Cambridge Autonomous Underwater Vehicle

October 15, 2008 by Caleb Kraft 11 Comments

The Cambridge Autonomous Underwater Vehicle, built for the SAUC-E Challenge, is a fantastic example of UAV construction. The competition is to build a UAV that can complete an underwater assault course. This baby has a full computer inside it, based off of the worlds smallest full featured x86 motherboard, the Pico-Itx. It has a 1GHz EPIA PX 1000 Board, 1 GB of RAM, Wireless Network capabilities and runs Ubuntu server 8.04.

The CUAV suffered from leaks which ultimately cost it the competition, but the information on the build is fantastic. They have detailed pages upon pages of information about the Mechanical, Electronic, and Software aspects of the design. They even went back in and added notes from what they learned during the competition. The project is also outlined in much shorter form on the mini-itx website.

[thanks Vesaines]

Playstation Tank Controller

October 12, 2008 by Eliot 6 Comments

[stuart] wanted a more intuitive way to control his rover platform than the software solution he had been using. He settled on using a Playstation controller with an AVR to operate the rover wirelessly. He found a couple references for talking to the controller using SPI on a PIC and adapted that for his ATMega88. The code is available on his site. He removed the rumble motors from the controller and stuffed the chip plus the transmitter package inside. The Linx TX/RX pair are mounted to pluggable boards so he can use them on other projects. A video of the tank in motion is after the jump. Continue reading “Playstation Tank Controller” →

Inexpensive Powerful Router Based Robot

October 7, 2008 by Caleb Kraft 10 Comments

[Andrey Mikhalchuk] Has posted some great instructions on how to build an inexpensive router based robot. Starting with a Linksys WRT54GL, he takes us through the process of disassembling and modifying it to directly control servos. He has put together a custom version of OpenWRT Linux that you can download from his site. After testing to make sure everything is functional, he goes through a quick and dirty chassis build. As you can see from the picture above, there are lot of household items thrown in there such as rubber bands and zip ties. After adding a camera mounted on two servos for x y movement, he fine tunes it and lets it go.

This project looks fairly simple, cheap, and fun. It may look familiar as it is very similar to our Wifi Robot post from August.

[thanks Matt]

“Killer Zombie Drone” Is Awesome And Recycled

October 6, 2008 by Caleb Kraft 16 Comments

Usually, when someone mentions military drones, we think of something much smaller and less intimidating than this monster. This is an Airforce Phantom II, retrofitted to be a computer controlled killing machine. Able to carry 18,000 pounds of stuff that goes boom, a single computer can control up to 6 of these in formation.

Sounds scary doesn’t it? Actually, though these are capable of being offensive, they are mainly used for target practice. These are decommissioned units that have been fixed up and modified to be radio controlled.

[via BotJunkie]

ArduPilot Pro Autonomous Drone

October 5, 2008 by Jason Rollette 10 Comments

We wrote about [Chris Anderson] before when he released the Arduino based autopilot. He has since crashed his first Predator UAV, due to an underpowered motor and poor control of the v-tail only steering. He has since released a pro version of the autopilot controller, and is modifying this UAV Predator drone kit to work with it. One ATMega168 processor handles flying and the other handles GPS navigation, but because they work together, it results in a fully autonomous drone. He also has a BlimpDuino version we have covered before.

Autonomous Hovering Drones Invade Germany

October 1, 2008 by Caleb Kraft 11 Comments

We welcome the swarm of autonomous hovering robot overlords being made by students at Humboldt University. The goal of this project is to build an autonomous hovering platform that is controlled via adapted insect behavior. Navigation comes from monitoring real time inputs, such as air pressure and optical sensors, not by predefined paths and GPS coordinates. Some examples of this adapted behavior are: navigation via polarized sun light like African ants, and optical flow similar to bees.

You can see the platforms in action on Spiegel Online, but unless you understand German, you won’t get much else out of it.

If any of this seems familiar, it’s because we covered CCCamp 2007, which was near Berlin and had some very similar quadcopters. While the large quadcopter platforms have been around for a while and are steadily coming down in price, there are some new alternatives out there that are quite tempting. Anyone want to build some autonomy into this little baby?

[thanks fh]

Arduway: A Mini Segway Using The Arduino

October 1, 2008 by Jason Rollette 11 Comments

[Joe L] sent in the Arduway on the tipline. It is a robot made of Arduino and Lego NXT components based on the Segway. A software library to control LEGO NXT motors and a few sensors he used is available on SourceForge. This robot does a good job of balancing itself while moving forwards and backwards.

There is a YouTube video of it in operation after the break.
Continue reading “Arduway: A Mini Segway Using The Arduino” →