Another day, another Arduino-based gadget. But this one is actually something you will want to wear. The Arduino Watch: Steampunk Edition has temperature, range finding, and trackball input while displaying time, games, and more with its 128 by 128 pixel OLED 16 bit display.

It plays Breakout and has the ability to display time in digital, analog or binary. Other sensors and programs can be added if you like. It can be made for around $250.

This is one of the coolest watches we’ve seen in some time. When you think Arduino, you tend to think robot projects, not watches. This Arduino based MakerBotWatch actually manages to be fresh and exciting and it’s something that any DIYer can try.

The MakerBotWatch uses an ATmega328 microcontroller to run the bootloader, while the two concentric circles of LEDs show minutes and hours. A vertical row of four LEDs adds in the additional resolution needed to get 60 minutes on the watch face. The MakerBotWatch is expected to go into production as a kit soon, but with no laser-cut bezel.

What could be better than getting robots to interpret the world of social networking for us? Why should we do all the work? That’s what robots are for. This cute little guy just sits on your desk and while he may not reply to your tweets, he understands the emotions of your friend’s tweets and whether they are happy or sad.

If he finds a “happy” tweet, the Guardian Robot raises its head and arm in triumph. It holds the pose until you give it a “high five”. (By hitting the switch in its hand.) Then the robot passes the high five on to your buddy via a reply Tweet.

This Puff Robotic Fire Fighter looks like a toy thanks to the stickers. But it’s a bit more sophisticated than that. In panic mode it’s just like a human with a fight or flight instinct. Which comes in handy as this guy is a firefighter.

Puff puts out rather than starts fires. He Scans his Head to find the Flames, then heads towards the Flame and blows it out. If he fails to blow out the Fire within 2 tries the “PANIC” mode kicks in and he backs away to save himself.