LibrePilot Forum
Users => Vehicles - MultiRotors => Topic started by: Sator Codex on March 15, 2016, 08:56:53 pm
-
Hi all!
Son (20 years)and I are building first quads together. Being xxxx.. years I was involved in RC, and my son has never done it. I think we are going to have more questions than I can imagine right now. Last time I was involved in electronics. I worked in an avionics repairshop. But again..20 years ago.. LOL
So, I think this is the correct place to get good support. Have looked at painless 360 videos on youtube. Very, very good! But naturally, Im going to have specific thoughts about ouer set up and configuration. My son is not tecnicaly minded. So I build, try, failures. Reworks and hopfully get it right. And he just copies.. :)
Set up so far:
Tarot Robocat 250 frames.
DYS 1804 engines
DYS SN 16A opto ECS
5030 props
Turnigy nano 3s lipos
Revolution Mini FC. One have both GPS and telemetry. The other have GPS (ublox 7 that comes with it)
Also got a pitot kit. But mostly of my qriousity.. Will probably install it ltr..
Son is using Turnigy 9x transmitter and reciver.
I will use Turnigy i10 transmitter and reciver.
Micro minmosd (when it will be delivered..)
Tarot fpv cam and eachine 200w 40ch vtx.
Oh! Ofcoarse we are using Libre Pilot GCS!!
If Ive placed this in the worong form or section. Moderators are free to move to the correct section.
Best regards from Sweden!
-
No problem. Welcome, The experts here write the code and make Libre pilot the success it is. Now that open pilot is gone and the developers and coders are continually upgrading and developing Libre pilot, it's going to be awesome moving forward(not that it isn't now). I'm no expert but I know a little. Ask any questions you have and I'm sure people will help any way they can. Greetings from America
-
Some follow up.
I have installed LP and managed to connect the FC to GCS. All looks good so far.
Now im working out how and where to place all components on the frame.
Have got two BEC. One of these.
https://www.hobbyking.com/hobbyking/store/__77546__HKPilot_Power_Module_with_T_Connectors_and_6_Pin_150mm_Cable_EU_Warehouse_.html
Thinking this is a nice one. Have 5v regulator only. But I think it can connect up to Revo. And submit both voltage and amps to the osd. But, it didnt come with any chematic or pinout information at all..
Also have a basic BEC that regulates both 5v and 12 volts. But since it 9x radio dosent have telemetry. voltage alarm is impossible. Much simpler install though.. Hmm..
Any good suggestions?
Worried abot loosing the quads i high grass or something. I ordered buzzers.
Got these. But they are supposed to sit between servos. dont have any servos.. lol
Think the function (if it works) are good. It will beep when tx signal is lost. Or the reciver voltage drops.
Anyonewho has used these?
https://www.hobbyking.com/hobbyking/store/__31443__Turnigy_Be_Found_Lost_Model_Beeper_EU_Warehouse_.html
-
No problem. Welcome, The experts here write the code and make Libre pilot the success it is. Now that open pilot is gone and the developers and coders are continually upgrading and developing Libre pilot, it's going to be awesome moving forward(not that it isn't now). I'm no expert but I know a little. Ask any questions you have and I'm sure people will help any way they can. Greetings from America
Thank you sir! :)
When I discovered quads and fpv. I got really exited. Almost as a child.. lol
All this new tech is very intresting and inspiring. Hve visited a few rc fields over the years. But never got the spark enough to actually start again.
But this woke my intrest like fireworks going off in the living room!
Cant wait to get airborne. Hopfully at least at testfly this weekend.
Frameis basicly together. Engines and ecs is fitted. Going to install BEC. So I can connect FC and transmitter.
Then I think next step will be basic set up in GCS?
Or is it something more that is good to install first.
Im eager to move forward. But me being me. It has to be done in the best way.
Thats why I try to ask first and once..
