James Dinh's Discussions (24)

Sort by

Yaw problems in MP radio set up

Hi all,

I'm reposting this discussion hoping to get a response.  I uploaded 2.5.5 after erasing eeprom on APM2, and when I went to the radio calibration screen, the Yaw "bar" value was at 1640 (off center to the right) without any inputs from my TX. W

Read more…

Rc Timer motor for multicopters

Hi all,

Can anyone tell  me what you think about this motor here ? How would it compare to this motor here ?

Which motor will give me the best efficiency?  I'm running 30 amp ESC's with APC 10 X 4.7 Slow Flyer props, a 4S 5000 mAh lipo.

regards,

James

Read more…

lowest safe voltage per cell on lipo

Hi everyone,

I have a 4S 5000mAh battery on my hexacopter.  What is the lowest safe voltage per cell before I risk losing power to my motors.  I want to know in order to set the value on my battery low voltage alarm.  Also is there a way to program th

Read more…

Please help! Board does not turn on.

I have APM 2.  Everything worked great, flying great.  Then, I had a crash.  My fault, not the board.  I crashed into a tree.  Now, the board lights up fine when I plug it in via USB to my computer.  All the LED lights show normal function.  I get GP

Read more…

Please help! Board does not turn on.

I have APM 2.  I had a crash and the board seems fine, when I plug in the USB to my computer, everything lights up and I can access Mission Planner.  Keeping the USB in, if I plug in my lipo, I can arm the motors, and throttle up (motors spin normall

Read more…

Default PID tuning

Can someone please send me a link to the default PID settings for APM2?  I have been tweaking around with PID tuning in Mission Planner and need to know what the original default settings are so that I have a basis (I should have written it down befo

Read more…

The right props?

Can someone please recommend a prop maker and size for my hexa:  880kv motors, 30 amp esc, APM 2, cameral mount and camera: total weight with lipos 2.7kg.  I'm looking for stability and long flight times for aerial photography and FPV.  Also, can you

Read more…

How to view telemetry logs after a crash

I just crashed my copter.  While trying to take off, the copter pitched backwards and yawed right.  I tried to compensate be throttling up and pitching forward, but it did not respond and flipped on its back.  I cut the throttle, but the motors kept

Read more…