april:
Arduino high rise building
How many floors next?
XD XD XD The sky is the limit, my friend! I could've added 2 more floors to that building: my IR leds shield and the keypad/lcd shield. I really like the compact footprint of the UNO.
Actually, one thing to note in that high stack of shields is that I changed the ICSP headers of the ethernet and USB host shields, so I can stack them together. I also made my shield's ICSP header stackable, even though it doesn't use any of those pins.
Too bad that doing that on a Mega is a bit expensive, because of the amount of stackable headers required.