Hopefully Iwont have asmoke out.. lol
-
Hehe, looks like another multicopter adict in the making :)
Well, let me mind check:
frame build
PDB installed
FC board installed
ESCs and motors connected.
checked that CW and CCW motors are installed at the correct positions
motor rotation directions checked and corrected
motors connected to FC
receiver connected to FC
Then it should be ready to setup the FC.
Next would be, connect FC through USB and go through vehicle setup wizard. Careful to have all propellers removed, as motors will spin up at some point and can cause injury. Finally, transmitter setup wizard and it should be ready for a first test flight.
-
Yup!
Im hooked! ;D
Im currently trying to figure out the best way to install bec. have 2 variants.
Then I think its time for set up in libre pilot. Was under the impression that
i had to bind and set up (basic) tx and reciver first.
Having read about all pitfalls of setting up FC´s. im bit cautios about that.
For sure I will do it very carefully.
Cant wait to the summer... :)
-
Actually, the i10 receiver should already be bound to the packaged receiver, according to the manual :)
-
Another question. Little more specific..
I have "normal" led strips from RCtimer. Not WS281 type.
So I have maby bought something that wont work as I thought..
Is it possible to connect to revo port that supports led anyway?
There is only two funktions I would like to have.
Led ON/OFF and low batt warning.
I checked the wiki. But only talks about WS type leds.
-
Not sure anyone reads this.
But anyway.
Have done basic setup. generic uavquad profile.
3 out of 4 engines was wired wrong.. And I managed to rewire the one that was spinning correct..
Dont work to late at night.. lol
Have a problem with setting up the flightmode switch. Cant get the atomatick transmitter wizard to work any swith.
Its working in the transmitter. But cant seem to get the FC to find it.
Probably something simple im missing. But, manually setting it dosent work either.
Anyone have ideas of what im missing?
-
Another queston.
Cant seem to find where to change fc direction i the software?
Har to mount it 180. eg backwards.
Somehow i cant fill in the fields where you state lat and long. so one can continue calibration
-
Cant seem to find where to change fc direction i the software?
Har to mount it 180. eg backwards.
It's in the Attitude screen. There're only two items in that screen attitude and level calibration.
The 180 yaw is easy but if you ever need help with other rotations there's a chart in the wiki that tells exactly how to do it.
-
Cant seem to find where to change fc direction i the software?
Har to mount it 180. eg backwards.
It's in the Attitude screen. There're only two items in that screen attitude and level calibration.
The 180 yaw is easy but if you ever need help with other rotations there's a chart in the wiki that tells exactly how to do it.
For some reason it dosent work. Dont want to set homelocation so I can calbrate the other sensors.
Have to check wiki if im missing something
-
I kept having to rotate it save, then check it in the virtual horizon screen the go back and re-calibrate level and save again. If that doesn't do it maybe add a power cycle after the level calibration. I have a board that was rotated 90 and isn't flat in roll or pitch. So it was a little trial and error for me to figure it out so it would stay that way. It's was a combo of changinging its orientation,saving checking it for level and proper movement in GCS then going back and recalibrating its zero and saving again. That's probably the "round about, added steps for no reason" way. But it eventually worked and now if I re run the wizard it takes all of an extra 2min to do. Good luck.
-
TY!
It did help! :)
But, if i do a new calibration and saves. Im back. But at least I know how to get it back...
Having ongoing problems with sensors calibration. I can not manually type my lat/long.
Seems that I have to get it from flightdata tab. But, I can not get a map in to the right
side.. Not installed gps. But it must for sure be able to do this manually??
Getting a bit frustrated..
-
Getting a bit frustrated..
Frustrated? Relax. You wanna see frustrated, this thread is a pretty quick read. Then come back here and try again and see how easy you've got it. :) :) https://forum.librepilot.org/index.php?topic=1094.0
-
Ty for your support! :)
After alot of "fiddeling". I did first flight @ 2.10 am.. lol!
Very stable flight. Only hoover in my garage. But no vibration or wobbeling.
Pleased!!
Still problems with having the compass stable in direction (pointing at true north)
Suddenly after a calibration and reboot. It point at west. Did point correctly to North erlier..
hm..
