"1) Where can I find example of proper sensor calibration procedure , step by step ?
2) After many "blind" attempts all motors work correctly but I don't know exactly which procedure helped. Should I do any tests in…"
maroFX's Discussions
Motor breaks and peaks while flying.. PID or BEC ?
Started Nov 7, 2011 0 Replies 0 Likes
I finaly reached stability and desired stick reactions and my quad hovers stable (even by middle wind). But, during normal flight (when I use more sticks input) I noticed small short motor breaks…Continue
Camera parameters not available? [ac 3.0.39]
Started this discussion. Last reply by maroFX Nov 2, 2011. 2 Replies 0 Likes
I'm looking for a stable software with acces to all Camera parameters (end-point, neutral position, angular speed, reverse) in APM Planner. Which AC software version could you recommend? Currently I…Continue
PID tuning and strange behaviors: few questions
Started Oct 9, 2011 0 Replies 0 Likes
Hello everyone,It's my first forum topic. First sorry for my english :)My first quadrocopter (based on ArduCopter v2) is a little bit bigger (about 2,3kG total weight and 75cm between motor shafts,…Continue
Tags: arducopter, settings, problem, PID
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maroFX replied to maroFX's discussion Oposite motors change speed rappidly by themself ? in the group ArduCopter User GroupmaroFX replied to maroFX's discussion Oposite motors change speed rappidly by themself ? in the group ArduCopter User Group"Compass is enabled and in use. The battery cables are situated as before and my quad could flight normally (sometimes I observed only very small motor breaks and peaks ). I only changed power system for camera servos and receiver (from other BEC).
I…"
Vernon Barry replied to maroFX's discussion Oposite motors change speed rappidly by themself ? in the group ArduCopter User Group"Possible, but then the drift is due to vibrations throwing off the gyros.
Possible, but again, I think my suggestion is more prevalent and with all the posts about magnetometer self calibration issues, fixes, and suggestions, I have a feeling…"
DeveloperRandy replied to maroFX's discussion Oposite motors change speed rappidly by themself ? in the group ArduCopter User Group
"Or if Maro is not using a compass at all then the yaw will naturally drift (because it doesn't have the compass to correct it) so he would see the above behaviour."
Vernon Barry replied to maroFX's discussion Oposite motors change speed rappidly by themself ? in the group ArduCopter User Group"More likely than not, your wiring is contributing to magenetic drift so the compass thinks the machine moved when in fact it didn't. There are a lot of threads about this but the biggest problem wires are the ones from the battery to the power…"
maroFX added a discussion to the group ArduCopter User Group
Oposite motors change speed rappidly by themself ?
APM v2.5.4. I don't understand some strange motor behaviors.Maybe it's PID issue? Without touching or moving quad I could notice two oposite motors slow down rapidly after few second. Quad tries to turn fast in Z axis. It happen itself only under a half throttle value. I can compensate it for a moment with rudder stick, but then it happen again. I calibrated radio and all stick are definitely centered so what is wrong? (Stabilise Yaw P=3.0 I=0.05 )…See More
maroFX replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"Your logs look like the motors shut down for a long time. In my case there is only a short break.
Should I try to change PPM encoder if my board is the CPU2560 version?"
maroFX replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"yes, it happed in stabilize mode. I control altitude with the throttle stick but I didn't test it in other mode. Maybe someone else? "
Hans C replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"Randy,
I use APM1 and no xbee.
I hope I have the correct files that shows my problem most clearly.
When using 2.5.3 no strange behaviour related to this at all.
No changes made to the hardware or crashes.
Did the erase / reset / reload / config etc.…"
DeveloperRandy replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group
"MaroFX,
..and you're definitely in stabilize mode right? You're not in Alt-hold of course?
-Randy"
DeveloperRandy replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group
"Hans C,
Do you have any logs? Also are you using APM1 or APM2? Do you use an xbee?
thanks for the report."
maroFX replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"no I'm not. I removed also the servos and problem still exists"
maroFX replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"Exactly the same APM (2560). After shutdown all motors could start again after I changed a little thtotlle stick position. Could you repeat the test without propellers ?"
maroFX replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"I bought all electronic in www.jdrones.com, exactly CPU 2560. Is there something for updating (PPM encoder ?) or this version should work correctly ?"
maroFX replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"I know exactly what the low-cut off means :)
I made some test without propellers and all motors worked smoothly, Meanwhile I turned the frame in all direction, set throttle in full range and all seemed to be correct."
Ryan Alexander Bahr replied to maroFX's discussion all 4 motors shut down for1 sec during flight. What's that? in the group ArduCopter User Group"You have it set to low cut off?
That generally means that at low voltages (lets say when you give full thrust, 4 props all draining a battery at once) the ESC's may shut down/ slow down (depending on ESC) to protect your lipo battery. You want…"
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- About Me:
- student of mechatronics/ PhD thesis in progress at University of Technology. Photography and Windsurfing amateur.
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