List of Fun Projects

[Mr. Hasselhoff]

Post links to some of your favorite projects, and I'll update them in the OP.

Digital Window Sticker (Arduino Controlled)

A bumper-sticker sized L.E.D. matrix that displays images in sequence from an SD card, to produce an animated sign or "window sticker." Arduino controlled! Also includes Windows, Mac, and Linux code for converting .xbm image files into Digital Window Sticker files. Perfect for a shop or home window, or a fun desktop sign!


http://www.instructables.com/files/deriv/FT4/1B1C/G1OQPHAE/FT41B1CG1OQPHAE.MEDIUM.jpg

http://www.youtube.com/watch?v=_Rjp7Yn_kck

Tutorial (http://www.instructables.com/id/Digital-Window-Sticker-Arduino-Controlled/?ALLSTEPS).

[Ammoseller]

I thought about something like that, but more of a side-scrolling LED matrix display, much like a store would use to pass a message. I'd put one in the back of my car in the window, or cut out the midsection of my taillight assembly, place it in, then cover it again with the same assembly, to look inconspicuous. Time comes to night time, guy behind me is right on my ass, type in on the key pad "GET OFF MY ASS FUCKER!" Maybe do a little sequence after that, consisting of side-scrolling middle fingers.

[Mr. Hasselhoff]

I thought about something like that, but more of a side-scrolling LED matrix display, much like a store would use to pass a message. I'd put one in the back of my car in the window, or cut out the midsection of my taillight assembly, place it in, then cover it again with the same assembly, to look inconspicuous. Time comes to night time, guy behind me is right on my ass, type in on the key pad "GET OFF MY ASS FUCKER!" Maybe do a little sequence after that, consisting of side-scrolling middle fingers.
I actually thought about that, I have two sonar modules that I could use to measure distance of a car behind me. Then I could have it display their distance and speed (simply math) and if they get too close at a dangerous speed I tell them to GTFO.

[hitman47]

http://tangentsoft.net/audio/cmoy-tutorial/assy.html

Cmoy headphone amp, this is a really easy project using an Op-amp to amplify the sound but it delivers quite nice sound

http://www.diyforums.org/SSMH/

Starving Student Hybrid headphone amp, this is the one I made and it sounds great (once it works...). It's also not too hard