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- 30 Nov 2010
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- 2,316
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- UK
Been using Freerider on the PC with my Taranis, got it to match my 250 perfectly now. Brilliant sim and good value.
Multirotor, multicopter and quadcopter discussion - The Drone thread
- Thread starter RomanNose
- Start date
Been using Freerider on the PC with my Taranis, got it to match my 250 perfectly now. Brilliant sim and good value.
Started looking at drones a couple of days ago. I've never flown one before but interested as a bit of fun and to get me out of the house..
I think building one myself is a bad idea as I'm not much of a DIY person
I have ideas of trying to use one to record my mate while he is on his bike so thinking that having a decent camera is needed. There's things like the DJI Phantom 2 but that's going to be around £800-900 if I buy a GoPro - bit too expensive I think, especially as I don't know if I will enjoy it etc.
The Parrot Bebop for £350 is more like it (the Skycontroller looks cool - but at £630 - not sure if it's worth that extra).
I'm conscious of buying something cheap and it not being very good and if I like it then I need to somehow upgrade (I doubt selling these things is too easy). But also don't want to spend a crazy amount and not enjoy it and then have the difficulty of selling etc.
Anything else I should be looking at? Thoughts?
I think building one myself is a bad idea as I'm not much of a DIY person
I have ideas of trying to use one to record my mate while he is on his bike so thinking that having a decent camera is needed. There's things like the DJI Phantom 2 but that's going to be around £800-900 if I buy a GoPro - bit too expensive I think, especially as I don't know if I will enjoy it etc.
The Parrot Bebop for £350 is more like it (the Skycontroller looks cool - but at £630 - not sure if it's worth that extra).
I'm conscious of buying something cheap and it not being very good and if I like it then I need to somehow upgrade (I doubt selling these things is too easy). But also don't want to spend a crazy amount and not enjoy it and then have the difficulty of selling etc.
Anything else I should be looking at? Thoughts?
Ok seemed to get some of the ocsliation vibes out. Although need to check obc footage. Iv only adjusted P on roll and pitch from 4.0 to 3.8
The integral iv changed roll and pitch from 0.030 I think to 0.040
Iv not changed D yet or anything else as I cant really tell the difference, only way I could tell the difference with P is vibrations or not, I I think it keeps in angle more
I'm having some issues still with camera focus, and I keep getting moments where the video goes black them comes on just before I'm about to take off, my fatshark headset doesn't seem to be holding charge much and my Mobius keeps getting a ref flashing led next to the amber one, the videos don't last long, it's got 16gb card in with space and I charge the battery with a phone charger usb plug and usb cable
The integral iv changed roll and pitch from 0.030 I think to 0.040
Iv not changed D yet or anything else as I cant really tell the difference, only way I could tell the difference with P is vibrations or not, I I think it keeps in angle more
I'm having some issues still with camera focus, and I keep getting moments where the video goes black them comes on just before I'm about to take off, my fatshark headset doesn't seem to be holding charge much and my Mobius keeps getting a ref flashing led next to the amber one, the videos don't last long, it's got 16gb card in with space and I charge the battery with a phone charger usb plug and usb cable
Only adjusted P and I really, I noticed changes on P less oscilation, I is apparently supposed to lock it in to the angles more, but I only adjusted from 0.030 to 0.040
See video below, low quality unfortunatly due to internet connection.
Will upload better one tomorrow.
I think its safe to say 3.8-3.9 maybe the highest I can go with P by the looks? as it starts osclilating over 4. I can still sence a fine bit of ocsilation at 3.8 at Max throttle
Need to figure out how im going to tune the rest. Do people bother tuning Yaw? or just stick to roll and pitch.
Tuning settings as I left it, not moved to Cleanflight atm
Name:.........Proportional........Integral......De rivative
ROLL .............3.8.................0.040.........23
PITCH.............3.8.............0.040......... ....23
YAW.............8.5.............0.045............. 0
ALT.............5.030.............0.000........... ..0
VEL.............12.000.............0.045.......... ...1
Pos.............0.11 .............0.00.............(N/A)
PosR.............2.0 .............0.08.............0.045
NavR.............1.4 .............0.20.............0.080
LEVEL.............9.00.............0.010.......... ...100
MAG.............4.00.............N/A.............N/A
Profile
1
Roll rate (0.00)
Pitch Rate (0.00)
Yaw Rate (0.00)
TPA (0.00)
Im not sure if im being paranoid but everyone elses seems to be much quicker when going forward.
Anyone got there PID's just want to see what sort of settings you guys use. I know it differs between model but would be interesting to see
Can't comment on parrots, they always seemed a bit toyish to me, why not put together something like a replica f450 build (q450) get a Möbius instead of a go pro?
Maybe some else could offer advice
See video below, low quality unfortunatly due to internet connection.
