This one is probably obvious to you experienced quadsters, but I can't figure out how to power up both the FC and the rx.I know that the FC generally gets it's power from one of the ESCs and the remaining 3 ESCs should have the power wire disconnected. But where does the rx get it's power from?And all the youtube videos seem to skip over this bit.Just to fill you in, this is (obviously) my first quad build. I've just received my Taranis combo this afternoon and it's late, I'm tired and I've had a few, and nothing's making any sense.I've finally got all the parts I forgot in the first 2 orders and I'm ready to finish this sucker and get airborne!I have a choice of using an APM and a KK2.1 FC, and I've decided to stick with the KK2.1 for now, to learn how to fly properly before indulging in the GPS stuff.All suggestions gleefully accepted.Also, wiring suggestions around using a separate ubec - ie; disconnecting ALL the power wires of the ESC BECs (I read about that somewhere. Can't remember the details, but everyone in that thread seemed to think it was the way to go for a multicopter.)Cheers! (Off to bed...)

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  • Thanks for your replies :) (even though it's not my thread)

     

    So, this is how I did it... I cut the middle wire (the positive) on all the ESCs, and bent the wire on one of the sides and taped it with electrical tape so that it does not touch anything... So, only the signal, and negative is going to the board.

    Since I have a Hexacopter, I have the 7'th and 8'th plug free, so I connected a 5V UBEC on the 8'th plug. I tested it, and it powered the board. So it looks like the positive of all the outputs to the ESCs on the main board are connected in parallel, this means that if I did not cut the positive wire of the ESCs, all the ESCs would interfere with eachother as thomas Butler was saying...

     

    For the receiver I used another 5V UBEC, to power it...  and here is my question:  do I need a separate UBEC or can I split the wire of the first UBEC (that powers the main board), and give power to the receiver with one UBEC instead of having 2 of them as I have it now?

  • I would like to know the answers to your questions also !

    I got the parts for my Hexacopter, and, like you, I am having difficulty understanding how to power the main board and the receiver.

    Does the receiver take 5V from a UBEC ? or do I connect it directly to the battery? (I am using a 4S battery, and Turnigy 9X 9Ch Transmitter w/ Module & 8ch Receiver)

     

    Sorry to hijack your thread, but maybe this way we both get our answers :)

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