Hi, I am a newbie, trying to build a first quadcopter for my son to get him interested in science and engineering.
I have a peculiar problem that the quadcopter is not lifting off the ground without flipping.
A video showing the problem is here (See near 0:55 onwards):
For past 1 month I have read tons of forums and seen lots of videos. Here's all that I have tried.
Steps already tried (to the best of my knowledge)1. Reset of KK board 4-5 times after seeing various videos.
2. Changed 3 ESCs on M3 (with new ones). Changed 2 motors on M3 with new ones.
3. Checked all ESCs are connected correctly.
4. Checked all ESC pins on KK board are correct.
5. Motor directions are correct. Motors spin together. Without propellers, they even seem to be running in sync at nearly the same speed visually.
6. Tried to liftoff with higher throttle instead of slower liftoff. Broken a few propellers. It straight runs into side and drops.
7. ACC calibration (all show 512).
8. ESC calibration by various means. This is confusing at times (see more below).
9. I even flipped the board and the direction so that M1 become M3 and M2 became M4. After doing this M1 started to misbehave in exact same way. This lead me to the conclusion that its not the motors or ESC. Its the board.
Technical Specs- FlySky FS16 Transmitter
- KK2.1 Board 2.1.x, FW 1.19S1 Pro Steveis
- A2212, 1200KV motors
- 30A ESCs
- Battery: 2200 mah, 25C RC LIPO
- No external GPS etc.
- All settings are here:
https://www.dropbox.com/sh/kvhrbzyofii8act/AAC7IJzAvY3JUEc3x5iHzHg4a?dl=0ESC CalibrationHonestly this is quite confusing. I tried to do this in two ways:
1. With all ESC pins to board connected, powered the board and kept 1+4 pressed.
2. Pulled out first ESC pin (no power to board) and then after pressing 1+4 pinned that in.
In both of these types I see throttle pass-through. Then I hear the first main beeps when trottle is full. But when I drop the throttle to zero, sometimes I hear a small beep from one of the motors and sometimes not.
I have tried ESC calibration atleast 30 times till now. I still don't know if its correct or not.
I didn't find a clear guide on how to individually calibrate them. Do I plugin ESC-1 wire and then remove others and calibrate?
OthersI have not upgraded the firmware. If I understand correctly this is the latest.
I was also considering buying a OpenPilot CC3D board or something else if this board is so difficult to program.
Requesting if someone can guide me. I am residing in West Delhi. If you live in Delhi I would really like if you can talk to me and help me please.