Quad RCIN and RCOUT analysis

General
1

Hi,

My Quad consists of:

  • Pixhawk 2.4.8 , GPS, Rx
  • F450 frame
  • 2S LiPo battery with 3000mah , 50c
  • 2212 920KV motor
  • 30A ESCs

I tried to fly it today and push the throttle all the way up and it could take-off but just 20cm from ground. it couldn’t go higher.

I checked the logs for RCIN and RCOUT.

This is RCIN for CH3

RCIN
RCIN1705×1108 14.7 KB

This is RCOUT for CH1-2-3-4

RCOUT
RCOUT1705×1108 17.5 KB

I see that I could the throttle was at maximum (almost 2000) and RCOUT are all max.

does this mean my motors are not strong enough to lift the Quad or the battery is not able to provide more power and I have to use 3S or 4S ?

2

You did not read chapter 1 of the guide. It describes that you should use ecalc multirotor before you buy the parts.

The copter is too heavy

1 Like
3

Can you please share a link?

4

No way will 2S battery power work. If you are using 10" props as is standard with these junk frames you will need 3S and no more than 1kg take-off weight.

2 Likes
5

The link is in the methodic configurator copter guide section 1, that automatically opens when you execute the software.
Or you google for “ecalc multirotor”.

1 Like
6

Hmm
Why Junk frames?

7

Got any of this junk stuff?
Hardware to avoid

8

3s or 4s should help, but its not an ideal setup.

1 Like