"some more details regarding the autopilot:
It's a VR Core, 32 bit, full Arduplane/copter support, featuring same capabilities of larger boards like Brain 5.2 or Pixhawk.
It weighs only 6 grams
Here attached the wiring diagram of the prototype:"
Hi all, this is my last project in co-operation with Virtual Robotix which provided me a new autopilot board to test.The plane is a Skyray from HK, and i can say the frame is very well dimensioned (loads of room inside the fuselage) and strong…
"Exactly the same servos we used on that project. While in Loiter mode, try increasing slowly STAB_ starting on pitch axis, and see if the amplitude of obscillation decrease until stopping. Then move to the roll axis and do the same.This just for…"
"What advantages you might get by adding an external rate controller in series to pixhawk ? Actually this could be a nice, redundant solution if put in parallel to pixhawk, using a multiplexer for example. "
"What are your STAB_PIT_P and STAB_ROLL_P? toilet bowl could be due to even too low stabilization PID or phase angle error, or in simple words, the input is not in "resonance" with output, thus causing the phase lag you noticed in the slow circular…"
We recently tested arducopter on a turboshaft powered helicopter. First flights proved it works extremely well (as expected :-) ), still solving some mechanical issues though.Flight controller is pixhawk, helicopter is a modified Vario XLV running a…
"so sad to read that Robert. I just say thank you for the talks we started some years ago, and for the beatiful job you have done here. This a great loss. But It's totally understandable there are other priority needs. Maybe stop in Italy for a wee…"
"Ok, I have no problems on sharing (just the firmware file you can upload onto your board). Just make sure you make a proper vibration damping pad, whatever board/number of servos you'll use. The benzin is a lawn mower :-).
Life is beatiful under…"
"Hi Jean Marie, I have my own firmware currently running good (main features are of course the 4th servo on swashplate, working both on H4 or H4X (better solution), throttle curve (slightly different from the AC3.3, and roll compensation), but I…"
"That's correct, it's flying on throttle curve, but mine is slightly different from the official one which will be in 3.3.2, it's a sort of 3 points (easily expandable to 5) , so Hovering point (corresponding to the half throttle stick position to…"
"Hi Chris, just a question, what is your headspeed? I had a look at your log, and it seems your PIDs are very well working.
I explain better my idea, if for example the M/R RPM are going up too fast, and you already are at the spot point with the P-I…"
"Paolo, I'm sorry, I have never had issues on T/R control with my helis so far. Better asking Robert or Randy, who have designed the system!
I agree with you regarding artificial horizon, but, I assume you are not looking at that instrument while…"
"So,regarding trims, make this simple test:
go to full parameter list, change AHRS_TRIM_X to 0,1745 for example. Go back to flight data and, without moving the helicopter, see what happened to the horizon...
Moreover it's not the torque itself, it's…"