Hi,For a short while now I'm using a kite for lifting my camera to 500m-1000m in a city to obtain ortho imagery for mapping in OpenStreetMap. I'm planning a full photo map of the city.. unfortunately…Continue
"A little short on hard data. I'd expect some overall error estimate like least square or surface area between actual and desired path, explanation of how the actual path was obtained to exclude GPS error, and a comparison of these results…"
"Thanks. Interesting about the image degradation... I wonder how that works mathematically since a single bit error in the ciphertext is supposed to, on average, affect 50% of the decrypted plaintext, for a good cipher."
"Also by the way will the image quality also degrade in a similar way with encryption enabled? Or will transmission errors cause a total loss of the frame or blocks of the frame, as could be expected?"
"Some total end-to-end latency figure (glass to glass I think the call it) incl. rapivid and your choice of a display device would be good to have when you get around to benchmarking it. Thanks! Look promissing."
"One thing that rings an alarm here is the potential delays (bluetooth, wifi, 3G all have their levels of latency, then USB is another source of latency and then just the number of nodes between the controller and the pixfalcon). May not be an…"
"I've considered the XuGong at one point, but I have since built a few quanum Trifecta foldable pocket tricopters initially for faster flying, not quite racing but possibly having similar amount of mobility, using a micro-APM. I've…"
"Try an Oculus Rift, it has a much wider FoV making the feeling of being inside the aircraft much stronger. But, with the resolution it has it can easily simulate FatSharks, HeadPlays, SkyZones, etc. by displayng the image scaled down to use…"
"@Patrick: I was considering a $2 Arduino (as my solder-breadboard-based hat's daughterboard) as an expander for analog inputs. Arduino is pretty much as proven a design as you'll get for interfacing with hardware, but honestly it…"
"Well, I've tried software PWM long ago on an OLinuXino nano (60 MHz I think?) non-RT kernel and I was getting poor accuracy but it kinda worked, the jitter was perhaps some 100uS. On a 1GHz CPU like the RPi + RT-kernel you may be close…"
"@Laser Developer - that is perhaps a good novel idea, but a built-in IMU is just about $10 so you might want one onboard independent of any other peripherals. It all depends on the use-case, it seems ready to use packaged Flight Controllers in…"
"I think most would be totally happy with a hat that brings in an I2C MPU6050 + magnetometer + barometer, 5V protection for a few inputs for the receiver signal and a few outputs stepped up to 5V for the PWMs broken out in servo connector layout,…"
I haven't used digital servos yet. In my experience the servo's power draw is minimal. The reason I mentioned micro quads is that you generally have smaller batteries on them, and there, and additional 100mAh might be an…"
"Gary, I disagree about efficiency.
I think we can agree that, generally, a bigger prop and a bigger motor provides better effciency, so let's take that out of the equation. Let's only compare a tri-copter setup and a quadcopter setup…"
"I like how my tricopter responds to yaw input but I don't like to exaggerate. The autopilot code difference is minimal and the yaw feel is a minor concern to human pilots. When people ask me about tricopters versus quads I say in…"
"I believe the only downside of the IMU being away from the CG, in any configuration, is that at non-trivial angular rates it'll experience a centrifugal force. The force will always be in the same direction perhaps tricking the ahrs…"