Anyway, off to bed! :D
-
I don't know anything about any board but the cc3d. I think GPS is needed
-
Still problems with having the compass stable in direction (pointing at true north)
Suddenly after a calibration and reboot. It point at west. Did point correctly to North erlier..
Cross posting is a really bad practice :(
About your compass: if you still use the Basic (Complementary) fusion algorithm the mag is not used at all.
The "North" is taken from the heading when you power board first and there is nothing that can correct drift from Gyros.
-
Still problems with having the compass stable in direction (pointing at true north)
Suddenly after a calibration and reboot. It point at west. Did point correctly to North erlier..
Cross posting is a really bad practice :(
About your compass: if you still use the Basic (Complementary) fusion algorithm the mag is not used at all.
The "North" is taken from the heading when you power board first and there is nothing that can correct drift from Gyros.
Hi!
Ty for the response!
First. Im not sure what you mean about crossposting?
But if I have done something bad. I am sorry! I do not mean to offend anyone.
So If I understand corectly. Magnetometer does nothing withot a gps?
I have gps. But cant get it to work. I have ordered a adapter that is needed to configure the gps.
Since it came with the revo mini. I thought it should be a easy process.
But, Ive learned that setting up a FC is not for the average or faintharted person. :)
-
Today I flew outdoor at the RC clubs airfield.
Worked really well. A few minor crashes, but nothing major. So Its back home in one piece. :)
Conditions were quite windy. Still it performed well. I flew 4 lipo pacs.
One thing I noticed was that its a little unbalanced in how it responds on stick movements.
Yaw is pretty quick. Almost to much. But I think its work well.
Roll and pitch is considerly "slower" to responce. Pitch is almost good enough.
Roll is a bit to slow. Trying to do cordinated turns is really hard. Yaw is to fast. So every
turn gets mor like a yaw turn than a well balanced banking turn.
I realise that i need more stick time. But I do need to chande inputs a bit.
Im not sure what is the best way to make this changes in GCS. PID tuning is not necessary
in my mind. It flyes very well. No strange behaviour. Even in todays windy conditions.
Ill se if I can film next time. Today I was alone on the cold and wet field. Cold fingers and muchie shoes.
But it was really fun!
-
In the advanced section of the stabilization page. Above the PID tuning. A seperate table for its maximum bank angle, degrees per second of rotation, and max degrees per sec rotation. (This table in a more
Simplified version is on the basic tab at the top as well) The max bank angle will allow you to roll and pitch farther if you up the default angle of 55 to say 100. Which will in turn make the stick feel more sensitive since you won't have to move it as far for the same amount of roll or pitch.
It may fly great on stock templates and defaults. But I guarantee you it will fly even better once you start tuning it once your comfortable flying it
Also on the basic tab is a table that is about expo, expo makes the sticks softer and less twitchy right around the middle of the stick. If I remember right one of the default templates has -18 or something yaw expo preset and that makes it very touchy. In the GCS positive expo makes it less sensitive around center stick and negative expo does the opposite. Makes it more sensitive. But change your bank angle on roll and pitch and see if that helps first.
-
Ty for good and exellent support!
I. Working around the clock at the moment. But maby tomorrow I will have a look in libre pilot!
-
Now, finaly i got time to progress. :
Ive changed settings in gcs.
yaw was default 300 deg. sec. in rate. Changed it to 220 deg.sec. rate.
pitch and roll was set to 55 deg. in attitude. Changed to 70deg attitude.
My settings for expo seems to be set to 0 on all axis. Did not chang anything there for now.
One change at a time is good I think. :)
Short test hover in my garage says it is far more responsive. Proper flightest will have to wait. :(
-
So finally I got the parcel with a XXXX Mini revo FC, Op link, OP osd and another OP GPS.
The OSD I really have no clue how to set up. Oplink there looks like a resonable wiki manual in LP.
GPS. I already tryed to install. But failed. Buying a kit one think it would be configurated to work togeter. Obviously not.
