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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 never had a need fo…"
Aug 2, 2010
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!"
Jul 22, 2010
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."
Jul 22, 2010
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."
Jul 15, 2010
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"
Jul 13, 2010
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…"
Jul 7, 2010
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 hea…"
Jul 7, 2010
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 ba…"
Jul 6, 2010
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"
Jul 6, 2010
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 laptops. Guess that's…"
Jul 1, 2010
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 betw…"
Jun 27, 2010
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 great.

Taylor, prett…"
Jun 26, 2010
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?"
Jun 26, 2010
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 bluetooth to…"
Jun 17, 2010
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 start seeing dirt cheap…"
Jun 9, 2010
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."
Jun 8, 2010
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