Julian Ilett has a look at a AD9833 Waveform Generator.  It looks like a nice device. Connect a microcontroller to it and use SPI to interface to it. You can set it up for square wave, sign wave or triangle wave all through SPI.  The AD9833 looks like it could be very useful whenever you need to easily generate specific frequencies. The module that Julian is using was under $7 with free
Photoinduction has taken apart his Nd YAG Laser. This is a complex beast of a system, I wonder what this thing cost new! He goes over some of the theory behind how the system works and demonstrates some of the parts from his huge laser system. There is some damage to this system, looks like there was probably a water cooling issue or just a loose electrical connection that
You might have seen the Plasma Speaker before, this is the Flame Speaker by TX/RX Labs might not be as practical as your speakers in your living room but it sure is cool. Via: Make
Now that quadcopters are getting really popular it was just a matter of time before we put them in a ring and let them battle, Aerial Sports League’s Drone Combat is the result. Just like BattleBots but in the air. I would like to see some autonomous designs that can seek and destroy. Â “The Game of Drones Aerial Sports League is the premiere drone sports competition, showcasing pilot skills,
  If you are a welder you might want to have a close look at the TIG Perfect project/product. It uses the Parallax Propeller chip which was designed by Chip Gracey (great interview here). This looks like the optimal fit for a Propeller chip, a low volume product that has high value to people that can get use out of it. The design looks great, nice use of the
Using a Raspberry Pi Acmecorporation made this Automatic Pet Water Bowl Project. This project is designed to keep your pet bowl filled with fresh water and also gives you the ability to keep an eye on your furry friend. The designer is a native french speaker so there are a few spelling mistakes but his English is much better than my French. 🙂 “During the summer, when i leave at
Have a look at the Flamethrower Ukulele that Caleb Kraft from Make built. Might not be the project that you want to use indoors or around anything flammable that you care about. But if you have a fire extinguisher by your side this sure would be fun to build, if you are an outdoor performer this would double as good crowd control. The system uses a modified calking gun to squeeze a