Since ther will be no real flying before the weekend. I might give OPlink a go later in the week.
anyone got any helpful tips upfront? Like, whats is the usual misstake ppl do when trying for the first time?
Im sure I will do any possible misstake! ;D
-
With their oplink-air attached what you have is essentially the same as a full size revo. Just follow the standard revo instructions. One warning, once you've attached the oplink-air and configured it the board won't boot up without it attached.
What they're calling an "OP osd" is just the micro version of the minimOSD, the wiki instructions at https://librepilot.atlassian.net/wiki/display/LPDOC/MinOPOSD+setup should work fine for it. Remember as you upgrade versions of GCS you may have to upgrade the firmware in the OSD.
The "OP GPS" should work but because of it's small size and lack of a flash memory it always takes about 15 minutes to get a fix the first time after it's battery runs down overnight. And unlike any other gps I have it flat will not get even a minimal fix inside. Plug it into the revo's port, set that port to GPS/57600/UBX, save the settings, and reboot the controller. It should see it but complain about not having a fix. Put it outside for 15 minutes while powered up and it should get a fix and be fine for the day.
-
I can not get it to recognize the gps at all.
I have a red cross over gps in flight data.
So I hope I have some luck with oplink. :)
-
With their oplink-air attached what you have is essentially the same as a full size revo. Just follow the standard revo instructions. One warning, once you've attached the oplink-air and configured it the board won't boot up without it attached.
What they're calling an "OP osd" is just the micro version of the minimOSD, the wiki instructions at https://librepilot.atlassian.net/wiki/display/LPDOC/MinOPOSD+setup should work fine for it. Remember as you upgrade versions of GCS you may have to upgrade the firmware in the OSD.
The "OP GPS" should work but because of it's small size and lack of a flash memory it always takes about 15 minutes to get a fix the first time after it's battery runs down overnight. And unlike any other gps I have it flat will not get even a minimal fix inside. Plug it into the revo's port, set that port to GPS/57600/UBX, save the settings, and reboot the controller. It should see it but complain about not having a fix. Put it outside for 15 minutes while powered up and it should get a fix and be fine for the day.
Better ask first.. :)
If I later decide Ido not need oplink. Is it a problem to uninstall it and the settings?
-
Ive solved the gps problem!
Spent many houers to try to get it to work erlier.
Tryed tonite again. After I gave up. The brilliant thought came up..
What if one connect a lipo also. Only have had FC powered via usb.
As soon as I connected the battery. I saw autoconfig in system tab started to behave different.
Suddenly it "locked"!
Went outdoors and let it get its first ever fix. Took about 25 min... No speedy gps chip.
Still very happy!
I think a good addition to any manual or istructions. Is a clear added tip. To connect the battery!!!
Also realized. That on this ooold laptop Im using. Needs a new battery. Or another powersource.
Using oplink. Will only work for maby one houer..
anyway.. YEHOO!!! ;D
-
Good to hear it's working!
I didn't think to remind you to hook up the battery to get the gps working. And while I'd like to claim I've never done that, I do the same thing every once in a while.
-
Good to hear it's working!
I didn't think to remind you to hook up the battery to get the gps working. And while I'd like to claim I've never done that, I do the same thing every once in a while.
I dont blame you for that! ;D
I didnt had a sigle thout it was needed when prwered via usb.
Does the same apply to other things you hook up to the fc?
Oplink tomorrows goal!
-
The USB only powers the FC itself, anything plugged in needs the battery as well. The exception since you have a "Revolution Mini" is the oplink-air and it's 8 pin connector, it's powered by the USB because it was part of the FC board in the original revo.
-
Ty for the info hwh!
No progress today. Came home very late from work. I would prefer to do Quad stuff.
I would like to say thank you to everyone who have responded to my thread so far. Very kind to take the time and effort to help a sometimes frustrated newbie.
Every one is a beginner at some point. Hopfully I can contribute to the comunerty in the future.
-
Today we went flying!
