Low-cost ARM7 Prototyping

September 10, 2009 by Mike Szczys 27 Comments

Do you find that the capabilities of your current microcontrollers are holding you back when you try to take over the world? Moving up to ARM7 architecture will put your projects in the same arena with the iPod and the Nintendo DS.

The BlueBoard-lpc214x is a prototyping board with a lot to offer. It incorporates two RS232 connections, USB, VGA, SD card slot, piezo buzzer, JTAG, audio out, PS2 keyboard connector, and a 2-line character LCD. The processor is an NXP Semiconductor LPC2148 with 512KB of programming space and 32+8KB of ram. The board also includes a 256KB i2c eeprom. This is a lot of prototyping power, but the low purchase price knocks our socks off: $40.90! Sadly, shipping would cost us another $20.43 but that’s still a lot of functionality for around $60.

Sample code and schematic are available for download. All of the pins for the microcontroller have jumpers and there are rows for pin headers around the processors if you want to patch in your own hardware. We’ve seen other ARM boards that make use of pre-existing shields. We would love to see someone remove the processor and implement Arduino-like shields for different processors outside of the LPC214x series. Promo video after the break. Continue reading “Low-cost ARM7 Prototyping” →

In-depth MAME Cocktail Cabinet Build

September 9, 2009 by Mike Szczys 16 Comments

mamebuild31_sm

Recently, a friend of ours got married who is a Ms. Pac-Man fanatic. His best man set out to fulfill the groom’s dream of owning a Ms. Pac-Man cocktail cabinet. The problem is that the unit he was after was selling for $2500. It’s great to buy the real thing (and with guest contributions he did,) but if it’s not available consider building your own.

[Alex] has put together a comprehensive guide for building a MAME cocktail cabinet. Unlike the mini-cabinet we saw last week, this is intended to be used sitting down and features controls on more than one side. His guide details the use of an original arcade CRT or an LCD flat panel, high-end controls via an I-Pac 4 controller, and a PC running MAME and MaLa software for Windows. The result is a professional looking build with controls on three sides of the table.

[via Gizmodo]

Drilling Precise Grids

September 9, 2009 by Mike Szczys 13 Comments

precision_hole_drilling

Drilling precise grids without a CNC machine can be tough to pull off. [Ookseer] has come up with a nifty method for dilling aligned holes with a drill press. He uses a right-angle jig on a Dremel drill press with stacks of business cards as spacers. The same number of cards is added between the substrate and the jig to space each new hole evenly. This method comes in handy when drilling grids in an enclosure for speakers, temperature sensors, or for an aesthetically pleasing design.

Apple Gives C64 Emulator The Boot

September 9, 2009 by Mike Szczys 37 Comments

apple_boots_c64_emulator

After making it to the top 20 in most regions, Apple has removed the c64 emulator for the iPhone from the App Store. Apparently the thorough app review process didn’t discover that the BASIC system had not been removed from the app, but was instead merely hidden.

Another revision of the emulator has been submitted for review but how long will that take? What is the review process for if they’re not looking deep enough to find specific functions they don’t want an app to have? Approving apps and pulling them a few days later is another Hot Coffee waiting to happen.

[POCKET GAMER via Slashdot]

Rotating IPhone Dock From Legos

September 9, 2009 by Mike Szczys 8 Comments

lego_rotating_iphone_dock

Hot on the heels of the aluminum dock and the Lego camera mount, [Steve] sent in his iPhone/iPod Touch dock made out of Lego bricks. It’s very stylish with a black and grey theme but we think the function makes this DIY spectacular. In the design [Steve] has included the ability to rotate the cradle so that the iPhone can be presented either vertically or horizontally. A step-by-step guide is not yet available but resourceful Lego lovers should be able to build this using his flickr set.

Windows 7 And Vista Crash Via SMB Exploit

September 9, 2009 by Mike Szczys 40 Comments

vista_dx10_bsod

[Laurent Gaffié] has discovered an exploit that affects Windows Vista, Windows 7, and possibly Windows Server 2008 (unconfirmed). This method attacks via the NEGOTIATE PROTOCOL REQUEST which is the first SMB query sent. The vulnerability is present only on Windows versions that include Server Message Block 2.0 and have the protocol enabled. A successful attack requires no local access to the machine and results in a Blue Screen of Death.

[Laurent] has a proof of concept available with his writeup in the form of a python script (please, white hat use only). There is no patch for this vulnerability but disabling the SMB protocol will protect your system until one is available.

Update: According to the Microsoft advisory this vulnerability could lead to code execution, making it a bit worse than we thought. On the bright side, they claim that the final version of Windows 7 is not open to this attack, only Windows Vista and Windows Server 2008.

[via Full Disclosure]

[picture: Inquirer]

Build Your Own Browser Extensions For Google Chrome

September 8, 2009 by Mike Szczys 6 Comments

[Ryan] posted a writeup on developing extensions for Google Chrome. The extension system utilizes HTML with a JavaScript API which is still sparsely documented. After taking us through his twitter bar extension project, he concludes that the Chrome extensions are not nearly as versatile as what we’re used to seeing with Firefox. That being said, this is a move in the right direction for the young browser.

[related: Google Chrome roundup]