Reverse Engineering A Syma 107 Toy Helicopter IR Protocol

August 27, 2012 by Mike Szczys 9 Comments

Half the fun of buying toys for your kids is getting your hands on them when they no longer play with them. [Kerry Wong] seems to be in this boat. He bought a Syma S107G helicopter for his son. The flying toy is IR controlled and he reverse engineered the protocol it uses. This isn’t the first time we’ve seen this type of thing with the toy. In fact, we already know the protocol has been sniffed and there is even a jammer project floating around out there. But we took a good look at this because of what you can learn from [Kerry’s] process.

He starts by connecting an IR photo diode to his oscilloscope. This gave him the timing between commands and allowed him to verify that the signals are encoded in a 38 kHz carrier signal. He then switched over to an IR module designed to demodulate this frequency. From there he captures and graphs all of the possible control configuration, establishing a timing and command set for the device. He finishes it off by building a replacement controller based on an Arduino. You can see a video of that hardware after the break.

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The ShockerDrone; A Shocking Mod For The AR Drone

August 27, 2012 by Caleb Kraft 42 Comments

You’ve all seen taser like devices built from disposable cameras. We have seen them mounted to rubber gloves, finger tips, even potato gun ammo! We had not yet seen them on a quadcopter. This was quickly remedied once we had one to play with. Meet the shockerDrone, a Parrot AR Drone with built in shocker attachment.

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Becoming Gallagher In Your Mind

August 27, 2012 by Brian Benchoff No comments

The folks at the Louisville hackerspace LVL1 created the handiest and the dandiest kitchen tool you’ve ever seen. It’s not a slicer, it’s not a dicer, or a chopper or a hopper; it’s… a Star Wars Force Trainer that blows up watermelons.

The project is called Mind Over Melon and was created by [Chris] and [Brad] at LVL1 for the CONNECT at Bernheim festival this past weekend. The idea behind the build is allowing people to explode a watermelon with their mind using a Star Wars Force Trainer EEG toy.

The build features the Force Trainer attached to an XBee module, wirelessly connected to the ground zero of watermelon destruction. When the operator of the device concentrates very hard, a series of LEDs light up and a solenoid dumps a shot of compressed CO2 into a watermelon.

[Brad] tells us instructions to build your own mental Sledge-O-Matic will be available on the LVL1 wiki shortly, but until then enjoy this video of the Mind Over Melon being featured on WHAS11 news.

S.H.I.E.L.D. Heli Carrier Brought To Life

August 26, 2012 by Caleb Kraft 34 Comments

This fantastic work by [Native18] shows a quad copter reproduction of the Heli carrier used by the Avengers. Following this thread (translated), you can follow along his thought process as well as his build process as he proceeds. The construction is mainly paper and lightweight foam, but it still manages to float and even take off from the water.

We’ve seen other aircraft carrier designs before, but not many this well polished, and none that took off from water.

[via technabob]

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The Dark Pi Rises

August 25, 2012 by Caleb Kraft 22 Comments

Ever wonder how an aerospace engineer would build a telepresence rover? Well, if [algorythmic] can be used as our reference, he’d cram a Raspberry Pi AND an Arduino into an RC truck frame. The arduino is being used for motor control while the Raspberry pi is doing the communicating back and forth to the base. He’s using a ps3 controller as his interface and has slightly modified his PS3 eye for better night viewing.

Before you start shouting that using the raspberry pi AND the arduino is massive overkill, let us remind you that people don’t necessarily go buy/build all the parts for each project with a long-term goal in mind. He could have had both sitting there and realized that he didn’t need to add parts to either of them.

With the Raspberry Pi at the helm, this opens up all kinds of possibilities for adding features to make this an autonomous vehicle. Looking around his blog a little bit, it seems he’s done some visual recognition as well as voice control in the past. This could be interesting!

The $100 Tri-copter

August 24, 2012 by Caleb Kraft 26 Comments

We’ve seen lots of budget tri-copters, but $100 seems like a heck of a deal to us! Watching this video, you can see this home made tri-copter is incredibly agile and seems to handle quite well. Whats amazing is that [hallstudio] claims that it cost roughly $100. That price is really good compared to even the cheapest multi copters out there.

Much of the manufacturing cost associated with this kind of thing has been removed as the body is just cheap wood from the local hardware store. He even did an admittedly sloppy rig for his tail rotor, not that it looks like it has hurt his performance. One cool feature is the fact that you can fold the front arms backward, allowing for the tri-copter to be shoved into a bag for easy transportation.

You can find a complete parts list on his video, but it looks like maybe his cost doesn’t figure in the cost of the radio controller. There are no build instructions, but a quick google search leads us to the rcexplorer tricopter which seems to be the template he used. There are full build details there.

[via Hackedgadgets]

Extending The Range Of The AR Drone, 2 Ways.

August 23, 2012 by Caleb Kraft 50 Comments

As I mentioned earlier, we’ve got an AR Drone to play with. One of the common mods that popped up on the internet were ways of extending the range on the AR Drone. It normally uses a local Wi-Fi connection to your phone or tablet for control and video signals. Many found this quite restrictive and have gone pretty far in extending that range.

The first and easiest was just to set up a higher power Wi-Fi Bridge where you’ll be flying. The Drone only has about 15db of wi-fi magic in it, so anything stronger than that is an improvement. There were too many variations on this to delve into the details, but as you see, there’s not much too it.

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