Xander's Discussions
Finding the right computer/microcontroller for the job
Started this discussion. Last reply by Chris Anderson Jan 6, 2010. 4 Replies 0 Likes
Ardupilot hardware: appropriate for a UAV not using the Ardupilot software?
Started this discussion. Last reply by Paul Har Jul 7, 2009. 7 Replies 0 Likes
Tx emulator?
Started this discussion. Last reply by Xander May 6, 2009. 4 Replies 0 Likes
Xander's Page
Latest Activity
Xander commented on Sandro Benigno's blog post 'Updates on ArduCopter 3D Model'
Impressive modeling, but...is there a point to going into that much detail? If it's just for fun that's cool of course. It's just that as someone who does a good deal of modeling electro-mechanical systems for my job, I've almost…
Xander commented on Chris Anderson's blog post 'The Future of Arduino'
@John, check out the Teensy. Arduino compatible with a real USB interface. Cheap too!
Xander commented on Charles John's blog post 'The Walkera Ufo 5 is perfect for beginners'
Looks like the Parrot can be controlled by Android too now. That certainly opens up a lot more options. You can even get a netbook to run Android.
Xander commented on Melih Karakelle's blog post 'First Tests of IMUNEXT v2 controller'
I wonder why GPSs are never offered with I2C or SPI communication options. It'd be nice not to be limited to serial.
Xander commented on Chris Anderson's blog post 'RC control via WiFi (and iPhone)'
I really wish there was an inexpensive device that bundled something like the wifi shield with a wireless webcam
Xander commented on bigkahuna's blog post 'PC based autonomous boat'
While the PC route may seem cheaper right now (considering you already have many of the components), think about what will happen the first time that boat takes on water. Swapping out an arduino will cost a lot less than swapping out a mini pc. With…
Xander commented on Geoffrey L. Barrows's blog post 'User programmable sub-gram optical flow / vision sensor'
Sounds fantastic!
How were you able to measure altitude while looking down? Does that require the sensor to notice a sort of zooming in and out effect of the features it sees? Seems like that would be tough while also moving.
I look forward to…
Xander commented on iangl's blog post 'BEAM navigation'
Interesting idea... but it sort of seems like Rube Goldberg way of flying. Going analog leaves you open to all sorts of new problems. If your main concern is robustness, it wouldnt be too hard to add a watchdog timer to your digital AP and have a…
Xander commented on Chris Anderson's blog post 'Military drones beset by problems'
Honestly, I find it a bit troubling that they run into the same problems we do. I mean, I know it's a new field and these companies are learning as they go... but at that price I'd expect something a bit more thought out
Xander commented on Chris Anderson's blog post 'Daylight readable displays, perfect for a ground station'
Ric, pretty sure you won't find N130s with these screens preinstalled.
I'm a bit disappointed at the price. They kept saying that these cost no more to manufacture than conventional LCDs, and they're aiming to put them in $75…
Xander commented on Tedro's blog post 'Unibody Design "Tedrocopter"'
I like the simplicity. Though it seems to me those arms are going to be weakest along the axis where you'll be seeing the greatest forces (vertical). If you find that to be a problem, 2 layers (possibly even thinner ones) with some standoffs in…
Xander commented on Chris Anderson's blog post 'ArduCopter beta flying!'
Thanks Chris. Good to know. I'm a bit surprised the AR.Drone can't handle the outdoors better. With gyros plus optical flow running on an ARM9 it should be pretty capable. Hmm, unless the response time of the actual motors isnt…
Xander commented on Chris Anderson's blog post 'ArduCopter beta flying!'
Just curious, what was I watching here that couldn't be done with the AR.Drone?
Xander commented on Bryan's blog post 'Android to Arduino'
Here's a cheap serial bluetooth module.
I've been looking at xbee to the phone as well. Unfortunately, getting a wired serial connection to the phone can be pretty tricky (and quite possibly impossible on non-HTC phones). Having to go…
Xander replied to lionel's discussion 'iPhone 4 as Autopilot + OSD + TC/TM'
Close, but I'd say the price is still a bit prohibitively high (without contract) and I'd rather not have to deal with Apple's closed system. Hopefully this will push more phones to have gyros. In a year or two I expect we'll…
Xander commented on Ryder's blog post 'iDrone announced!'
I'm pretty sure 3G (and all cell phone transmissions) have pretty awful latency. Probably no good for doing anything like control, though fine for telemetry, updates, or a delayed video feed.
Xander commented on Jani Hirvinen's blog post 'ArduCopter Frame development'
Jani, is there currently any way to get involved in this project? I've seen a few posts about it now, but I'm not very clear on whether this is one of DIYDrones' group projects or just something you're doing with friends.
Xander commented on Gary Mortimer's blog post 'I think several people fancy one of these'
I think I see servos in there for tilting the rotors. So it should get some of the efficiency benefits of winged flight.
Xander commented on CrashingDutchman's blog post 'Hobbyking FPV Transmitter & Video Camera 1/3-inch CCD camera'
Can anyone recommend an inexpensive receiver to go along with it?
Xander commented on Marc Daniels's blog post 'Palm GCS Continued'
Just curious, what method are you using for actually having the arduino control the servos? I think I've seen a few different servo libraries, some more efficient than others.
Xander's Blog
Motion Plus: Even Better Than Expected! (3 axis gyro for $20)
Posted on June 18, 2009 at 10:55am 28 Comments 0 Likes
That's right, Nintendo's Motion Plus addon is out, and inside is a 3 axis, 16 bit gryo (well, a 2 axis gyro and a 1 axis gyro). Which is way better than the 2 axis, 10 bit one I was expecting. Communicates via I2C and costs less than $20. This could be pretty revolutionary for hobby IMUs. Coupled with a Nunchuck, its a 6DOF all digital sensor for $40!
Details on the innards and protocol… Continue
Comment Wall (1 comment)
- At 3:50pm on July 11, 2009,
Earl said… - I got side tracked. Should get back at it next week.
Earl
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