VP Kuisma
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Current calibration, how?

Started this discussion. Last reply by VP Kuisma Jan 2, 2016. 4 Replies

Do you have suggestion how to calibrate current for the power module? When I add throttle to add current flow for the measurement, copter thinks I want to fly and adjusts throttle by itself. That…Continue

yaw autotune test (3.3 20.3.)

Started Mar 20, 2015 0 Replies

Tested new autotune feature, yaw tuning. Got little weird results. After tuning finished, quad flied nicely, I landed and disarmed. Then tried to fly again, I was lucky to get thing down without…Continue

 

VP Kuisma's Page

Latest Activity

VP Kuisma replied to Dmitry Prokhorov's discussion Solution proposal for PixHawk IMU2-related BAD ACCEL HEALTH
"I got the copter back in one piece and I have had few flights now. Seems to me that bad accel warnings are little too common still. Hopefully that firmware patch brings some improvement."
Jan 3, 2016
VP Kuisma replied to VP Kuisma's discussion Current calibration, how?
"Yes, I have flipped the props. But I was not able to add throttle. However I managed to circumvent throttle problem by setting mot_spin_armed to 200. That gave me constant throttle after arming to calibrate the current monitor."
Jan 2, 2016
Joe Breznai replied to VP Kuisma's discussion Current calibration, how?
"Watch again. At about 3:37 Randy mentions that he has flipped the props over and moved each one- one arm. This will make the machine push down to the floor.  I usually put a piece of tape on the landing gear just to keep things from sliding…"
Dec 30, 2015
VP Kuisma replied to VP Kuisma's discussion Current calibration, how?
"that's what I'm trying to do. But it's not possible because pixhawk controls the throttle and it raises throttle constantly if I apply tiny bit of thrust above the idle. And idle is not enough."
Dec 30, 2015
Joe Breznai replied to VP Kuisma's discussion Current calibration, how?
Dec 30, 2015
VP Kuisma posted a discussion

Current calibration, how?

Do you have suggestion how to calibrate current for the power module? When I add throttle to add current flow for the measurement, copter thinks I want to fly and adjusts throttle by itself. That makes it impossible to get valid current reading for calibration. How to keep throttle stable?See More
Dec 30, 2015
VP Kuisma replied to Dmitry Prokhorov's discussion Solution proposal for PixHawk IMU2-related BAD ACCEL HEALTH
"Thank you for seeing all that trouble for me. At least board powered up and connected to Mission Planner. Seems to work. I can't test the board too well at the moment, copter is going to have some changes.."
Dec 19, 2015
VP Kuisma replied to Dmitry Prokhorov's discussion Solution proposal for PixHawk IMU2-related BAD ACCEL HEALTH
"Not as clean as yours after rubbing with iron but I don't see them touching. Still, immeadiate beep when testing for contact.. :| So they should not give any sign of contact with the bridged pad? Their bottom pads do also seem to be in contact…"
Dec 19, 2015
VP Kuisma replied to Dmitry Prokhorov's discussion Solution proposal for PixHawk IMU2-related BAD ACCEL HEALTH
"I did this mod too, but I have not yet powered the board. I have a noob question, are those two big capacitors(?) on top of the solder bridge supposed to be in contact with the bridged pad? (because mine are :) ) Just to be sure do I have a short or…"
Dec 18, 2015
VP Kuisma replied to Randy's discussion Copter-3.3 beta testing
"Not really well. It tilted hard when motor failed. Of course I was kind of expecting the failure so I was flying really low. Couldn't land it on it's feet, always fell. I think if the hex was higher, it would have been possible to take…"
Sep 16, 2015
VP Kuisma replied to Randy's discussion Copter-3.3 beta testing
"update: Motor was missing one magnet! So most likely problem solved. New motor it is."
Sep 11, 2015
VP Kuisma replied to Randy's discussion Copter-3.3 beta testing
"Well, that was pretty accurate analyzis. Got the problem again, but this time better pids and no gimbal, I was able to control the thing and saw clearly that motor 5 was the problem, it almost stopped. Any idea what could cause motor malfunction?…"
Sep 10, 2015
VP Kuisma replied to Martin's discussion Log Bitmask type and calculator ? in the group ArduPlane User Group
"Both web based calcs gives different results... No idea what to trust."
Sep 10, 2015
VP Kuisma replied to Randy's discussion Copter-3.3 beta testing
"May I ask how did you eventually figure it out? Motors twitched or stopped? I have not noticed any of that. Were you able to solve that using logs somehow? Was the problem random or repeatable? I don't get it as it flies nicely on the second…"
Sep 10, 2015
VP Kuisma replied to Randy's discussion Copter-3.3 beta testing
"I mean where I can find correct values for it? Like that 157693. It's not documented anywhere. What does it log? I have used 43006 as mp says that's "nearly all"."
Sep 9, 2015
VP Kuisma replied to Randy's discussion Copter-3.3 beta testing
"I have had now three times roll over / crash problem with the copter. Every time I go to test it, on the first attempt it will crash. I did complete reset for it, but didn't change the behavior. What could cause this? Any ideas? Obviously not…"
Sep 9, 2015

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Control, photography, videos
Hometown:
Imatra

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