ARF 525 QUAD from quadkopters.com build

Started by VTOLkarthik, December 17, 2014, 09:34:40 PM

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Swapnil

Quote from: VTOLkarthik on February 06, 2015, 09:06:49 PM
I have bad experiences with clones, tats the reason I dint want to...

I had the same thoughts before buying the APM clone too. But, I found out that a lot of people here (and overseas) are using the APM clones without problems. You'll get similar flight characteristics with the clones too. The only drawback is manufacturing quality.

Oh, and do get the telemetry kit as well. That way you can get regular voice updates about battery voltage, heading, altitude etc. You can also control your APM with an android  phone/ tab this way.

VTOLkarthik


sooraj.palakkad

RC Hobbyist and an Aerial Cinematographer..

VTOLkarthik


VTOLkarthik

hi guys!
got apm2.6 at last from a fellow member!
connected to mission planner and following d steps...

Stuck at this step whr it shows d frame selection qnd in d right thr is this list..
which one to select?

akhilzid


VTOLkarthik

I selected quad x4 rtf option and finished calibration...

akhilzid

OK,  that's enough. The option that you asked is for reset all parameters to its defaults.

VTOLkarthik

Ya..  I understood tat..
Nees to see hw it behaves wit my quad..

VTOLkarthik

Hello guys!

the whole build was in a state of hiatus..
now continuing it..
all the calibration and procedures has been followed.. But am not able to arm the APM..
see d snapshot...
While calibrating esc's all d motors spins perfectly but wen I reconnect it doesnt...


akhilzid

Any errors in mission planner regarding prearm check?
If prearm check is enabled then this will not arm without GPS lock

May be rudder is reversed.

Or
For arming need keep throttle down and hold rudder stick to right(normally 2 to 8 seconds ) until led sequence shown
 
Edit : also should need to keep APM in level while arming.

VTOLkarthik

Am not sure about prearm...wen I connect first time, it arms and all d motors spins but after few seconds it turns off.. Wen I reconnect it doesnt arm
rudder is not reverse as well..
APM is in level while arming...

akhilzid

Forgot one thing that the motors will not spin in new apm firmware while throttle is in zero(even if armed but the red led should solid) and need little throttle up to start spin.

VTOLkarthik


akhilzid

After armed the motors will not spin in low throttle. You need to increase throttle to spin motors.

Also can you please post a screenshot of mission planner(flight data page)

VTOLkarthik

I tried increasing d throttle but dint work...

akhilzid

Is the motors outputs connected is in 5,6,7,8? That should be changed to 1,2,3,4

Edit :Sorry its already connected in 1,2,3,4 shown in the previous pic.

akhilzid

Armed? And no motors spinning?
So now check THR_MIN and THR_MAX Parameters.

VTOLkarthik

Is it ok to connect to pc wen the apm is connected via battery...

akhilzid

yes, but always remove props while testing and keep radio on and throttle to min, else had some bad experience while updating parameters (with old firmware) and especially fail-safe,

VTOLkarthik

Ok... I hav similar experience on it... So I do hav a precaution checklist...
Will check it tonight...
is thr anything to be done for simonk esc's in specific?

akhilzid

Quote from: VTOLkarthik on March 17, 2015, 07:54:26 PM
Is it ok to connect to pc wen the apm is connected via battery...
one more situation:
apm will go to esc calibration mode(in this situation apm will not have control and throttle directly control ESC) if you put throttle high and restart apm two times(resetting will occur if you connect to pc), then motors should spin if you give throttle without arming.

Quote from: VTOLkarthik on March 17, 2015, 09:22:23 PM
is thr anything to be done for simonk esc's in specific?
for flying?
nothing other than calibration.

VTOLkarthik


akhilzid

Restarting (Power Cycling) APM,

Means:
Reconnecting Battery or
Reconnecting to PC or
Clicking Reset button on APM

VTOLkarthik