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Old Yesterday, 11:59 AM
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Joined Jun 2005
50 Posts
Question
Brushless Retractable landing gear setup

SO I purhased this kit from aliexpress....

http://www.aliexpress.com/item/22mm-...928788598.html

I have it all setup but cant get it to work. I have the UBEC connected to a 3s battery while the to motor wires enter a y-harness then connect to the UBEC. The signal wire from the y-harness is then connected to my receiver. I can get the gear to make any noises or do anything but my receiver is powered and connected and the UBEC is supplying power. Any suggestions on how to troubleshoot?
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Old Today, 08:04 AM
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United States, CA, Huntington Beach
Joined Jan 2013
1,048 Posts
Quote:
Originally Posted by gofast070 View Post
SO I purhased this kit from aliexpress....

http://www.aliexpress.com/item/22mm-...928788598.html

I have it all setup but cant get it to work. I have the UBEC connected to a 3s battery while the to motor wires enter a y-harness then connect to the UBEC. The signal wire from the y-harness is then connected to my receiver. I can get the gear to make any noises or do anything but my receiver is powered and connected and the UBEC is supplying power. Any suggestions on how to troubleshoot?
The obvious question is have you assigned a switch to the channel that you have the retracts plugged into. I have found with these retracts that you need to cycle the switch at least once when applying power to get them to operate.

Try plugging just one retract in at the time without the legs to see if that helps. It may be that your BEC does not provide enough current. I looked at the ad for the retracts and there was no voltage specified so it's only a guess that it's 3.3 V.

You said you had a 3S battery connected to your you BEC but didn't mention what the output voltage was of the BEC. If it's a variable allowing 3.3 and 5 V I would try this report three first and then the five.

Short of that it may be you got defective units.

Hope that's of some help.
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