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Chris Anderson
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Chris Anderson's Discussions
Antenna protector and Ublox GPS antenna question
Replied 22 hours ago
problems with down loading code
Replied 1 day ago
Fitting External LEDs
Replied 1 day ago
Chris Anderson's Page
Latest Activity
Im still in England then!......mighth have to have a looksee!
Thanks Chris!
It's good to see r/c aircraft with the ability to make a kid laugh and on the other hand be used to save lives by doing recon missions as well, interesting....
Yes, the black sleeve is to protect the antenna in use. It should be a slip fit--not sure why yours isn't fitting.
:)) . oh man , the options keeps on going / , More reading .... :( thanks Chris
Thanks for your kind words and calculations, Zouhair. I cannot seem to do better than 25% efficiency with my optimizations.
Here is a video I took from near the ground station of a few climbs/descends. I had to stop as I was getting dizzy. You ca...
Congratulations Mark, that's pretty impressive performance.
But just to set the 'record' straight. Our official attempts were plagued with winds aloft, so they were shorter than we usually can do. So just for reference, here's and altitude plot b...
Maybe a soldering error with the shield? Can you load the code with the sheild on?
Eagle is free and is the best way to follow the traces. A pdf of the board won't really tell you anything, since it's a two-sided board. Download it here.
Try it without the shield.
If you're using the V2 board (blue), did you change the easystar.h file to reflect that? (line 1-1)
If you're using our adapter, you can just solder four header pins in the supplied holes and connect your FTDI cable to them.
Blimey
Are you using the shield (v1 or v2)?
If possible, you might want to also try it on another PC.
Yes MarcS, your calculation is spot on. /Mark
WOW
That is efficient usage of power... and time.
Especially the descent seems to be faster (ok, the EasyGLIDER has the name for a reason :-)
Ok, just a rough calculation of efficiency over all: m*g*h for 6000m and an estimated weight of 800g: 13...
I took advantage of a break in the poor weather and I beat not only the 4,000m barrier, but the 5,000m and 6,000m barriers!!!!
Details are:
- Easystar with Paparazzi Autopilot.
- U-blox LEA-5H Navilock GPS with ceramic patch antenna.
- 4600 mAh 3...
Simon, you might want to reload the FTDI drivers.
I think you're getting confused between folders and files. You should open Arduino, then select "open" from the file menu, then navigate to your ArduPilot code folder, then open the file "ArduPilot_Easystar_2.4.pde", which will in turn open all th...
No, it should be okay.
Profile Information
- About Me:
- I'm Editor in Chief of Wired Magazine, author of The Long Tail (Hyperion, 2006) and FREE (Hyperion, 2009) and founder of GeekDad.com and BookTour.com
- Website:
- http://longtail.com
- Hometown:
- Berkeley, California
Chris Anderson's Photos
Chris Anderson's Videos
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Chris Anderson's Blog
Arduino in the Wall Street Journal
Cool WSJ coverage of our chosen platform, which has won the open source hardware stakes so far. Excerpt:
"The Arduino represents an early entrant in the emerging open-source hardware movement, which like Linux and other open-source software projects is driven by the belief that allowing duplication is a better way to spur innovation than keeping designs under lock and… Continue
"The Arduino represents an early entrant in the emerging open-source hardware movement, which like Linux and other open-source software projects is driven by the belief that allowing duplication is a better way to spur innovation than keeping designs under lock and… Continue
Posted on November 26, 2009 at 10:13pm —
New Arduino GPS shields from Sparkfun and Adafruit
Posted on November 26, 2009 at 3:00pm — 1 Comment
Open Hardware Camp in London on Dec 4
Posted on November 26, 2009 at 6:34am — 1 Comment
Reminder: last few days to enter the T3-3 contest
The deadline for the current T3 contest (break the Stanford UAV altitude record) is Sunday the 30th, and there's no better way to use your Thanksgiving days off (if you're in the US) than to enter. We already have a number of people who have broken the record (including, just today, Mark Griffin) and they'll all get prizes, with the top prize… Continue
Posted on November 26, 2009 at 6:30am —
Location-aware, swattable helibot
Carnegie Mellon's SensorFly inlcudes a full IMU and an ultrasonic sensor in just 29 grams. Designed for interior autonomy and swarming. Impressive!
"The SensorFly is a novel low-cost controlled-mobile aerial sensor networking platform. A flock of these 29g autonomous helicopter nodes with communication, ranging and collaborative path determination capabilities, can be extremely useful in sensing sur… Continue
Posted on November 25, 2009 at 12:06pm — 4 Comments
Comment Wall (46 comments)
- At 5:58pm on July 11, 2007,
Jeffrey Johnson said…
- Great talking to you today. We are on it with using your designs here, and look forward to dovetailing our efforts. Power to the PictEarth People!
