Paddle Controller For GPU Overclocking

August 25, 2011 by Mike Szczys 10 Comments

[Fred] likes to squeeze every cycle possible out of his graphics card. But sometimes pushing the clock speed too high causes corruption. He figured out a way to turn a knob to adjust the clock speed while your applications are still running.

The actuator seen above is a Griffin Powermate 3.0. It’s a USB peripheral which is meant to be used for anything you can imagine. [Fred] uses an AutoHotKey script that he wrote to capture the input from the spinner, process that information, then adjust GPU clock speed in the background. Since the clock on his ATi Radeon 5800 can be adjusted using the AMD GPU clock tool, it’s an easy choice for this application. Now better graphics are at the tips of his fingers. See for yourself in the video after the break.

Of course if you don’t want to shell out for the fancy hardware you could always build your own paddle controller.

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More FrankenKindle Progress

August 24, 2011 by Mike Szczys 7 Comments

[Glenn] sent us an update on his FrankenKindle project. You might remember this hack from back in July. [Glenn] is modding the device to make it easier for his sister, who has Cerebral Palsy, to use.

The latest revision adds a case for the hardware. The silver button pad is what remains of the V.Reader (a children’s toy), having had the screen portion hacked off. The case provides a stable base for the reader and buttons, holding them at a nice angle for easy use. There’s just a bit of cable routing that needs to be finished to protect some fragile connections. The picture above does show the circuit board to the side, but there is a place for it around back.

In the video after the break [Glenn] mentions that the response to keypresses is a little sluggish. Sure, some of this is Kindle’s own delay when refreshing the ePaper display. But we can’t help but think the code running on the Teensy could also be optimized. We’ve asked him to post his code if he wants some tips, so check back and help out if you can.

We do have one feature suggestion for him. The Kindle keyboard no longer functions because that flat cable coming out the side is what connects to it. It’s quite easy to add a PS/2 keyboard port to a microcontroller. That would be a nice addition to the FrankenKindle as it would make things like shopping for books a bit easier.

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PS2 To USB Keyboard Converter Also Logs Your Keystrokes

August 16, 2011 by Mike Szczys 15 Comments

[Shawn McCombs] is up to no good with his first Teensy project. The board you see above takes the input from a PS2 keyboard and converts it to a USB connection. Oh, and did we mention that it also keeps track of everything you type as well?

From the beginning the project was intended to be a keylogger. It’s a man-in-the-middle device that could be hidden inside the case of a keyboard, making it appear to be a stock USB keyboard. Data is stored to an SD card so an attacker would need to gain access to the hardware after the data he’s targeting has been typed.

It works mostly as [Shawn] expected. He is, however, having trouble handling the CTRL, ALT, Windows, and Caps Lock keys. If this were actually being used maliciously it would be a dead giveaway. Many secure Windows machine require a CRTL-ALT-DELETE keystroke to access the login screen.

Overhaul An Old Mechanical Keyboard

August 12, 2011 by Jesse Congdon 16 Comments

Deskthority forum user [lowpoly] recently posted a writeup on his complete overhaul of an Apple M0110 mechanical keyboard. Any one familiar with the satisfying clack of a good mechanical key under their fingers can appreciate the effort put into this project.

[lowpoly] removed the keyboard’s PCB, rewired the key matrix adding diodes, built in a teensy USB board, broke apart the mechanical switches and fit replacement springs and finally applied a generous portion of retr0bright to all of the aging plastic. Since the teensy has no mounting holes [lowpoly] had to create a mounting assembly out of some spare plastic. A usb mini cable is even fitted into the original RJ-11 connector. To compensate for the lack of PCB the key assembly was fitting with some rubber washers. To top off the whole thing some nice new rubber feet were taped to the underside of the M0110.

[lowpoly] reports that with the foam, new springs, and lack of PCB the keyboard is much quieter and easy to use. The end result is a slick retro looking modern keyboard. If you’ll excuse us we have to go rooting through some old storage bins to find our own ancient keyboards.

We have seen our share of vintage keyboard hacks which can be useful, impressive and sometimes just odd. This build keeps it down to a nice simple, functional, useful retrofit. Nice work!

God’s Own Keyboard, Now With Bluetooth

August 9, 2011 by Brian Benchoff 49 Comments

For decades a thunderous roar rose from the bowels of IBM keyboards like the animus of angry and forgotten gods. These keyboards have fallen silent of late, due only to incompatibility with newer hardware. Now, Model Ms have been given a reprieve from landfills or recycling centers because of the work of [wulax] of geekhack and his Model M Bluetooth controller board.

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Bluetooth Morse Code Keyboard For The Disabled

August 2, 2011 by Brian Benchoff 15 Comments

The team a Zunkworks wanted to build a device for people who can’t normally use a keyboard and mouse. The Bluetooth Morse code keyboard is what they came up with. This build gives the user full control over the keyboard and mouse using a single button or a sip & puff interface.

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Commodore 64 USB Controller Adapter For Your PC

July 31, 2011 by Mike Nathan 11 Comments

commodore_64_controller_usb_interface

[Frank], like many people, has a soft spot in his heart for the Commodore 64. He prefers to play his C64 games on his computer nowadays, but likes using his old school Competition Pro rather than some modern controller with remapped buttons. The only problem with using the controller is that his new computer doesn’t have any ports that accommodate its 9-pin D-sub connector.

The VICE emulator maps keyboard inputs to controller actions, so he decided to build himself a D-sub to USB adapter that implements a virtual USB keyboard. He wrote a firmware package for the Freescale MC9S08JS16L microcontroller that allows him to send keypresses to his emulator whenever he performs an action with his Competition Pro joystick.

The circuit looks easier to duplicate than some other C64 interfaces we have seen before, and as you can see in the video below, it works quite well. We imagine that this setup can be used to connect all sorts of old input devices to modern PCs with little to no tweaking.

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