DC Entries: Almost done


We finally came to a decision about the winner of the Design Challenge! (But I’m not telling you until Friday.) Before the winner is announced, there are some more entries that deserve attention.

First, there’s [Henk]‘s g-force meter. It’s based on an ATiny26 micro-controller, 30 LEDs to display the force and the ADXL103 accelerometer.

There’s an adaptation of the no parts pic programmer, by [Patrick].

[Evan] sent in his PIC prototyping board using the monster PIC18F4550.

I’ll have one more batch of entries later this week, and the winner will be announced on Friday. Yes really. I’m going to give it a few days just to make sure that all of our DNS issues have cleared up.

Robotic beer launching fridge


This robotic beer launching fridge is one of those ultimate projects that you are guaranteed to see posted all over the internet today. Robots, beer, the possibility of maiming innocent bystanders… what’s not to love? I’d be lying if I said my mechanical engineering friends and I weren’t contemplating this at many points during college. Kudos to John W. Cornwell of Duke for actually pulling it off. The mini-fridge has three servos: one to elevate beer from the 10 can magazine, one to rotate the turntable, and one for cocking. Spring power is used to catapult the beer across the room. The brains of the system is an ATMega8535 and 3 intelligent H-bridges. It’s controlled by an adapted key-less entry system. It looks like they’ve wisely placed it pointing away from the tv, but I don’t know if referring to your apartment as the “man-pit” is nearly as smart. Check out some of John’s other projects: the Mentos booby-trap and the touch activated paintball gun.

[via Dirk]