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Drone won't fly, think it's because of the receiver
#1
Hi everyone,
I finished building my drone about two weeks ago (robocat 270). It has a CC3D flight controller and a FlySky FS-IA6 receiver with a FlySky FS-i6 transmitter. At first, the drone flew well, but then when I armed it and gave it throttle, any motor moved. A few hours later I tried again and it worked, but after 15 seconds at air, mottors stopped and it crashed. Then I had the same problem: The motors didn't spin. I have tried re-setting up my cc3d (using LibrePilot) and nothing happened. I have also tried re-doing the Transmitter Wizard Setup but it still didn't worked. When I connected the cc3d to the PC to see if there was with it. When I turned on the controller, the sign of input was orange, telling it wasn't connected while in the FS-I6 it showed how was it connected. I think it's because the receiver, but I don't know what to do. I'm desperate for help. Thanks.
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#2
HELP PLEASEEEE!!!
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#3
I guess there are not many people using Librepilot here.

This sounds like a hardware problem though. Have you checked the connection between the receiver and the flight controller? Maybe there is a bad connection.

If the connections seem OK, then all you can do is try swapping things. Start with the cable between the receiver and flight controller. Try another receiver, maybe try your receiver on another flight controller.
[-] The following 1 user Likes unseen's post:
  • Oscar
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#4
Thanks for your answer, but how do I check the connection of the receiver and flight controller. Also... what other programs could be installed on a cc3d?
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#5
Double check all your solder joints between Rx and FC. I use a small magnifying glass. Pretty sure Unseen has a microscope! Wink that dude knows his stuff btw Wink solder should look shiny and flow into the joint. Check for dull joints or "blobby" joints. A multimeter can also be used to check connectivity.
If using pin header double check all of those contact points as well.
Wish you the best of luck mate!

EDIT: I used Betaflight for my first build and havent regretted it one bit. This vid is a bit dated but hopefully helps.
The Obsession IS Real!
My Youtube and Instagram links
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#6
You could possibly have some heat issues... so it gets hot, shuts down, and then works again until it gets hot...
Builds: Mini-Quad  -  Tricopter 
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[-] The following 1 user Likes Aaron's post:
  • unseen
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#7
(07-Apr-2017, 03:21 AM)Aaron Wrote: You could possibly have some heat issues... so it gets hot, shuts down, and then works again until it gets hot...

Yeah, this is a fairly typical way for electronics to fail. It works fine while cold but stops working when it heats up. It's normally caused by a poor connection inside the components themselves and the tiny expansion that happens when things heat up is enough to break the connection.
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