Welcome to DroneRacingPilots!
Join our free drone racing community today!
Sign up

How to put buzzer on this FC?

jlgaustin

Active Member
Joined
Jan 5, 2017
Messages
38
Reaction score
5
Age
49
Got this FC for a micro build, I tried to put a tiny 5v buzzer I used on a couple of other micro quads I have but it doesn't work. Looks like a repurposed UART? Do I have to install the buzzer to BEEP+/- and then do something special in betaflight? Do I have to run power to the 3.3v and GND?

Thanks for any info or anything that can help me figure this out.

Here is the pin outs for the FC notice the BEEP+/-, the documentation says it support external buzzer.
*******
US Warehouse | Eachine FRF3_EVO Brushed Flight Controller Built-in FRSKY Compatible SBUS 8CH Re

If you scroll down you will see the pin outs for the FC.
********
 

PhoenixFord

Well-Known Member
Joined
Dec 5, 2016
Messages
216
Reaction score
57
Age
57
Location
Cabot, AR.
I'm pretty sure that the Buzzer has to be programed within the FC software for how you want it to respond? IE: Inactivity alert, Low voltage alert, RSSI alert.
 

jlgaustin

Active Member
Joined
Jan 5, 2017
Messages
38
Reaction score
5
Age
49
Yea I enabled vbat in betaflight, and even tried putting buzzer in modes on Aux 3 and just turning it on with a switch and nothing. Is there another place I have to program this in the FC maybe?
 

PhoenixFord

Well-Known Member
Joined
Dec 5, 2016
Messages
216
Reaction score
57
Age
57
Location
Cabot, AR.
Well my newb knowledge is dangerous. But did you confirm the switch operation on the calibration screen?
 

PhoenixFord

Well-Known Member
Joined
Dec 5, 2016
Messages
216
Reaction score
57
Age
57
Location
Cabot, AR.
Also, just for kicks and giggles - change the LVC warning to a voltage higher than the batt that you are using?
 

jlgaustin

Active Member
Joined
Jan 5, 2017
Messages
38
Reaction score
5
Age
49
Well my newb knowledge is dangerous. But did you confirm the switch operation on the calibration screen?

Yea.. Thats actually where I tested it. I saved the betaflight settings and power up the quad, when I would flight the switch it did nothing. Removed it all from betaflight and still nota...
 

jlgaustin

Active Member
Joined
Jan 5, 2017
Messages
38
Reaction score
5
Age
49
Also, just for kicks and giggles - change the LVC warning to a voltage higher than the batt that you are using?

I will give that a shot and see what happens. But I tried to just setup the beeper option in modes as well and nothing when I flipped the switch.

Thanks for all the replies and help though, much appreciated.
 

PhoenixFord

Well-Known Member
Joined
Dec 5, 2016
Messages
216
Reaction score
57
Age
57
Location
Cabot, AR.
Thanks for all the replies and help though, much appreciated.

Sorry I've reached the end of my ignorance. Hope you get it figured out. Someone else may come along shortly.
 

Latest threads

Members online

No members online now.

Forum statistics

Threads
3,512
Messages
29,963
Members
2,954
Latest member
ABSURDFPV