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Lampada omnidirezionale 41 LED 220 VAC

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Lampadina di ricambio per illuminazione generale con emissione omnidirezionale dotata di 41 Led bianchi superluminosi da 5 mm. Paragonabile ad una lampadina ad incandescenza tradizionale da 40 W ma, con soli 5 W di assorbimento e oltre 30.000 ore di vita, risulta molto più conveniente in termini di consumo e durata. Dimensioni: 47x24,4x30,5 mm compreso l'attacco E27.

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Labirinto controllato da accelerometro

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tramite Hacked Gadgets - DIY Tech Blog di Alan Parekh il 19/11/09

A simple game is always much more fun when it is spiced up with some cool electronics. The wooden tilt maze game has been around for a long time. This Marble Maze that is Remote Controlled using an Accelerometer kicks up the original game by allowing the player to interact with the game using a controller that moves the real game according to user movements. Have a look at the project build details for all of the issues that were found during the construction.

Via: Trossen Robotics

"To control the servos I used a BOE development board with a BS2 microcontroller from Parallax along with a Memsic 2125 dual-axis accelerometer as the controller. The addition of the maze transforms this project from a electro-mechanical thing-a-ma-jig to an exciting hands-on game. For this project I choose to build a maze myself using balsa wood. This would allow me complete control of the maze difficulty and dimensions and also ensures the weight is kept to a minimum. I also found wooden balls to serve as the "marbles" for the maze. It just so happens that these balls and the balsa wood walls make a fun "thunk" noise whenever they collide."



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Bulbdial redux

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tramite Hack a Day di Jakob Griffith il 15/11/09

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[Taufeeq] sent in his "Circle of Light" bulbdial clock. You may remember when we showed you Evil Mad Scientist's version a while back, and [Taufeeq] did use it as a base but he's added some of his own little touches. Some of the changes include using a PIC with an RTC chip instead of AVR, which allowed him to shrink the board down small enough to fit behind the clock face, rather than on front. He's even zipped everything up conveniently to help you build your own.


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Tester per antiautovelox

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tramite Hack a Day di Caleb Kraft il 15/11/09

F5CIV2QG1ZGO8OS.MEDIUM (Custom)

[Blacklight99] made this cool tool. It is a tester for those radar detectors that people keep in their cars. Though this seems like it would rarely be a tool we would need, it's an interesting project. Some speed guns that the police use have a "stealth" mode that makes them invisible to some detectors. This tool can tell you if your detector is vulnerable to this. While this really is just a complicated flashing LED, he notes that it could be taken further to be made into a detector that is programmable and not vulnerable to any of the stealth modes.


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4 Operating Systems for the Arduino

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tramite Liquidware Antipasto di Matt il 13/11/09
I was working in the lab, late one night, when my eyes behold an eerie sight... Yes, Halloween is a long time ago, but that stupid song is still stuck in my head. I miss Halloween. I never got to post up pictures of my skeleton running off IXM's. :-)

Anyway, I was browsing the Arduino forums and saw this cool post about DuinOS, a real-time embedded "operating system" for the Arduino.


DuinOS by RobotGroup

It's a simple little realtime OS (RTOS) built by the guys at RobotGroup (hello!), and can be downloaded here. It's meant to have a simple function scheduler, implementing a basic form of multitasking (not quite multithreading, but something like round-robin scheduling I think). That let's someone code multiple functions at a time, that get executed in turn, so that a single Arduino could be executing multiple types of "apps" or "sketches" at the same time.

Well, that's something of a stretch, but it's getting there... we won't get into context switching an RAM page swapping just yet :-)

So then that got me thinking, why not write up the other "OS's" out there for the Arduino platform. So here are the other 3 Arduino operating systems I'm aware of...


Pyxis OS by ArduinoWill

This is a graphical OS built on top of the Arduino and TouchShield platform, and is written by ArduinoWill (aka Thom). Thom is ridiculous, and extremely talented at coding. He has been prototyping some of the craziest stuff I've seen on the MegaPalm kit, DOSonChip, and the TouchShield Slide.

Ok. Here's a video of Pyxis OS in operation, which is quite ridiculous:



ArduinoWill also figured out a crazy hack to implement portrait and landscape mode...



And I'm not even going to mention the Super Mario level port:



Pretty insane... 12 fps. 0x000C. 00000110b frames per second. I'm still trying to figure out how you did this...

ArduinoMacOS by Mark

Mark managed to port a few apps to the Slide, including... um, I don't know... a GPS, Tic Tac Toe, Tetris, a Calculator, Oscilloscope, Breakout, The Matrix Screensaver, and a Canvas Drawing program. And the Control Panel. And Hex editor. And a Graphics Demo. And an analog Pin Visualizer.

And it's all zipped up over at the Open Source App Store here.


I wish I still had screen shots... I've searched my hard drive inside out, but instead, I just have the source code :-( EDIT: I finally found some pictures, and uploaded them above...


TaOS by Ziplock

Here's another lite-weight operating system, this time built by Ziplock. It's a simple embedded GUI that focuses on assigned blocks of code to little squares. In essence, it's the epitome of a miniature, lightweight script execution OS. Applications are like mini-apps.

