Wanted to build an efficient, quiet, sub250 freestyle quadcopter that uses walksnail. I went with 4" biblades on 1404 3800kv motors, toothpick frame, aio 20a 32bit esc/fc, elrs, and avatar 1s. I'm getting 6-8 min with a 4s 450mah battery. Betaflight 4.4 was an easy tune with just increasing P:D via osd menu and then increasing feadforward till it felt good.
I cap the motor output to 80%. Hover was around 14% which left the low end a little too sensitive for my likinf so i fly with 25% expo and center it around hover. this dramatically helps with throttle control around the hover point.
Here is onboard footage with some lens correction applied. Started to rain so I cut it early, prob had 50% battery remaining.
Frame |
PickleBig(4", 5", 6", 7")
Cncdrones.com
|
$14.00 |
Flight Controller |
Toothpick F405 2-4S AIO Brushless Flight Controller 20A (BLHELI_32) V4
(18 builds)
Betafpv.com
|
$67.99 |
Motors |
4 x T-Motor F1404 3800Kv Micro Motor
(6 builds)
Racedayquads.com
|
$67.56 |
Propellers |
Gemfan 4024-2 4" Hurricane Durable T1.5mm Prop - (4CW+4CCW)
(6 builds)
Rotorvillage.ca
|
$5.49 |
FPV Transmitter |
Walksnail Avatar HD Mini 1S V3 VTX Kit VTX w/ Nano Camera
(13 builds)
Racedayquads.com
|
$108.99 |
Receiver |
Foxeer ELRS 2.4GHz Receiver - T Antenna
Racedayquads.com
|
$15.89 |
Batteries |
Gaoneng GNB 14.8V 4S 450mAh 80C LiPo Micro Battery (Long Type) - XT30
Racedayquads.com
|
$11.99 |
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It's not being powered off of a 5v source, so I assume it isn't running the Avatar 1s vtx?
it is the 1s vtx. im powering it from 5v rail on my fc. no issues so far. (note: ive had issues powering it from 5v on a 1s quad when voltage got below 3.1, but that doesnt seem to be a concern on 3-4s)