Son did his first flights ever on a RC. I did my first attempts FPV.
FPV is the shxxx ;D Its awsome! will take some time to get used to 100% But it beats flying a quad LOS.
Had really fun today! Worth my extra grey hears I got during config. :)
The new settings is much, much better. I think I could up the axis movemts/deg.sec. a bit more.
But will leav it for now. Maby just a toch of expo around center stick. The roll, yaw and pitch feels just more harmonic. Still not happy with coordinated banked turns. But now, thats more about shit behind the sticks ;) (me)
Anyone worried about the tarot robocat is fragily. Do not worry to much. One propper hit in my house wall. Not a scratch. Earlier a cpl of nights ago. I just "had" to fly in my cars garage. One propper hit to the wall..
2 hard "ground arrivals" today. One prop was no more. so propcunsming is now up to 2 total. Maby 12 lipopacs later. So, Nothing is broke yet! :)
I have split feelings abot setting up oplink. First, I think its really cool feature. Makes adjusting and playing on the feald much easier. Still, one can just hook up the usb. But looking at flightcontrols irt. That is so cool. But space is now very limited. Wheight is also starting to build up.
I know I sound as a teen. But Im sertenly having fun as one happy kid! :)
I now have all parts to installing OSD. But I have never used a FTDI adaptor or similar.
But I think thats next step. One reson is that my voltage sensor telemetry on the I10. Is
a bit to much erratic. So it starts to warn for low batt. (set to 10.7V) already when its about 11V.
If one lands and turn off the motors. It shows 11.2 volts. And I have mersured a voltage drop from the Lipo to the sensor. To be 0.5V.
So..I should have plenty of power left.
Bulding a siple voltage divider. Getting voltage displayed on the OSD. would be better I think?
Still, The install and setup of the OSD seems a bit messy.
What do you experts think?
Also, a few pictures from todays activity! :)
-
Hey that does look so smart in built up form.
Only osd I use is just for volts , and wouldn't feel comfortable without.
Each of the cheap osd units I use tend to show volts at about 0.5 below actual , but I just adjust my ought-to-land voltage to suit.
Batteries will pick up their voltage a little when at rest
After hard use.
Hope your Fpv continues to go well.
As ever , I would recommend dal "unbreakable" props.
-
Hey that does look so smart in built up form.
Only osd I use is just for volts , and wouldn't feel comfortable without.
Each of the cheap osd units I use tend to show volts at about 0.5 below actual , but I just adjust my ought-to-land voltage to suit.
Batteries will pick up their voltage a little when at rest
After hard use.
Hope your Fpv continues to go well.
As ever , I would recommend dal "unbreakable" props.
Voltage is a "must" on a osd I think. I might add some more for the fun of it.
One thing I noticed on FPV. Was the difficulty to get the feeling for the actual hight flying.
really low was easy. :) High was no problem. But with not much trees ect as a reference. It was hard to notice variations. So, baro might be good.
Ive bought plenty of diatone and gemfan 5030 props. So we will survive on the propfront for a while.
Intrestinngly ive noticed a few quality differences.
Diatone is really cheap and ok prop. Needs balancing.
Gemfan, I have bought both from HK and BG. Have not flyed them yet. But HK has different packing. seems to be slightly better qality.
Also bought GF with "composite" material. That seems much better in quality. (remindes me of masterairscrew a bit)
Although much more expensive.
DAL I have heard a lot of positive feedback of. Have to order a pair.
Sawsome good rewives of kinkong too..
With big hopes of really good flying weather for the weekend!
Son has started his build!! :)
-
I don't use any OSD at all. I guess if I had a bed cell and I fall from the air or something that's what I would use it for. But I flew line of sight for a while and figured out my flight times on various batteries with a timer and a low voltage alarm. Now I know when the timer starts counting down time to come back and land.but I also run one of thoes cheapo voltage alarms that use the balance lead from battery. About 5:30 on 3s cruising 3:30 hard flying. My 4s birds. 4:30-5:00 cruising. 2:00-2:30 hard flying. Seems every time I land my batteries come back up to storage voltage and all is well.