Will upload better one tomorrow.
I think its safe to say 3.8-3.9 maybe the highest I can go with P by the looks? as it starts osclilating over 4. I can still sence a fine bit of ocsilation at 3.8 at Max throttle
Need to figure out how im going to tune the rest. Do people bother tuning Yaw? or just stick to roll and pitch.
Tuning settings as I left it, not moved to Cleanflight atm
Name:.........Proportional........Integral......De rivative
ROLL .............3.8.................0.040.........23
PITCH.............3.8.............0.040......... ....23
YAW.............8.5.............0.045............. 0
ALT.............5.030.............0.000........... ..0
VEL.............12.000.............0.045.......... ...1
Pos.............0.11 .............0.00.............(N/A)
PosR.............2.0 .............0.08.............0.045
NavR.............1.4 .............0.20.............0.080
LEVEL.............9.00.............0.010.......... ...100
MAG.............4.00.............N/A.............N/A
Profile
1
Roll rate (0.00)
Pitch Rate (0.00)
Yaw Rate (0.00)
TPA (0.00)
Im not sure if im being paranoid but everyone elses seems to be much quicker when going forward.
Anyone got there PID's just want to see what sort of settings you guys use. I know it differs between model but would be interesting to see
Started looking at drones a couple of days ago. I've never flown one before but interested as a bit of fun and to get me out of the house..
I think building one myself is a bad idea as I'm not much of a DIY person
I have ideas of trying to use one to record my mate while he is on his bike so thinking that having a decent camera is needed. There's things like the DJI Phantom 2 but that's going to be around £800-900 if I buy a GoPro - bit too expensive I think, especially as I don't know if I will enjoy it etc.
The Parrot Bebop for £350 is more like it (the Skycontroller looks cool - but at £630 - not sure if it's worth that extra).
I'm conscious of buying something cheap and it not being very good and if I like it then I need to somehow upgrade (I doubt selling these things is too easy). But also don't want to spend a crazy amount and not enjoy it and then have the difficulty of selling etc.
Anything else I should be looking at? Thoughts?
Can't comment on parrots, they always seemed a bit toyish to me, why not put together something like a replica f450 build (q450) get a Möbius instead of a go pro?
Maybe some else could offer advice
Last edited:
Soldato
- Joined
- 12 May 2011
- Posts
- 6,300
- Location
- Southampton
Some of you might remember that quite a while ago I crashed a quadcopter into a tree. Well, today my other half and I went for a walk in the same place, and I started peering hopefully around the scrubby bushes like I usually do in case it has fallen out, when she says "isn't that it up there?". Lo and behold, she managed to spot it literally 30 seconds after she first arrived; I must have spent 5 hours there overall looking for the bloody thing.
So here it is!
No idea how to get it down
So here it is!
No idea how to get it down
Soldato
- Joined
- 12 May 2011
- Posts
- 6,300
- Location
- Southampton
I don't know but seeing the footage of the crash would be worth the mission of getting it down!
I'm sitting in mexico at the moment board and rained off so this is all on my phone so be aware I may miss some autocorrects.
Pid tuning certainly is a mine field. Roll and pitch will never be identical, weight distribution and surface area of the props for each axis are rarely perfectly balanced ie: you always have more weight over the pitch axis because the weight distributed along the length of the frame, pids will reflect this. Generally you will be slightly higher on the pitch pids depending on set up it could be a small or large margin.
D is important when tuning that locked in feeling, many people assume it is just for smoothing out the end of a instruction on the input but it interacts at the start of the input also and that has a impact on the end of the input\overshoot.
Tune p on each axis individually first lowering them all to 1.0 below Amy oscillation, tuning together introduces larger margins of error. Once you have p where you input a stick command and the quad responds in a fashion you are happy with in regards to how quickly and sharply it moves but also without it being too fast (remember the highest pods possible are not always the best) then Tyne I so it holds an angle of attack consistently for the conditions you fly. Remember night may not be perfect. Once you do this move to d, you notice d most at the end of flips and rolls, small bounces or corrections at the very end of the maneuver are tuned with d, sometimes more does nothing but exagwrate the issue other times it corrects it, you need to play with this as I have noticed p and I have a impact on the value d imparts on tune.
Do this for all axis and then start again focusing on a finer tune. Eventually all the changes you make on each axis stop having a drastic effect over the tune to each other axis you are making and thus the tune is complete depending how fine you want it.
Pid tuning certainly is a mine field. Roll and pitch will never be identical, weight distribution and surface area of the props for each axis are rarely perfectly balanced ie: you always have more weight over the pitch axis because the weight distributed along the length of the frame, pids will reflect this. Generally you will be slightly higher on the pitch pids depending on set up it could be a small or large margin.
D is important when tuning that locked in feeling, many people assume it is just for smoothing out the end of a instruction on the input but it interacts at the start of the input also and that has a impact on the end of the input\overshoot.
