lol i like when he threw the screw driver at it :)

YEESH deian – so it’s old news, SO WHAT – IT’S STILL COOL! And there are those of us out here who HAVEN’T seen it elsewhere. For crying out loud – the poor writers of this Blog can’t seem to get ahead here…

Interesting hack – slightly surprised they left the sensitivity Pot inside the case completely. Sure it looks like they didn’t tamper with it any – but I can imagine situations where one would need to adjust the sensitivity to match the environment – opening it up to get at this seems a bit over the top, when they could’ve cut a hole in the case and made it externally accessible.

Sorry, I have to agree with Jared… This is a Rube Goldberg-esque approach to the problem. However, hardware hacking isn’t always practical, so I say go right ahead and make an alarm clock more accurate than NASA says… I don’t plan on doing this, but still cool.

it’s a good idea, but can be done much more simply and cheaper, i like the spring idea previousley mentioned. i think the hacker was just trying to incorperate(sp?) one of his products.

The DE-ACCM is a good choice for this project because other vibration sensors such as mercury switches or reed switches only provide open or closed switch outputs, whereas the DE-ACCM provides a continuous analog voltage directly proportional to the intensity of the vibrations. For example, a mercury switch might prove to be too insensitive to measure the small vibrations of someone banging on the table, or it might be so sensitive that it activates simply from the vibration of the alarm clock

old news by 3 days??? look, if it’s a good hack, it belongs here. hackaday doesn’t make any “first to publish” claims that I can find. a good cookbook doesn’t remove a recipe just because it’s become a staple of everyone’s repertoire. it’s still included to help out the noobs since it’s new to them.