Gender
Male
About
About Me:
I tinker with all things.
Please tell us a bit about your UAV interest
Primarily interested in flight control and telemetry systems.
Activity Feed
"There is a narrow ISM band in zone 1 around 433/434 MHz (and a few others that Gregory didn't list above), but there is certainly NOT a global ISM band spanning 414-454 MHz, or even any global ISM band in any part of that range. This device is…"
"I don't think the FAA has any jurisdiction in Canada :)"
"Robert, you mentioned you were monitoring cell voltage on a computer. Do you have any logs that you could share?"
"I did something like this many years ago, although my approach was somewhat crude.
My A/V transmitter was in the 2.4GHz band and included stereo audio. Over one of those audio channels, I sent telemetry data at 38.4kbps. Over the other channel, I…"
My A/V transmitter was in the 2.4GHz band and included stereo audio. Over one of those audio channels, I sent telemetry data at 38.4kbps. Over the other channel, I…"
"Different ESCs running different firmware can have different response characteristics to changes in throttle. Whether these would be potentially significant enough for you to notice, I can't say.
I would expect that the flight controller may be…"
I would expect that the flight controller may be…"
"@Stefan,
Cutting power would only be useful for preventing additional damage after an initial collision. The real damage comes from the energy stored in the spinning rotor, and there is very little we can do about that when an obstruction suddenly…"
Cutting power would only be useful for preventing additional damage after an initial collision. The real damage comes from the energy stored in the spinning rotor, and there is very little we can do about that when an obstruction suddenly…"
"First, I have to agree with Doug's sentiment that you should visit a local RC club. Years ago, that was exactly my first step. The hobby is cheaper and easier to get into now, and information is much more freely available courtesy of the…"
"How much will your quad weigh when it's complete, and where did you come up with 12A per motor?"
"I believe the suggestion above to reduce your PID gains is good advice. Larger props produce more thrust at a given RPM, so using larger props is somewhat analogous to increasing your control gains.
Also, your change in motors made the problem…"
Also, your change in motors made the problem…"
"Some information I posted here: http://www.diydrones.com/forum/topics/apm-2-5-and-3dr-power-module-... may specifically be helpful to you."
"The weight on the first one seems rather low compared to the batteries I'm familiar with. I would not believe the stated capacity unless I measured it myself. The two 3S batteries seem more plausible in terms of the stated weight and capacity.
I…"
I…"
"@frederic,
While I'm not specifically familiar with who may have held licenses to that spectrum previously, the issue here is space-based vs. terrestrial use. The spectrum was licensed for space-based transmissions which (by their nature) do not…"
While I'm not specifically familiar with who may have held licenses to that spectrum previously, the issue here is space-based vs. terrestrial use. The spectrum was licensed for space-based transmissions which (by their nature) do not…"
"@frederic,
The filtering requirements on GPS receivers were based not on "assumptions" about the adjacent frequency bands, but the fact that these frequencies were reserved for satellite-based transmissions. More selective filtering does require…"
The filtering requirements on GPS receivers were based not on "assumptions" about the adjacent frequency bands, but the fact that these frequencies were reserved for satellite-based transmissions. More selective filtering does require…"
"I know this is a little bit of a necro, but I wanted to post a follow-up, and I've seen a handful of posts on the topic in other threads as well.
I ended up going with the E-flite adapters ordered through my local hobby store as planned, and I've…"
I ended up going with the E-flite adapters ordered through my local hobby store as planned, and I've…"
"I think that what you're asking for is unrealistic. I did poke around at http://www.ecalc.ch/xcoptercalc.htm a bit, but I think these conditions would be out of the range of what can be reliably predicted on that site.
Your first problem is props. …"
Your first problem is props. …"
"I haven't been a member here long enough to know if others have tried this, but here are my thoughts on what you would want to do:
First, reduce the size deadzone on the throttle stick significantly. If spring centered, you don't need much of…"
First, reduce the size deadzone on the throttle stick significantly. If spring centered, you don't need much of…"
