based radioteletype XY scope display

An atmega328-based radioteletype XY scope display | Hackaday | Scoop.it
[Jack] tipped us about a Crossed Bananas Display (CBD) he just designed. A CBD is a tuning aid for frequency-shift keyed (FSK) modes and is basically an oscilloscope in X-Y mode.
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iOS keyboard exploit allows brute force iPad lock screen attack

iOS keyboard exploit allows brute force iPad lock screen attack | Hackaday | Scoop.it
It’s quite common to have a timed lockout after entering several bad passwords. This simple form of security makes automated brute force attacks unfeasible by ballooning the time it would take to try every possible permutation.
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Automated programming and testing jig built with Raspberry Pi

Automated programming and testing jig built with Raspberry Pi | Hackaday | Scoop.it
[Doug Jackson] makes word clocks, and he must be doing quite a bit of business. We say that because he put together a programming and test bed for the clock circuit boards.
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The beginnings of a geeky wristwatch

The beginnings of a geeky wristwatch | Hackaday | Scoop.it
Wow, we’re seeing all kinds of good stuff from NYC Resistor today. [Caleb] found this link to [Hudson's] early work on a geeky wristwatch. It is based around an HDSP-2112 eight-digit alpha-numeric display.
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Autonomous helicopter works like a Wii remote

Autonomous helicopter works like a Wii remote | Hackaday | Scoop.it
[Jack Crossfire] took one of those inexpensive indoor helicopters and made it autonomous. He didn’t replace the hardware used for the helicopter, but augmented it and patched into the remote control to make a base station.
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USB NeXT Keyboard

USB NeXT Keyboard | Hackaday | Scoop.it
[Ladyada] and [pt] had an old keyboard from NeXT, but since it used a custom protocol it wasn’t usable with modern hardware. So they built a custom device to convert the NeXT protocol to USB.
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Configurable RFID tag from 7400 logic chips

Configurable RFID tag from 7400 logic chips | Hackaday | Scoop.it
This soldering nightmare is a configurable RFID tag which has been built from 7400-series logic chips. The beast of a project results in an iPhone-sized module which can be used as your new access card for security systems that uses the 125 kHz tags.
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Malicious Raspberry Pi power strip looks a bit scary

Malicious Raspberry Pi power strip looks a bit scary | Hackaday | Scoop.it
What you see here is a Raspberry Pi shoehorned into a power strip. The idea is to leverage the power and low-cost of this board into a stealthy network observation device. It packs a similar punch as the Power Pwn but should cost at least $1100 less!
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OS X port of gqrx is the easiest way to get into software defined radio

OS X port of gqrx is the easiest way to get into software defined radio | Hackaday | Scoop.it
Many have tried to put together an easy package for running software defined radio packages on the Mac. Not many have succeeded the way [Elias]‘ port of the gqrx SDR package has.
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A DIY Atomic Force Microscope

A DIY Atomic Force Microscope | Hackaday | Scoop.it
For looking at really small stuff, an optical microscope will only go so far. Looking at things at the nanometer level, though, usually requires some sort of electron microscope, with all the hassle of vacuum chambers and high voltages.
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The Arduino Operating System

The Arduino Operating System | Hackaday | Scoop.it
While Arduino and its libraries are the quickest way to interface with a sensor and blink an LED, sometimes you shouldn’t have to write and compile code to do something exceptionally simple.
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Self-balancing Arduino does it without an IMU

Self-balancing Arduino does it without an IMU | Hackaday | Scoop.it
The miniscule size of this self-balancing robot makes it a cool project. It actually uses the motor and wheels from a small toy car. But when you look into how the balancing act is performed it gets way more interesting.
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Upgrading Cordless Drill Batteries to Lithium

Upgrading Cordless Drill Batteries to Lithium | Hackaday | Scoop.it
Cordless power tool battery replacements are expensive: you can easily spend $100 for a NiCd pack. [henal] decided to skip nickle-based cells and cut out the middleman by converting his old cordless battery packs to inexpensive hobby lithium cells.
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5 Digit Security Code Activated Relay Using Mostly Discrete Circuitry

5 Digit Security Code Activated Relay Using Mostly Discrete Circuitry | Hackaday | Scoop.it
Let’s rollback the hobby electronics calendar a few decades with [myvideoisonutube's] alarm activation control circuit using a matrix style phone keypad. The circuit is quite old using CMOS 4081 with 4 ‘AND’ gates to hardwire the access code.
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Omniwheel robot build uses a bit of everything

Omniwheel robot build uses a bit of everything | Hackaday | Scoop.it
Machinist, electronics engineer, programmer, and factory worker are all skills you can wield if you take on a project like building this omniwheel robot (translated).
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Raspberry Pi becomes a guitar effects processor

Raspberry Pi becomes a guitar effects processor | Hackaday | Scoop.it
One of the more interesting use cases for the Raspberry Pi is exploiting its DSP capabilities in interesting ways.
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Sunrise alarm clock uses DCF77 for perfect time

Sunrise alarm clock uses DCF77 for perfect time | Hackaday | Scoop.it
Here’s a sunrise alarm clock that keeps perfect time. It was designed and built by [Renaud Schleck] who also published a post detailing the process.
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Building a spectrum analyzer with parallel processing

Building a spectrum analyzer with parallel processing | Hackaday | Scoop.it
It’s the end of the semester for [Bruce Land]‘s microcontroller design class at Cornell, and the projects coming off the workbench this semester look as awesome as any before.
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OLED name badge with rechargeable LiPo cell

OLED name badge with rechargeable LiPo cell | Hackaday | Scoop.it
Here’s a project that let [Rick Pannen] try his hand with an OLED display and a rechargeable power source. He calls it OLEDuino which is a mashup of the display type and the Arduino compatible chip running the whole thing.
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[Limpkin's] new business card

[Limpkin's] new business card | Hackaday | Scoop.it
[Linkin] decided to give the whole embedded business card thing a try. Here is his finished project, a low-profile mass storage business card that doesn’t cost an arm and a leg.
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freeSoC, for when you need 68 I/O pins

freeSoC, for when you need 68 I/O pins | Hackaday | Scoop.it
Like many of us, [Jon] began his journey through the magical world of microcontrollers with an Arduino. For a beginner, the Arduino is a wonderful tool, but [Jon] quickly found himself limited by the platform.
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