- At 9:13pm on January 2, 2008,
Dhrumil said…
- Thanks for setting this up.
- At 11:12pm on February 7, 2008,
Mark L said… - Hey Chris,
I just read your post on UAVs and I'm wondering if there's anywhere that one could purchase a pre-made UAV...couldn't find one on ebay.
I run a network of websites, www.ballerhouse.com, and am considering featuring a UAV article. Can you point me in the direction of where someone could purchase one? If so, what other info should my readers know?
Thanks!
Mark L
markl@ballerhouse.com
- At 11:17pm on February 7, 2008,
Chris Anderson said…
- The cheapest commercial one is around $7,000 (cropcam.com). The cheapest *good* one is around $10,000 (http://www.procerusuav.com/). That's why we started this site, to bring the price down below $1,000.
We're *DIY* Drones--buying one premade isn't the point ;-)
- At 5:41pm on February 28, 2008,
William Premerlani said… - Chris,
If you want to do a Q&A with me, that would be fine.
The reason for the board is that my son and I thought it would be fun to build our own board, develop theory, and write firmware. We were inspired by Maynard Hill, who came to town and gave a talk.
We got our feet wet with a rapid-prototyping board mounted on an RC truck, and then build our own board for a sailplane. We bought our parts from SparkFun. Nathan Seidle, the ownder of Sparkfun, asked me what we were doing, I told him, he offered to build a surface mount board for me.
My son and I spent a few delightful summers getting the firmware working. At the time, our goal was to play, to just do some interesting things with it, without any goal in mind. When we were done, we had something that worked to our satisfaction, Nathan asked if he could sell it, we gave him permission.
We recognized that what we had was not a full-fletched autopilot, but that it might be interesting to anyone wanting to tinker with the controller. They could build on our firmware, if they wanted, or start from stratch, if they were ambitious.
By the way, the main reason we used assembly language was that my son had never written any, and he wanted to learn. He had used lots of other languages, but not assembly.
As far as what people are doing with my board, you probably have more information than I have!! The only person I've talked to so far is a member of diydrones. All I know is that the board is selling well at SparkFun, with no complaints.
By the way, the reason the board has been backordered for so long is that the vendor of the GPS replaced their ET301 with an ET312 at the same time that SparkFun was automating their board production, resulting in some defective boards. Even after we worked out the hardware problems, there was a subtle change in the ET312 that caused some problems. Every board that SparkFun builds is tested with the full firmware running, and the boards were not passing. We finally figured out what was wrong, production is resumed, I guess they are catching up on backorders.
All of the work my son and I was deliberately done in a vacuum...we didn't do any research on what other people were doing. We made some mistakes (that was the point) and had some fun.
My background is an electrical engineer with strengths in control theory, mathematics, and theory of flight.
I work at GE's research labs, I've been there for 33 years.
You might want to do a Google on "William Premerlani" to see what I have been up to. Much of it has to do with software development...you gave me a good chuckle when you said in your review that you wondered why we hadn't used C...the answer is, it would have been too easy!!!
Bill
- At 10:52pm on March 22, 2008,
Elisa said… - any time if u like to have a wet dip & country village food, come over try our our boats,(planty of spcae for plane flys
elisa
- At 6:02pm on March 26, 2008,
T-Rex said…
- I heard you on Talk of the Nation today...great job! I did not get to hear the whole show, but definately heard the part about your "robotics" site and 3-axis accelerometers. You, my friend, rock!
By the way, thanks for the advice about starting out in R/C with a foamie...else I would not have made it past my first flight attempts.
- At 6:27pm on March 26, 2008,
- Thanks! I wanted to say "3-axis MEMS accelerometer" but I held back for the sake of the NPR audience ;-)
- At 10:44pm on April 4, 2008,
Simon Pan said… - Hey Chris,
I won honorable mention, best in category, best in engineering, 550$, and an internship offer, at the state science & engineering fair. (The winners were a guy who did computer simulations of bird flu epidemics to determine the best method to distribute a limited supply of antivirals, a girl who developed an advanced, complex robotic vision algorithm which could detect blobs in foggy areas and high altitude ranges, and a guy who figured out a method to stem the growth of certain forms of cancer, so it was a humbling experience).
I just wanted to thank you for making this website and for your great documention and projects, because without them I'd probably still be trying to figure out how to connect the GPS receiver to the Stamp.
Thanks!
- Simon
- At 8:26am on May 10, 2008,
Huckleberry said… - Thanks Chris,
Been following along for some time (geekdad) and just bought a Blubberbot for something to do over the summer holidays... thinking about the project possibilities for my kids in electronics 11/12 ... hmmm blimp racing? Anyway, great to be here.
© 2009 Created by Chris Anderson
