Скачать или смотреть Buzzer doesn't work at your 1s tinywhoop?

I have found out that there is no FPV tinywhoop on the market with pre-installed buzzer. Or at least I have not found one.
More than that - some of the all-in-one 1s Flight Controllers even does not have the pins for buzzer installation (buz+ and buz-)

But it is not a problem. The Betaflight is enough flexible and allow you to re-configure any pin to control buzzer (this I will show you later in this video),
But - there is one more problem. The 1s FC operates with 3.5v on controll pins. And even if it has BEC 5v, it still cannot operate 5v buzzer on a random pin after corresponding configuration... And.. it is not a problem too :) In this video I will show you the simple schematics (less then 1 $ cost with 1 transistor BC557 and 1 resistor 2.2 kOhm) that allow you to control 5v buzzer by your 3.5 logic.

buzzer 5v 9x4.2mm https://s.click.aliexpress.com/e/_ok2...

Schematics:
https://oscarliang.com/betaflight-res...

Commands for Betaflight matrix 3in1 to use serial in 2 to controll buzzer
resource SERIAL_RX 2 none
resource BEEPER 1 A03
set beeper_inversion = off

00:00 - No buzzer on 1s drones
01:28 - how buzzer works and how to solder schematics
06:30 - how to confighre buzzer in Betaflight

#fpv #betafpv #fpvbuzzer #tinywhoop