computer hacks

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computer hacks

Serial Controlled Power Outlet

November 4, 2006 by 12 Comments


[Alan] sent me his simple rs-232 controlled power outlet. He built it to turn on his laser printer when a print job appeares in the queue. The relay is directly controlled by the DTR line on the serial port. Lots of espresso machine PID conversions use them to run boilers, so he could have avoided the extra mechanical relay. [I can’t pick on him too much, my old laserwriter is on all the time.]

He tied it together with some perl to turn on the printer and get the print job going once it’s had enough time to initialize.

Happy Halloween Extra

October 31, 2006 by 8 Comments


[Update: pumpkin carved by Team Hack-A-Day member mastershake916]

We’ve got plenty of tricks around here, and I’ve got a treat coming up – you’ll hear about it in the next podcast.

[Ronald Schaten] sent me his USB LED fader. ATMega, PWM lit LEDs, he uses it to indicate status on his pvr.

[computerguru365] sent in his cell phone car charger turned USB cable

[steve] sent in this over the top C64DTV mod.

[Everett] sent along his button activated PSP shoulder lighting.Nice tiny soldering work for that on.

[Jorge] sent in his friends latest junk art metal lathe. Not an easy thing to build – Nice!

[gijs] sent me this crazy bent Casio SK-1. We’ve had a few of these on Hackaday before.

[seniorcheez] sent in his iPod shuffle dock with integrated power and tunecast.

Thinkpad Style Keyboard Light

October 30, 2006 by 14 Comments


[Sprite_tm] keeps coming up with nice work. This time he sent in his thinkpad style keyboard LED lighting solution for his toughbook. I know, you’re thinking… ‘it’s a LED…’ He used an ATtiny13 to monitor the caps lock LED. If it’s operated two times in succession, the LED is turned on and off. Nice, clean and effective.

[By the way, Part 2 of my diy projector how-to is up on engadget. Look for part 3 later Tuesday.]

Thursday Mini-extra

October 26, 2006 by 11 Comments

[Russ] sent in his Great Pumpkin computer case mod. (Non-biodegradable)

[Nuke] sent in his $10 ipod dock. It makes me think of doom for some reason.

[phnx] sent in this amusing case mod.

These have been around, but they’re excellent, so deal. Evilmadscientist.com has a couple of great pumpkins.
Check out the Cylon Jackolantern and the R/C Dalek Pumpkin

[Daedalus] sent in this one – adsl via sound card. 96kbs. The sound card is interfaced
with an audio transformer to the line at each end.

And this one just came in from [Eric]. Make a magsafe connector for thinkpads! Awesome.