Comments on: pentium powered extra with friggin’ lasers

By: kevinin

kevinin — Tue, 19 Dec 2006 23:56:24 +0000

well, for some reason, mine (http://kevin-weibell.blogspot.com/2006/12/usb-processor-heater.html) works...

By: Dayne Batten

Dayne Batten — Tue, 19 Dec 2006 21:26:09 +0000

Just for the heck of it, I wired one 486 CPU directly to a 250 watt power supply using a supply voltage and ground pin. Gave off no heat. I think you would have to be doing some calculations or something to make it get hot. (You’d probably need to connect EVERY FREAKING power and ground pin too.)

By: madd_matt

madd_matt — Tue, 19 Dec 2006 01:11:03 +0000

Re: The coke machine hack. The vendors have always had the option to disable a refund on "empty"; this patch just makes it off-by-default.

This information comes from a coke employee.

All the vending machines in my area were updated as soon as this got on hackaday the first time, because an employee I know reads the site and went and fixed all his machines.

By: monster

monster — Sat, 16 Dec 2006 08:31:08 +0000

i was talking about the Cyrix hotplate, heres a link:

http://www.rabidhardware.net/index.php?id=44

5 watts spread out over that much surface area would do nothing, i doubt you would feel it if you held your hand to it.

the pentium cup warmer on the other hand, has a maximum of 2.5 watts, because usb only puts out 500ma, which is 0.5A @ 5v = 2.5W

i'll admit, i did not realize the hotplate one on my own, but the usb one was all me.

By: sly

sly — Sat, 16 Dec 2006 05:32:20 +0000

mmmm hd projector… *drool*

By: joelanders

joelanders — Sat, 16 Dec 2006 04:57:19 +0000

i think a 7805 needs 7v input to even work…
usb puts out 5v?

By: monster

monster — Sat, 16 Dec 2006 04:24:58 +0000

my bad paul, i meant 1 amp. the lm7805 puts out 5w if its at 100% efficiency

By: spiderwebby

spiderwebby — Sat, 16 Dec 2006 00:57:35 +0000

camera tracking software anyone?
http://www.roborealm.com
the git [joek1010] wouldent let me add this to his comments, probably because RR blows his program out of the water…

By: andrew

andrew — Sat, 16 Dec 2006 00:22:25 +0000

hmm i don’t see an lm7805, monster. link? how would that work, anyway? usb is already at 5v…

By: fishpoo

fishpoo — Fri, 15 Dec 2006 19:36:14 +0000

ive been doing the vending machine thing for months now….. yeah its theft but my motives are innocent enough :D im just doing it to explore. and its a cool party trick lol

By: tevetorbes

tevetorbes — Fri, 15 Dec 2006 16:09:28 +0000

Too bad the $10 laser needs a $150 PSU to lase…

By: monster

monster — Fri, 15 Dec 2006 09:28:17 +0000

paul, the processor hot plate is a fake, if you look at the pics there is a lm7805 voltage regulator hooked up to the hot plate, the lm7805 can only handle 1 watt.

1w is nowhere enough to cook an egg, unless you were in the desert with a magnifying glass over you.

By: ironlizard

ironlizard — Fri, 15 Dec 2006 06:36:44 +0000

That video of the vending machine hack is annoying, you’d think he could figure out what to buy first instead of going ummmmmm and looking lost for most of the clip.

By: Paul

Paul — Fri, 15 Dec 2006 06:21:00 +0000

Yeah, when I first looked at the processor mug warmer I to thought that he was somehow running power through the P1 chip, instead he has a couple beefy resistors heating up under the P1 chip with some thermal paste transfering heat to the chip.

Still a fun idea though.

By: atrain

atrain — Fri, 15 Dec 2006 06:20:20 +0000

There was someone a while ago who straped 7 cpus of this era onto a big metal plate, and connected wires to them randomly. It managed to cook eggs, but I think a 360 would be more effective.