"I see a Raspberry Pi, the backside of a GPS, and what could be a telemetry radio. Looks like a follow-me box!
The SD card is required to boot the rPi, so it's probably not for video, but it could definitely be used for telemetry…"
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Jonathan Price
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Latest Activity
Jonathan Price commented on Joshua Ott's blog post Thirty Days (#19): Office IR"The FLIR uncooled camera cores are perfect for FPV and are available for four figures. I've seen ones with similar specs as above for $4K, although the price varies greatly by model and supplier.
These cameras are great for…"
Jonathan Price posted a discussionHobbyKing Buddy Discount Codes for Minim OSD 1.1 and other parts
I just got these Buddy code links from HobbyKing; anyone's free to use them until they're gone:Minim OSD v1.1 ($19.99 $18.39 US)2.5mm F:2.0 Turnigy Micro FPV Camera Lens ($7.14 $6.17)…See More
Jonathan Price commented on Jonathan Price's blog post HobbyKing Selling ArduPilot Parts"@Asaak:
That is the first discussion question on the product listing page.
You just need to match each signal on the APM (the pinout of the "old-style" 6-pin connector is here and the pinout of the "new-style" 5-pin…"
Asaak commented on Jonathan Price's blog post HobbyKing Selling ArduPilot Parts"Hi all! I bought this GPS to use it with my APM 2.5..but the first thing I noticed is that it has a 4 pin connector, instead of the 6 pin connector required for the apm to work. How do you guys connect it to the APM ? I've seen adapters that…"
Jonathan Price commented on Lorenz Meier's blog post Help Us Improving the Status Feedback of APM and PX4!"@Gerard, @Gary:
Totally agree with pretty much everything you wrote. The craft in flight should absolutely be as robust as possible, sensor fusion, clever tricks, all of it. If all it's got is one wing and a battery, it should keep…"
Jonathan Price commented on Lorenz Meier's blog post Help Us Improving the Status Feedback of APM and PX4!"Feedback is only part of the solution. Could you imagine if elevators merely notified you to the fact that someone's arm was stuck in the closing door and required a rider to press the door open button? When the correct response is obvious, we…"
Jonathan Price commented on Thomas J Coyle III's blog post Researchers increase lifespan of lithium-sulfur batteries"Lithium polymer is a type of lithium-ion battery. The thing that makes a battery specifically "lithium polymer" is that the electrolyte is contained in a solid polymer. The more-generic term "lithium-ion" includes these batteries…"
Jonathan Price commented on Chris Anderson's blog post ArduCopter developer Randy Mackay working on encrypted drone data"If anyone is interested, it is possible to implement truly secure encryption on even the weakest MCUs, (See http://ww1.microchip.com/downloads/en/AppNotes/00953a.pdf.) Although as the above example indicates, it is best undertaken by experts,…"
Jonathan Price commented on Chris Anderson's blog post ArduCopter developer Randy Mackay working on encrypted drone data"Maybe the one thing that Guardtime does actually provide is a third-party-verifiable timestamp, which is something that PKI lacks; although I can't imagine any possible application for timestamping that would be OK accepting the word of a…"
Jonathan Price commented on Chris Anderson's blog post ArduCopter developer Randy Mackay working on encrypted drone data"There is a misunderstanding in the article title. Guardtime does not (and does not claim to) provide encryption; it is a data hashing service.
You'll notice I wrote data "hashing" and not data "signing", which is the word…"
Jonathan Price replied to Bret C's discussion Plane heads off on its own after following 70 way points - need help analyzing flight in the group ArduPlane User Group"I notice that your battery leads are routed directly on top of the APM. This could be the source of your bad compass readings.
Some science: As a rough guess I would say that your craft consumes up to 20 amps and that the negative battery lead is…"
Jonathan Price commented on Matthew Beck's blog post Pilot Spots Possible Drone 1,500 Feet Above NYC's JFK Airport... FAA launches investigation"Didn't catch the comment quoting sec. 336, was TL;DR. Quite a few of us have been talking about the 400-foot ceiling like it still applies, so I don't think I'm the only one that missed it.
Just thought it throws some light on…"
Jonathan Price commented on Matthew Beck's blog post Pilot Spots Possible Drone 1,500 Feet Above NYC's JFK Airport... FAA launches investigation"Popular Science has an excellent article focusing on the legal ramifications of this event, and it mentioned something that I was totally unaware of: the model aircraft regulations are now part of federal law, and there is no altitude ceiling…"
Jonathan Price commented on Matthew Beck's blog post Pilot Spots Possible Drone 1,500 Feet Above NYC's JFK Airport... FAA launches investigation"@Charles: No prob, you're right on all those points.
Class E does permit VFR where ATC clears it.
A flight plan is only absolutely required under some circumstances, but there is such a thing as a VFR flight plan and pilots are strongly…"
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- Tell us a bit about your UAV interest
- Trying to improve open-source aeronautics.
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- Eagle, ID
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Jonathan Price's Blog
Keeping Wayward Drones is Illegal (in Italy, anyway)
Posted on March 4, 2013 at 2:30am 2 Comments 0 Likes
In a welcome contrast to the current posturing of the American media right now, the police in Bologna, Italy have affirmed that drones…
Continue Determining Altitude AGL Using Optical Flow
Posted on February 14, 2013 at 2:12am 12 Comments 5 Likes
HobbyKing Selling ArduPilot Parts
Posted on January 28, 2013 at 2:00am 109 Comments 2 Likes
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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.A list of all T3 contests is here.
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