If every operating system were written with this little overheard, I'd be running Quake on an 8 bit Motorola 6800 written in assembler...

Anyway, I digress, but the code for TaOS is all available over here.


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10 Outstanding DIY iPhone Hacks

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tramite HacknMod.com - You name it. We hack it. di Joe L il 13/11/09

The iPhone has so many built in sensors and functionalities, no wonder it's a constant target for hacks and mods. Over the years, we've compiled dozens of iPhone hacks and mods and these are the best of the bunch:

  1. DIY Multi-Room Wireless Music Remote


    With the help of some external hardware and a handheld wireless device such as an iPhone or iPod touch, you can build your own wireless music remote. It's a bit spendy if you don't already have an Iphone/iTouch and a router, but there's a step by step tutorial to guide you through the setup build.

  2. DIY iPhone Controlled Car (Complete Control)

    These guys took an iPhone and using a special app, the onboard GPS and Wifi along with some serious modding they managed to make a life size R/C car. I bet it was difficult to drive using the six-axis in the iPhone but it's still a great mod. Learn how it was done in an upcoming post. Subscribe so you don't miss it.

  3. iPhone Controlled Mazda (without gas and break)

    By tapping into his car's onboard wifi and diagnostic systems, this hacker can control his car from anywhere in the world. He's able to start the engine, pop the trunk, lock/unlock, and view all vehicle diagnostics from his iPhone. As seen in the video, electronic controls are housed in the trunk along with an Arduino to help process commands.

  4. How to View your Webcam on your iTouch or iPhone

    In this tutorial, we'll be showing you how to watch a live feed from your webcam on your iPhone or iPod touch from anywhere in the world. Setup is pretty simple, basically just download and install a windows program and the necessary app and you're ready to stream live.

  5. Build a Solar-powered iPhone Charger

    How many times has your cell phone died in the middle of the day because of its lousy battery life? You have several options: you could recharge via wall socket, via USB, through an external battery or the green way, with a DIY solar iPhone charger. Don't forget to pick up any needed supplies for this build (including solar panels) at our store!

  6. Make a Laser Matrix Projector for the iPhone


    The idea is to add some kind of projector capability to mobile phone (e.g. iPhone) that isn't too complex or expensive. Instead of using an expensive mini projector, I decided to use lasers instead to any bitmap font using a matrix of laser points, which is controlled by iPhone.

  7. How to: iPhone as a Wireless Router for your Laptop

    Transform your iPhone into a wireless router, allowing you to connect your wifi deprived laptop to the internet anywhere phone service is available. It's also perfect when you're browsing the web but the small screen is too cramped. Now you can easily switch over to your laptop for a larger viewing window.

  8. RC Car Controlled Via the Web

    Strap on a standard Linksys router to an RC car and you can wirelessly control it through the web from up to 1640 feet away. It's also equipt with a webcam and operates through a brain comprised of PIC microcontrollers or the Arduino's ATmega168. The in depth tutorial will guide you through the build.

  9. Home Automation Using the iPhone and X10

    Like most people, we're huge fans of home automation. We've even covered quite a few ways people have used Twitter to automate your home. This time, however, we'll be automating our homes by managing SmartHome's X10 home automation modules using the iPhone.

  10. The Rockband Robot iPhone.

    This guy obviously wanted to break a world record in Rockband because he built a robot to attach to his iPhone that plays it perfectly for him. It works by light sensors telling the prosthetic fingers when a note is coming up and driving a motor to press the screen and thus play the note.

Honorable Mention: How to disassemble the iPhone and unleash your hardware hacking skill.

More iPhone Projects:


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Arduino R/C Lawnmower

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tramite Instructables: exploring - tech di johndavid400 il 13/11/09
What this is:This instructable will show you how to make your Arduino into an R/C interface that you can use for just about anything requiring remote control. I?will also show you how I?built an R/C lawnmower using my Arduino, a cheap R/C transmitter and receiver pair, and a couple of electric-wheel...
By: johndavid400

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Roomba Pac-Man

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tramite Hacked Gadgets - DIY Tech Blog di Alan Parekh il 09/11/09

If you like classic video games and robots you need to have a look at this Roomba Pac-Man system. At a glance it may look like a fun game where the Roomba cleaners are being controlled by a bunch of remote controls that people are controlling. That low tech scenario could not be further from what is actually happening here. There is lots of tech making these Roomba robots play!

"By utilizing service discovery and ad-hoc networking, all of the robots operate independently and autonomously. There is no centralized controller controlling the game, each robot makes its own decisions and sends its own commands. Pac-Man is the only robot that takes human input, and this is simply in an "augmented control capacity" where user input is limited to valid directions of travel (no passing through boundaries). The laptop and GUI provided for the operator provide no computational support for the game, its simply a node that allows the operator to issue commands. A good example of the level of autonomy in the robots is when a ghost kills Pac-Man. Upon determining that it has killed Pac-Man, it issues a command to Pac-Man to let it know it was killed, and then informs all of the other ghosts that Pac-Man was killed. Pac-Man performs his death, and then informs all of the other robots that they need to reset for another round."



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