Low voltage buzzer connections

[Treyh267]

Hey guys I have a 250zmr, and a 250qav I had 2 balance connection buzzer alarms that r great but how do I connect my fatshark fpv gear and the buzzer? They both power by the balance leads.. Can I buy something that will give me power to my buzzers? 3s batteries guys... Ty

 

[holtneil]

Treyh sorry cant remember do you have the KK board if yes it has a built in voltage alarm just need the lead from the red power lead to the pos pin on the kk board , Let me know if this the FCB you have and I will send you link to how to wire up

 

[GJH105775]

Are you referring to putting a low voltage alarm on your ground station? If so then can you provide a link to what voltage sensor you are using?

 

[Treyh267]

I was thinking of putting a low voltage alarm on my quadcopter by balance connection... I couldn't connect the fatshark and the buzzer so I decided to buy some balance connector extentions and possibly solder a splitter to power my fatshark and plug into the buzzer

 

[GJH105775]

You could do that if the buzzer was made to do that, or you could pull main power from the battery and plug it into the KK{s voltage alarm. The KK{s voltage alarm is really accurate, and adjustable.

 

[Treyh267]

Sorry I'm lost kk with board. I only have a simple power board is that what u mean.?

 

[holtneil]

Hi Treyh do you have the KK2.1.5 FCB if yes you can use the built in voltage alarm on the KK

 

[GJH105775]

There are two pins on the KK2.1.5 board, they are under a red header by the buzzer. It says power, and is marked + & -

 

[holtneil]

Treyh DONT connect to the neg the KK 2.1.5 only needs a power lead from the pos side of battery to the pos pin on the KK voltage sensor , If you connect the neg as well the KK will burn out , This is why the neg pin is cut short so you cant put a wire on it

 

[holtneil]

Treyh If the pins for the battery sensor are the same length you can use both pins pos and neg, if your is the older Kk2.1.5 and has a shorter neg pin only use the pos pin , sorry for confusion there are older kk2.1.5 about still
So if your looks like this one in the link use both pins
http://www.hobbyking.com/hobbyking/store/uploads/684120529X487876X34.pdf