Play around with using pitch to control your altitude flying around instead of throttle. You'll need both obivously. But when flying forward throttle just makes you go faster. Pitch will adjust your altitude.
Just my two cents: Baro or GPS and the related sensors are wasted on such a small acrobatic racing quad. Light, fast, and durable is The ticket. It's all too heavy to me.
-
As the man says , baro or gps is not really the way forward for getting altitude sorted ( on performance quad )loads of practice probably better.
Myself am very used to 2.1 lens which gives a massive field of view at the cost of depth of field (?).
As you say , without points of reference no one knows where they are !
Ish.
Have tried King Kong 6040 and they are still in one piece long after they are propeller shaped !
Prefer dal. Bit more rigid.
-
Hi.
Maby not the correct forum.
Yesturday, after two months of delivery time. I got the Eachine 007 fpv goggles.
Im posting this because I can not recommend anyone buying it.
Its cheap. But I think only a few actually can use it. It has fixed optics. So if youre eyes dosent match. Its unusable. Also the lcd screen is absolutly crap. Mine arrived broken. I did fix it easily. But buildquality dosent even match the price.
-
Was out to the RC field today.
Really nice evening. Went through my 4 lipo packs one by one.
Did mostly fly FPV by looking on the screen. Today very little "glare LOS"
I have to say it worked ok. Nothing broken. No really hard landing.
Have to say landing FPV is a bit tricky. But getting there. Just need to take the time and
Do the downwind and baseleg carefully. On final approach. I have to slow down really much. I have some problems with throttle control at near ground. Overcompensate and get a bit of jojo effect. :)
Altitude control was better and better today. Still getting cordinated turns (roll/yaw) hickups now and then.
Sometimes I get a bit lost with yaw input. Usally to much. Problems is probably because my fixed wing instinct. Like how I expect it to react to my inputs. Quads defenitly behaves differtly when for example easing the stick inputs in a banking turn. For example when doing a nice clean turn on a fixwing. When you are in a established turn. You ease aileron back to center. Relying on elevator for controlling the turn. On gliders one might have to us a bit rudder to initial the turn.
By instinct I do the same (often anyway)flying my RC quad. But, easing aileron in a trurn. It levels. Still having yaw input and pich forward. I get really suprised some times. Thinking w.t.h did just happen?? LOL
My instant reaction is telling me, this is not right behaviour. But the quad just do what it is told to do.
Anyhow. Im having really fun learning, and getting new flying experinece!
On the build/adding stuff. There is not much news. No time so far. when I have the time. Im gone flying! :)
Cheers!
-
It sounds as though you might benefit from RATE mode. Full manual control. No auto level. That way you have to re center the roll stick in turns like you are used to. Rate mode flying is most pilots goal.
Once your comfortable flying forward like a glider and plane, you find out pitch controls your altitude just like a plane. As long as your flying forward.
-
It sounds as though you might benefit from RATE mode. Full manual control. No auto level. That way you have to re center the roll stick in turns like you are used to. Rate mode flying is most pilots goal.
Once your comfortable flying forward like a glider and plane, you find out pitch controls your altitude just like a plane. As long as your flying forward.
I think you are absolutly right.
About rate. If im going to try rate. (Btw. I did a few weeks ago. I have improved my skills since then. But It was very intresting. Amost ended in a proper crash. ;D)
Im thinking of change one flightmode to Rate. (have rate trainer, but it felt a bit weird)
It should maby be able to change to a slower deg. sec to all axis? One maby could call it gentle rate? ;D
Just to make it fit my skills as they are now?
Bad Idea or not. I think I will try it this weekend. (If the few followers on this thread think it reasonable good idea?)
Only one day left. Then its friday! 8)
-
That's how I learned.... Set defaults from 220 down to like 80 and learned rate....gently. Then as you get comfortable bump the rates higher and higher and maybe add some expo to make it a little easier to control with high rates.