Apm 2.6 rtl help

M

Mattlp1980

New Member
Hi all,

Had 2 semi successful test flight with my 450 quad so far.
At first i was getting oscillation issues at random speed mainly when just hovering & thought I solved this with autotune.
My issue now is on rtl, it flies back at height set of 30ft self levels 5 second hover & when decent starts it start to oscillate in small circles & is very difficult to recover before it hits the ground.
I have checked pids but very new to this so am not sure how to tune these best as I hoped autotune may solve the issue.
Grateful for any tips.
 
Hi mate normally P gain is a high speed wag I gain is a low speed tune one axis at a time in non self level mode it does sound like a gyro gain is to high ,how to test say your doing the roll axis , low I to zero Up P till a fast wag starts then back of by 5 or 10 points then adjust I till slow wag starts then back off like the P , now fly do fast snap input on the roll axis the quad should not wobble after input if all is good match the P and I gain all the other axis , Now some do have gains for the self level mode as well so your need to adjust them as well , I think APM has a help site so you can try there if that does not work , Sorry cant help more
 
Im using the apm 2.8, been trying for days to get it set up, seemed to work at first, but couldnt get the motors to arm, noticed on radio calibration the throttle seemed to be backwards, push stick up, green bar went down, push stick down green bar goes up, ive removed the software from my computer and reinstalled several times, even reset the board, now it wont even upload the firmware, wen selecting the comport it doesnt identify as arduino it just says "serial device", im running windows 10, any suggestions?
 
Hi what transmitter do you have some can have the throttle reversed in the transmitter set up so it will match up on the FCB set up screen
 
My transmitter is a Radiolink AT9, i think i worked out the transmitter issues, now im getting "check board voltage" and "bad gps" and "bad compass health" pre-arm errors, even wen it does arm and im able to apply throttle it acts funny, wen i raise the throttle stick it jumps from its idle speed right up to a high throttle with minimal stick, then the rest of the range from there up to 100% doesnt really increase at all, i havent even tried to hook up the osd or the fpv yet, i had it running ealier today but it wouldnt even lift off, ive been trying to reset the board and re upload the firmware, now it locks up during accelerometer calibration, this is so frustrating, i want the autononous functions the board offers but not at the cost of my sanity, lol, might get a new FC and compass/gps system if this keeps up,
 
Update! I removed Mission Planner from my computer, I installed APMplanner 2, seemed super easy to go thru the set up, it was basically the same as Mission Planner, no errors, able to arm the motors, BUT, the throttle still acts funny, stick up just slightly and from idle to what seems like high rev, (what do I know tho, this is first build), and almost no range from just up from idle to 100% throttle, I put props on, hit the stick up and it revved, sounded sweet, I have Cobra Motors 2217/20 950Kv, stick all the way to the top and the thing won't budge, props are on right (1045s), motors spinning correct rotation direction, I'm thinking there is a setting either in the planner or the transmitter, someone out there knows, don't keep it a secret, let a fella in on it, lol, this is a new hobby for me and I'm a quadrotard, please help, any and all advice extremely appreciated
 
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