Hi, So I've just converted my 50g 2S 2inch to a 50g 4S 2inch... and I need help PID tuning it since I've never done....
#2inch 4S PID tuning Help
atomic panther
my current setup:
4S 20A AIO
Gemfan 45mm 3blade props
300-380mah 4S lihv
1003 14800KV motors
I've flown yesterday on the stock 2S pid tune at 70% motor output limit and it flew just fine with the motors keeping cold... so today I increased it to 80% but it caused a Runaway and the drone smashed into a ceiling at full throttle on arm, (drone is fine)
atomic panther
this is what was used on 2S
except ofc the motor output limit
I'll try to the new bardwell's "PID Tuning Masterclass" but any help and tips would be greatly apritiated
low flint
I'll try to the new bardwell's "PID Tuning Masterclass" but any help and tips wo...
you will want to start with filters, get a log of you sweeping the throttle a few times
and 45mm is not 2"
atomic panther
and 45mm is not 2"
1.8inch.... ye
atomic panther
you will want to start with filters, get a log of you sweeping the throttle a fe...
the issue is as soon as it gains altitude it gets into this feedback loop constantly and rapidly increasing throttle
here's a log from that in hand test
low flint
here's a log from that in hand test
you mean you were holding it?
hard to get anything useful from this log but it looks like the pids are wayyy too high
atomic panther
hard to get anything useful from this log but it looks like the pids are wayyy t...
well... I've done some things after that... long story short it doesn't fly away anymore.... but after I got advised to flash from 48khz to 96khz bluejay... and FF slider to 0.... the motors no longer spin up.... even tho the ESC's boot up like normal and all motors are fine.... and it says "armed" in the OSD too
I've decided to learn from the new bardwell's & Brian's PID masterclass.... so I bought PID toolbox and asked for some help on the discord server to get the drone into a flyable working state so I can follow the guide and tune it myself
atomic panther
aaand something smoked (I hope it was a motor.....)... seems like the 96khz firmware doesn't really work...
ok.. now it work...
I'll try to flash 96 again
ok... works now
I did a little line of sight wobble test, and a punch out.... I'll upload the BBL here, but feel free to check it...
low flint
I did a little line of sight wobble test, and a punch out.... I'll upload the BB...
you need to do more that a quick blip, several slower ramps.
atomic panther
you need to do more that a quick blip, several slower ramps.
seems like the quad is at least flying right now so I'll follow along the before mentioned video tomorrow and come back when I'm done so someone can doubble check me... or if I run into any issues
atomic panther
ok.... I've set the pid loop frequency to 4kHz and kept the blackbox logging rate at 2kHz.. and made another wobble test....