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Hack A Day (5 unread)

Custom headphones solve wire tangles

Posted: May 1st, 2010, 3:00pm MDT by Jakob Griffith

One complaint we hear about often is ear-bud’s cables getting tangled within backpacks. [Andrew] was having this “spaghetti” wire problem, and also wanted to listen to his music with ear protection on – where ear-buds are usually uncomfortable. The latter problem is fixed by placing speakers inside of folding ear protectors, and the cable is [...]
Phasor A/V PAL demo uses ATmega88

Posted: May 1st, 2010, 2:00pm MDT by Mike Szczys

Above is a new demo video called Phasor developed by [Lft]. It is run from an AVR ATmega88 and a few passive components, and the result is pretty amazing. [Lft] goes into detail about the tricks he used to get this up and running. The chip is clocked at 17.73447 MHz which is exactly four [...]
DPAC put your alarm clock to shame

Posted: May 1st, 2010, 12:20pm MDT by Mike Szczys

DPAC, the Dynamically Programmable Alarm Clock, goes far beyond what you would expect an alarm clock to do, yet we find all of its features useful. You can see there are four buttons at the bottom that control the menu scrolling. The second from the left currently reads “Sync”, a feature that the clock uses [...]
CPU as a heat sink

Posted: May 1st, 2010, 11:00am MDT by Mike Szczys

We’ve noticed that wireless routers pump out a bunch of heat. [Jernej Kranjec] wanted to make sure that he didn’t fry it once he started adding more load to his router using OpenWRT. What he came up with is the idea of using an old CPU as a passive heat sink. He applied a bit [...]
Motorcycle computer

Posted: May 1st, 2010, 8:57am MDT by Mike Szczys

Hackaday writer of yore [Will O'Brien] has been working on this hardware for his motorcycle. Speed, voltage, gear, and temperature data is displayed on a 16×2 character LCD. The speed is pulled from the bike itself and the gear is calculated by comparing engine RPM to wheel RPM. He’s using the popular DS1820 1-wire temp [...]