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Author Topic: E.T.s F330 Quad...iNAV and GPS  (Read 1673 times)

English Turbines

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E.T.s F330 Quad...iNAV and GPS
« on: September 19, 2018, 08:26:47 PM »

F330 Quad...Loaded with iNAV 2.0 and GPS.






 Having learnt how to fly Mini Quads FPV over the Summer, I decided to dig out the F330 cheapo Quad and try installing iNAV on it.  The last time I tried this, I had some serious problems getting the motors to play ball, with them overheating far too readily.
  This time around, it was a similar story, even though I had loaded a 5 Inch Quad preset, motors got hot enough to fry eggs in a very short time. Luckily, I was expecting problems so was careful not to overheat them and used a 3S while I experimented. Despite playing with the P and D values, the problem persisted. The culprit turned out to be the LPF Filters set far too low, causing the motors to overheat as they were set up for larger props, certainly not 5 inch props.
  With the overheat problem cured, I then tuned the PIDs and set up the rotation rates to that which I am used to. It now flies pretty much exactly how it used to do with Betaflight loaded.
  That just left adding the GPS and Compass, it's an old one and is temporary but I managed to fudge the Mag to get it to point North without error. My cheap F4 board has no Baro, but I will try it using a GPS altitude fix at first.
  Pleased its making progress as it opens up a few possibilities not on offer with Betaflight. This Quad will carry a 4000mah 3S Lipo fairly easily, should fly for a good 15 mins or so.

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« Last Edit: September 19, 2018, 08:46:09 PM by English Turbines »
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ched

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #1 on: September 19, 2018, 08:46:46 PM »

Looks good. That would last about 5mins with my flying  :D way too many things sticking out  :D
How are you getting on with iNav and gps?
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English Turbines

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #2 on: September 19, 2018, 09:10:04 PM »

Looks good. That would last about 5mins with my flying  :D way too many things sticking out  :D
How are you getting on with iNav and gps?

 Hi m8,
              It's not meant for doing flips and rolls and loops...lol...So far Im happy with it because I managed to tune the PIDs and filters and it runs super smooth with stone cold motors, so that means I can fly the damn thing..:)
  When this wind stops howling, Im going to try it. So far it's been limited to garden flying only.
       I also bought the bargain R9M TX Module and micro receiver for 868mhz use. On offer at T9 for a stupid 30.
  It's a war between FrSky and TBS, needless to say, FrSky will win it.  I may try it out in this Quad, although TBH the XM Plus has bucket loads of range on 2.4G.

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #3 on: September 19, 2018, 11:34:50 PM »

I haven't progressed to flips and rolls yet  :D Getting there very slowly. Been trying to get as much time on Velocidrone as I can as weather and work getting in way of actual flight time.
Think I am getting the hang of it, dialed out most of the expo on both pitch and roll with max rate about 1000deg/sec. Yaw on the other hand I have turned the rate down to about 300deg/sec and reduced the expoo down a fair bit. I think I have an issue where I wasn't moving the sticks enough when the expo is on. I may not be any way smooth yet but just trying to position the quad where I want it is my first priority  :D

I watched a few interesting vids on the R9M and I think it was AndyRC saying that hopefully the FW will be updated to allow full power, telemetry and frequencies for EU firmware.
Does sound like a bargain.
Not that I use FrSky just budget FlySky i6 which does me great. I don't fly far away but I can see benefits of strong radio signals when trees and buildings get in the way  :D

Don't forget to post video of first flights  :D
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English Turbines

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #4 on: September 21, 2018, 04:16:49 PM »

I haven't progressed to flips and rolls yet  :D Getting there very slowly. Been trying to get as much time on Velocidrone as I can as weather and work getting in way of actual flight time.
Think I am getting the hang of it, dialed out most of the expo on both pitch and roll with max rate about 1000deg/sec. Yaw on the other hand I have turned the rate down to about 300deg/sec and reduced the expoo down a fair bit. I think I have an issue where I wasn't moving the sticks enough when the expo is on. I may not be any way smooth yet but just trying to position the quad where I want it is my first priority  :D

I watched a few interesting vids on the R9M and I think it was AndyRC saying that hopefully the FW will be updated to allow full power, telemetry and frequencies for EU firmware.
Does sound like a bargain.
Not that I use FrSky just budget FlySky i6 which does me great. I don't fly far away but I can see benefits of strong radio signals when trees and buildings get in the way  :D

Don't forget to post video of first flights  :D


 Update:  I dug out an F4 board with a Baro and swapped it out. It doesn't switch to GPS derived altitude, so the Baro is essential on a Quad.
  Test hovered it and it seems fine after a bit of rate adjusting, Baro, GPS and Compass all appear to be working fine now.
  I just need this Hurricane to sod off so I can try it out.
Tuesday is looking good, 4mph is predicted.

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #5 on: September 21, 2018, 07:17:43 PM »

Sounds good. Very windy here and just started hailing!
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Coyote

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #6 on: November 25, 2018, 10:16:15 PM »

How did this build go then ?
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English Turbines

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #7 on: November 26, 2018, 09:11:44 PM »

How did this build go then ?

  Its going well the last time I flew it....The oportunity to fly it again after adjusting the RTH parameters hasnt arisen.  The compass pointer also seems a bit off compared to a direct GPS heading...Not sure why..
  I have since removed a voltage regulator which was masking the real Lipo voltage and made some hand wound Torroids to control the noise...so at least I now know the pack condition.
  The model actually flies really well, its pretty light for its size....Expensive at 7.50p for the frame....lol.
 
 I think it's time to try iNAV 2.0.1 on it..?

! No longer available


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« Last Edit: November 26, 2018, 09:16:46 PM by English Turbines »
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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #8 on: November 27, 2018, 08:37:34 PM »

I see what you mean about the home arrow, weird.
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English Turbines

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Re: E.T.s F330 Quad...iNAV and GPS
« Reply #9 on: November 28, 2018, 10:55:56 PM »

I see what you mean about the home arrow, weird.

 Yep, not alone in that observation either...When I tried RTH it did some weird stuff just holding position at a wierd roll angle.
  I know abc123 has had success though with 2.0.1 even to the point of letting it land itself after RTH, so it does work.
 My FC is a cheapo one TBH, Im not convinced it has enough memory or speed to handle GPS flying on a Quad.

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