Tune p on each axis individually first lowering them all to 1.0 below Amy oscillation, tuning together introduces larger margins of error. Once you have p where you input a stick command and the quad responds in a fashion you are happy with in regards to how quickly and sharply it moves but also without it being too fast (remember the highest pods possible are not always the best) then Tyne I so it holds an angle of attack consistently for the conditions you fly. Remember night may not be perfect. Once you do this move to d, you notice d most at the end of flips and rolls, small bounces or corrections at the very end of the maneuver are tuned with d, sometimes more does nothing but exagwrate the issue other times it corrects it, you need to play with this as I have noticed p and I have a impact on the value d imparts on tune.
Do this for all axis and then start again focusing on a finer tune. Eventually all the changes you make on each axis stop having a drastic effect over the tune to each other axis you are making and thus the tune is complete depending how fine you want it.
Cheers for everyone's input, going to take a while to get it I think.
At least I'm getting somewhere on my first attempt. Im just having a hard time gauging how it should feel.
I will include yaw on my pid tuning, I think I need to take it a stage a time and view recordings. Watch closely how it performs LOS in the air
At least I'm getting somewhere on my first attempt. Im just having a hard time gauging how it should feel.
I will include yaw on my pid tuning, I think I need to take it a stage a time and view recordings. Watch closely how it performs LOS in the air
two lots of setting below. Both are for cleanflight 1.9.
I'm using the KISS ESC's with oneshot enabled, DYS BE1806 (at least one of which is not happy, you can hear it in the video's), HQ5040 Carbon Fibre mix props and 3s 1500mah 35c Nanotechs.
I'm using the KISS ESC's with oneshot enabled, DYS BE1806 (at least one of which is not happy, you can hear it in the video's), HQ5040 Carbon Fibre mix props and 3s 1500mah 35c Nanotechs.
Code:
CLEANFLIGHT LUXFLOAT CLI DUMP
feature RX_PPM
feature VBAT
feature MOTOR_STOP
feature FAILSAFE
feature TELEMETRY
feature ONESHOT125
set looptime = 1200
set mid_rc = 1500
set min_check = 1010
set max_check = 1900
set min_throttle = 1030
set max_throttle = 1950
set min_command = 990
set align_board_yaw = 270
set pid_at_min_throttle = 1
set pid_controller = 2
set p_pitch = 40
set i_pitch = 30
set d_pitch = 23
set p_roll = 40
set i_roll = 30
set d_roll = 23
set p_yaw = 85
set i_yaw = 45
set d_yaw = 0
set yaw_p_limit = 500
set rc_rate = 90
set rc_expo = 70
set rc_yaw_expo = 0
set thr_mid = 40
set thr_expo = 0
set roll_rate = 60
set pitch_rate = 60
set yaw_rate = 15
set tpa_rate = 60
set tpa_breakpoint = 140
Code:
CLEANFLIGHT Multiwii re-write CLI DUMP
feature RX_PPM
feature VBAT
feature MOTOR_STOP
feature FAILSAFE
feature TELEMETRY
feature ONESHOT125
set looptime = 1200
set mid_rc = 1500
set min_check = 1010
set max_check = 1900
set min_throttle = 1030
set max_throttle = 1950
set min_command = 990
set align_board_yaw = 270
set pid_at_min_throttle = 1
set pid_controller = 1
set p_pitch = 55
set i_pitch = 30
set d_pitch = 30
set p_roll = 40
set i_roll = 20
set d_roll = 30
set p_yaw = 135
set i_yaw = 65
set d_yaw = 1
set yaw_p_limit = 500
set rc_rate = 90
set rc_expo = 65
set rc_yaw_expo = 35
set thr_mid = 50
set thr_expo = 0
set roll_rate = 60
set pitch_rate = 60
set yaw_rate = 85
set tpa_rate = 50
set tpa_breakpoint = 1400Cool. Your D values are what mine are which are default. I will be having another few tuning sessions when I get a chance but wanted to gauge the values to see how much they differ from others
Your p value for pitch near mine. Are these to a decimal place ? Ie 40 is 4.0? Your I values are much different, ie mine 0.040 yours 30 or 3.0?
I'm noticing an improvement already as you can tell by my video but still need to learn how its supposed to be when locked in. When I was adjusting i, I was waiting to get it to lock in to angles, although at one point it started getting wobbly in the wind so backed off I
Your p value for pitch near mine. Are these to a decimal place ? Ie 40 is 4.0? Your I values are much different, ie mine 0.040 yours 30 or 3.0?
I'm noticing an improvement already as you can tell by my video but still need to learn how its supposed to be when locked in. When I was adjusting i, I was waiting to get it to lock in to angles, although at one point it started getting wobbly in the wind so backed off I
