Peripherals Hacks

1562 Articles

Screen Saver Power Switching

November 19, 2006 by 6 Comments


This is another power control hack along the lines of the serial controlled power outlet. Instead of only managing a printer, [Brent] uses the IO lines of the parallel port to drive some SSRs in order to turn off all of his peripheral devices – think lamps, speakers, scanners, etc. He posted the whole thing over on instructables.

[Want to show off your skills? Send us a tip with your latest – or enter the Hackaday design challenge. I should have some more prizes to announce later this week. I’m just waiting for them to arrive.]

Mp3 Flash Recovery

November 16, 2006 by 10 Comments


[Bart] sent in his efforts to recover the flash data on a mysterious mp3 player he found laying about. He successfully built an interface using a AVR/ATmega setup to get access to the data. This could be a viable way to recover data from broken thumbdrives – but it’s probably easier to swap the flash chip onto another drive. The Chipquik stuff sounds interesting – cold SMD chip desoldering. Given the cost, I’m not sure just how cost effective it is compared to buying a rework station.

[If you haven’t already, check out the Hackaday Design Challenge Fabienne’s nano is one prize and I’ll be announcing more prizes as soon as I’ve got them in hand.]

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.]

Wireless Card = ARM Development Platform

October 29, 2006 by 10 Comments


[Archantos] sent us this one. The mustumbler project is actually trying to use some external hardware to make a miniature wireless stumbler. [Archantos] points out that it’s could be a cheap way to get your hands on an ARM development platform. He’s right. Just a few connections gets access to the I2C bus, a GPIO expander for I2C runs the LCD and an EEPROM is there for program storage. The software is still being sorted out, but the hardware itself is functional. If they can manage to reverse engineer the Conexant chipset, they should have a very promising platform.