Hackaday links: October 10, 2010

Old timey pics with a new timey camera

Update: We’ve already looked at this one… see the full article for all the details.

One way to get old-looking photographs is to use a vintage camera. Then again you can just connect a 1908 lens to a modern dslr with great results. [Thanks MS3FGX]

Cheap iPad mounting bracket

Need a way to hang your iPad but don’t want to spend some bucks? [Tumbleweed] used a $3 plate hanger to do the trick.

Hand engraving

You can get free laser engraving when you buy an iPhone but it won’t look as good as this does. [Viljo Marrandi] spent eight hours on this, but most of the time was spent resharpening tools dulled by the tough metal.

Let time prevent your computer from going idle

Want to keep your screen saver from running? No need to change settings, software, or use special hardware. Just set your mouse on an analog watch and let the moving hands jiggle it around. [Thanks Lovro]

Add-on panel brings automated vents flaps to a PC

[SXRguyinMA] built a replacement top bezel for his computer case. He wanted to add vents that would automatically open or close based on the cooling needs of the computer. With some careful measurements he modeled the parts in Sketchup and sent out for them to be cut from styrene with a water jet cutter. The parts came back looking great and the assembly of the shutters went swimmingly. The bezel also includes a lighted screen for temperature information, as well as the front USB ports, headphone and mic jacks, etc. Hidden underneath is an Arduino board and servo motor. The Arduino polls the temperature and drives the servo to adjust the fins accordingly. There’s even a supercap in the circuit that will close the vents when the PC powers down or when power is unexpectedly lost. See it in action after the break.

[Read more...]

New A4 jailbreak debacle puts the brakes on for iPad

If you’ve been waiting in the wings for the next Jailbreak to be release you should know there’s been a bit of a speed bump. [ChronicDevTeam], which has been working on an exploit for A4-based iOS devices called SHAtter, tweeted last Thursday that the fully tested, untethered, and unpatchable package knows as greenpois0n would be released today. But on Friday [Geohot], who you may remember from the PlayStation 3 Hypervisor exploit, rolled out his own mostly untested and admittedly beta jailbreak called limera1n.

So where does that leave the situation? Because [geohot] used a different exploit, the [ChronicDevTeam] decided not to release greenp0ison. If they did, it would give Apple a chance to block two different exploits. Instead they are working feverishly to incorporate, test, and repackage using the same exploit as limera1n.

If you don’t want to wait, jailbreak now, but you risk problems with an unstable exploit method that is only available for Windows.

[via @ChronicDevTeam]

Human Theremin, one step closer to cyborgs (not really)

Oh [Humberto], what will you think up next? A human Theremin you say, and it’s for Halloween? Certanly this will blow last years creepy capacitance sensing jack-o-lantern out of the water right? Eh, not really, but still cool none-the-less. By using pairs of IR LEDs and IR photo-transistors, [Humberto] makes a simplistic distance sensor. Then its just a matter of converting that light value into sound, which is accomplished by using some very clever PWM square wave hacking to make a triangle wave. Also, [Humberto] goes over the process of using fast integers to represent slow floating point numbers. While none of the project is really a new concept, it certainly is put into an easy perspective so anyone can try their hand at it. All well worth the read, or you can catch a video after the jump.

[Read more...]

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