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use gepRC super buzzer without FC

Ekaterina

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gepRC super buzzer originally uses with a FC and connect buzzer, ground, +5v. In this time, I want to use this buzzer to an aircraft which does not have FC output. Therefore, I am trying to put a separate battery. So far, results are;

1 buzzer makes a sound one time when connecting the battery or when pushing a button.
2 The separate battery is 3.7v , and charged to SUper buzzer for 10min, and the super buzzer's battery (3.7v ?!) is already inflated.
3 Maybe yellow line (buzz-) is the key to use somehow without FC input.

Ideally, after connecting the separate battery, buzzer starts making constant sound during flight. If aircraft crashes and disconnect the separate battery, the super buzzer still keep making sound with own tiny battery. Is that possible to use that way?
 

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