[Jhinta]

litle confused here 

i have this one

lets are oke ,, but the part of buzzer i dont get .
gcs setup oke , as2 switch activates 1k>2k that oke , 50pwm also good.
but how to connected it , i was thinking output 5 to + buzzer (thats a no go)
output5 to + and gound to ground ( constand buzzing)
any info anyone

[TheOtherCliff]

looks like buzzer has a separate input, so it acts like two separate boards, ws2812b LED board and buzzer board.

I couldn't tell right off what the buzzer input wants.  Probably a TTL on/off or maybe a servo signal that buzzes above 1500us.

[f5soh]

For this buzzer you need a buffered output like here:
https://librepilot.atlassian.net/wiki/display/LPDOC/External+arming+led+for+CC3D

Or similar as the one used in Naze32:

[Jhinta]

Is there a known nano PCB for that ?

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[Jhinta]

Never mind found one, SOT23 SMD to Through-Hole Adapter PCB

, only have to trace cut and add R smd

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