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World's First Lego Autopilot
zlite writes "What's the best way to create a UAV for less than $1,000? Use the new Hitechnic gyro sensor for Mindstorms NXT to create a Lego autopilot! This one can turn a R/C plane into a drone, keeping the aircraft level and returning it to the launch area. Add a Bluetooth GPS module and a microcam and you've got a fully autonomous surveillance platform."
I believe this is illegal in the US. Please don't tell the DHS or they will ban the LEGO mindstorm as a WMD.
I used to think that unit testing missle systems would be the best job in the world. Now that I'm older I realize the best job in the world was the one I had when I was a kid where I had a big bucket of Lego bricks and the only limit was my imagination.
The department of Homeland Security has been notified. Ownership of Lego's have officially been declared a crime to be prosecuted by the Patriot Act. This support of terrorist activities will not go unchallenged! Only the Feds are allowed to spy on the populace, the populace is not allowed to own these types of things.
:(
In all seriousness now, how long do you think it will be before someone gets arrested for doing something like this. I just listened to the story about crazyskimask.com and getting arrested for just wearing a skimask and taking pictures. Welcome to our new feardom
The only change I can believe in is what I find in my couch cushions.
Add a Bluetooth GPS module and a microcam and you've got a fully autonomous surveillance platform.
I think you misspelled "cruise missile."
Dude, if the robots that overthrow humanity are made of LEGOs, my head is going to explode trying to decide how I feel about the situation.
MY LEGO assistant is only smart enough to try and grab rings and feed them into a spotwelder, but even that could be dangerous if the controller (my computer) turns to EEEVILE, as in fru-its of the deviiiiil.
Nostalgia's not what it used to be.
Hmmm, HiTechnic says gyro "will be available soon" and the Lego blog says "I haven't received the gyro sensor yet, so I've got a light sensor standing in for it in the picture, but the mechanicals are pretty much in place.". Vaporware. Cool idea, but nothing more than a cool idea at this point.
What will be interesting in all this is the complete stupidity that will follow. I work for an embedded systems contract design house. We tried to get some samples of the single chip gyros, what a royal pain! It seems somebody out there is terrified that "tear-ists" will buy the chips and build evil cruise missiles and such. Why did we try to get the parts? Because one of the guys needed to replace one in a $100 RC helicopter. So for now you can buy the helo, buy the Lego add-on, but forget about getting the gyros themselves unless you can prove you're not sellin' them to the KLF or whatever liberation front dujour. How long before some congressional idiot ("but I repeat myself" - Mark Twain) sees this and decides us lowly regular folks have no use for these devices at all?
Post some new news!
Model helicopters and model thermal soarers both have used this technology for the past 20 years. In the case of thermal soarers, which may launch at over 1k ft, an Out-of Sight (OOS) control system is essential.
What about that Canadian floating gliders to the edge of space on balloons and then having them find their way back home? http://members.shaw.ca/sonde/
What about that New Zealander making a home built cruise missile? http://www.interestingprojects.com/cruisemissile/
When I want to read history, I'll go to a history of technology board!
That's not to say that you can't tweak the firmware of the receiver or something, but it may not be _that_ easy.
Of course, 'buy a gps which lets you do altitude' is also a solution :)
add a Bluetooth GPS module and a microcam
I'd like to see a microcam video of a flight. Fly it over something interesting. If you do it in Boston, over City Hall perhaps, you'll be able to bring the entire city to it's knees, and the Mayor will be demanding $$$ from Lego. A state police helicopter, sharp shooters, the bomb squad...it'll all be on the 6 o'clock news...
I think using the lego gyro is a fantastic idea. Imagination is great. I must admit though that I am a bit confused, maybe it's me, maybe it's the way TFA was written, and I pray it's just a typo otherwise, someone is going to have a nice repair bill as an RC aircraft takes a nosedive through someone's roof.
This autopilot only controls the rudder, keeping the plane flying level when engaged and returning to the launch area.
According to WIKI http://en.wikipedia.org/wiki/Flight_controls the rudder controls yaw, not pitch or roll. So I am not sure how the rudder keeps the plane flying level. Can anyone help?
I read Slashdot for the headlines, because the headlines, unlike the articles, are usually original and never duplicated
GPS Altitude is a rough approximation at best. The system was optimized for lat/lon position on the globe, not up-down. I've stood on the Blue Ridge Parkway and watched the ground soar up and down in a hundred foot range as I looked at my eTrex.
For this reason, Garmin builds (built?) at least one eTrex unit with a barometer built in for accurate altitude readings.
100 feet of slop is not good if you're trying to land the plane automatically.
I'd imagine
you mean like one of these ?
try { do() || do_not(); } catch (JediException err) { yoda(err); }
No fate but what we make from lego.
He won't be able to do much with a single-axis gyro. Also I didn't see any mention of an accelerometer, or an altitude sensor. He would be much better off (and save some money) by learning how to solder and use real components instead of the overpriced lego stuff. For example, my current RC autopilot setup uses 2x IDG300 dual-axis gyro IC's and an ADXL330 3-axis accelerometer. Also a SiRF III 20-channel GPS module, a pressure sensor for altitude, and a set of Nordic 2.4 GHz wireless tranceivers. Right now I have everything tied into an ARM7 but a Nano or Pico-ITX might be in my future.
? products_id=741? products_id=698? products_id=8161? products_id=465? products_id=152
5-axis IMU ($109.95): http://www.sparkfun.com/commerce/product_info.php
2-axis gyro (use with above to make a 6-axis (double up on one axis) ($69.95): http://www.sparkfun.com/commerce/product_info.php
Altimeter: ($49.95): http://www.sparkfun.com/commerce/product_info.php
GPS receiver, SiRF-III ($55.95): http://www.sparkfun.com/commerce/product_info.php
And finally, 2.4 GHz 1Mbit transciever to control it ($24.95 each): http://www.sparkfun.com/commerce/product_info.php
Add a GWS slowstick RC airplane ($35) and miscellaneous electronic pieces for a grand total of $370 or so. Not to troll, but I really don't see why people invest so much in doing things in legos when there's so much real hardware out there to play with.
Spies!!! with tiny yellow heads!!!
The original generic sig.
My uncle's name is Bill. Who the hell is Bob?
Saying your "phone ran out of batteries" is like saying your "car ran out of gas tanks".
Probably, but a lot less expensive. Tho about the PDA ... for anything too far you would probably have to give it a program to follow rather than control it manually ... bluetooth, for as far as it works, only works in the general area.
GPS can be good at altitude measurements, except you need to use the P(Y) code, which is encrypted. You could get away with using carrier phase or differential or RTK but then you start getting into the realm of some quite expensive gear.
The article just talks about a bluetooth GPS module, so I'll assume something commercial that likely includes WAAS. As he says, it'll be good enough to maintain flight but if he wants to land he'll need something more.
There are only 10 kinds of people in this world... those who understand binary and those who don't
Denmark? The propaganda machine is already rolling.
Freedom pastries, anyone?
Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
Seriously though, if someone's grown up and thinks they're too cool to play with Lego, it means they've still got some growing to do.