Laser Maze Powered by Arduino
Pretend you're James Bond, and make your way through this laser maze. The challenge is to make it through in 3 minutes.
Arduino Weather Monitor Using YahooWeather API
Do you need to know wind direction, but don't want to go online to check? This Arduino wind-sock will solve your problem!
Arduino MP3 Alarm Clock
Arduino models before the Due aren't well known for being able to do audio, but this Arduino-based MP3 Alarm Clock can play lo-fi MP3s.
Arduino Powered Mobile Phone
A rather cool yet impractical project considering how cheap phones are these days, but you can now build your own phone with an Arduino.
Paintball Sentry Gun (or Nerf if you prefer)
This paintball sentry gun can be used to stop unwelcome intruders in their tracks. It's an open-source project and powered by Arduino.
Wireless Online Remote Chess
This chess game allows you to play with opponents across the world. It's automated, so the pieces move as if your opponent was there.
A useless machine is a box with a switch on top. Flick the switch, and a little hand will come out of the box and un-flick the switch.
Coin Operated Advice Machine
This advice machine bases its advice on how much money you put in. A lot gives you good advice, and pennies gives you rubbish advice!
Knock Knock - Wooden Arduino Knocking Calculator
Knock Knock is a wooden calculator box that is used by knocking the surface over which symbol you wish to use.
King Cobra Game Will Leave You Bleeding
The King Cobra is a game of skill and speed. If you're not fast enough, you're going to get stabbed!
Arduino Painting Machine
Here's an Arduino painting machine. It's an Arduino Due hooked up to a Samsung Galaxy Note tablet, and it's a pretty impressive project.