Drone build

[DanyCro]

So, that is a new extra board, new 'floar' which I must add to my Betaglight F4?

Why not a gps, because Betaflight not have SDA and SCL port, or?

If I can add gps, I don't must buy separate gps for founding lost drone, just go in goggles and read LAT and LON.

 

[rtkDarling]

I've never used a GPS unit. Some bind to your phone I know, but zero experience.
Don't even worry about that yet, you need to learn how to fly first! It'll be a month at least before you can fly that quad far enough away from yourself to lose it

 

[rtkDarling]

So, that is a new extra board, new 'floar' which I must add to my Kakute F7?

I don't know what this means. The Kakute comes with a barometer which will tell you altitude.

You'll need to add a unit for GPS, otherwise this board has it all

 

[DanyCro]

I don't know what this means. The Kakute comes with a barometer which will tell you altitude.

You'll need to add a unit for GPS, otherwise this board has it all

I meant that are separate board..
I am confused because in this link

19.3US $ |F4 Flight Control Betaflight F4 Pdb Stm32 Integrated Osd 5v Bec Flight Controller For Reptile Martian Ii 220mm Qav-x 214 Drone - Parts & Accs - AliExpress

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..and which was ordered, I not see 'barometer' options. And in last link you sent me is with barometer options (49$)
But I am not ordered that?

 

[DanyCro]

Will I be able to install this gps to my BetaFlight F4 (16$)?

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[rtkDarling]

Sorry, I don't know anything about GPS.

 

[RENOV8R]

Will I be able to install this gps to my BetaFlight F4 (16$)?

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BN-880 is the 6-wire GPS with a compass, which would only want if you were going for full auto flight with GPS hold, RTH etc. but then we are talking about switching to iNav instead of Betaflight and it's a huge learning curve.

All you need is a simple 4-wire compass that is just connected to tx & rx pads of any spare UART on your flight controller. The Beitian model is BN-220, and most places like GETFPV, RDQ have their own version. I use this one

RDQ Micro M8N GLONASS GPS Module

The RDQ Micro M8N GLONASS GPS Module is perfect for use of 3.3 volts. This is perfect for any Micro and will keep you tracked as you enjoy the skies.

www.racedayquads.com

 

[DanyCro]

I was ordered BN-880. :/

I need GPS to show me LAT i LON.
Want to show me altitude for security reason.
Also good to have RTH options.

I saw i video how to add that gps and open RTH in BetaFlight aplication and it seams easy, do I wrong?

Do I have all ports for that wires connect on betaflight?

Btw I can still cancel Bn-880, it still in processing..

 

[RENOV8R]

Yes the BN-880 will work, you would just not connect the 2 SCA & SCL wires for the magnetometer (compass). But if you can, I would change your order to the BN-220, it will work just as well for you as the 880 and it is MUCH smaller

 

[DanyCro]

Ok thanks
I will try to change.

 

[DanyCro]

Once you hit 7 inches you want a bigger motor than a 22XX. I would be using a 2408 or even a 25XX series motor to swing 7 inch blades.

rtkDarling, motors out of stock! Must buy other.
Pleass give me good motors
Do I looking 1700kv or smoller?
If yes, I found this 24xx:

Egodrift Jetstream Freerange 2407 1500KV Motor

The Jetstream Freerange series 2407 motors feature a stunning ice-blue bell design, open bottom (of course with our screwed hollow shafts) and high-temperature copper wires.

www.getfpv.com

1500kv

121.06US $ |3B HOBBY 2407 Pro 1700KV 2100KV 2400KV 2600KV Racing Brushless Motor CW for Wheelbase 200 220 Frame Kit|Parts & Accessories| - AliExpress

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1700kv

41.98US $ |Racerstar Aira 2508 1200kv 4-6s Brushless Motor For Rc Drone Fpv Racing Multirotors Model Spare Part Diy Accessories - Parts & Accs - AliExpress

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2508 1200kv (from rotorbuilds page you gived me).

Tell me what you think of this.

 

[RENOV8R]

The BrotherHobby 2507 1500 kv are great for a 7" build, I have them on my iFlight XL7

 

[rtkDarling]

I would go for the 1500 as well, that's the lowest KV motor I own, and it's a gentle whisper on 4s. I would hesitate to go lower than that on 4s

 

[DanyCro]

Tnx.
And what about this Garila 1500?
Only found a positive feedbacks..

152.42US $ |4pcs Garila X2507 1500KV 2350KV 2750KV Brushless Motor For RC Modles Toys Frame ESC Blue Red Servo RC Racing Multicopter Part|motor for|brushless motorservo rc - AliExpress

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[DanyCro]

Will be fit on Martian II frame?
There are dimensions of 22xx and 25xx motors, the same is 16mm in middle i see.

 

[rtkDarling]

I was looking at that. I couldn't find the screw pattern info for the frame

 

[DanyCro]

I was looking at that. I couldn't find the screw pattern info for the frame

If 22xx and 25xx motors have same hole distant, and in manual of frame 22xx are recomended, so it must fit 25xx, I think.?
If not I can print a new one or only some extensions for bolts.

 

[DanyCro]

Look! He build 2205 on martian II frame!!
(But my frame will be 295).

 

[DanyCro]

I will order Garila motors.

 

[rtkDarling]

Look! He build 2205 on martian II frame!!
(But my frame will be 295).

Yeah, he's running 5" compared to your 7", it does make quite a difference

.

Take a look at this, he had the same problem, and he outlines some of the problems with seven inch.

He's running a 2806, it's a monster. Also remember that he's running his on 6s compared to your 4s, that's why his KV is so low.