I've now read through most of the Hoverfly Gimbal threads and have seen no particular mention of the lag. The board seems to be using a DSP, so lag ought to be better than most other boards. Indeed, Hoverfly themselves are pointing out that the limitation is the mechanical side of things. I believe the video is (somewhat naively) demonstrating very poor servo response.
It's a pity too that Hoverfly don't seem to understand what's needed in a "results" demo video - what they are showing so far does nothing to convince us of the board's performance
Do we know what sensors DJI using or have they erased/potted them so we can't see? Their use of direct drive is an obvious mechanical advantage, but what do we know about their sensing and processing?
Exactly what "tried and tested theories" are you referring to? Low FSR gyros, sure. But what else? I totally agree with you about the servos, of course, but the alternatives (for now) are either too heavy, too expensive or both. Let's not forget that the Zenmuse's drive won't scale up cheaply! What would you propose for this "low-end" market?
