APM 2.5 baro issues from version 3.1RC5 to latest dev

Hello,

i have a small 250 size copter and it flies, except all modes which needs a baro.

Copter oscillates with alt hold +-1 meter and is also not stable with loiter and pos hold.

My Baro is covered with dark foam and alt hold p is tested and decreased from 1 to 0.1 with ch6 althold kP.

I hope that vibrations of the copter are in tolerance, but i saw that my vcc voltage is from 4.7 to 4.5v.

Can this cause oscillations?3691143197?profile=original

Hope someone could help me, to fix my issue.

Regarding weight/size, can i use a mtk3329 instead of an ublox gps?

TIA

Frank

2014-08-11 20-25-06.log

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Replies

  • Hi

    have you try to put firmware 3.0.1 ?

    Ma

  • I tried 3.2RC5 and now i see only in Mission Planner 1.3.7 bad baro health, but not in APM Planner.

    2S lipos has less pulses of motors as 3s .. thr. mid was corrected each setup, also decreased alt p.

    I´m running out of ideas with my miniapm fc.....

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