My father brought me a MC68HC908GP32 microcontroller so that I can spend my Easter holidays with something "productive", and today, with help from my brother and father, we did this:
We lit a led and then added another one!
Pics:
http://mike.thedt.net/images/temp/DSC00275.JPG -- One led only
http://mike.thedt.net/images/temp/DSC00277.JPG -- Two leds
I know, lighting leds isn't such a hard thing to do, (even with a microcontroller), but for me it's a begging.
I used to do this last summer, but didn't got far away. I was still doing various things with leds.
Now, I have forgotten almost everything from what I knew (that little knowledge anyway...
).
I still don't understand most of the things, but let's hope that I will in the near future...
/ 
Playing around with a microcontroller
