Hello, I purchased an osd named mini osd from sp4mm3r for apm. I don't have any previous experience with apm or osds. This thing doesn't even have youtube tutorials. I don't even know where to connect ftdi and also have no ideas about what the wires sent are used for. Please help.

Board

Wires

Wires

What do you intend to use this for ?

Apm fpv flying in a Flying wing plane

Try this:

I know how to connect this to apm. What I don't know is how to connect this to the VTx cam and VTx battery and also how to program this ?

Bro this video is for the old minimosd , not the new one. I don't know ftdi

Not sure what you mean by old minim, The process to connect video in and out is pretty much the same for all minim type osd's.
To "program" this you will need to find out what an FTDI is.
Watch the complete video and Im sure it will click.

Bro but there is no pin for connecting ftdi, please look at the pic I uploaded

Your first pic is for FTDI.

Which?

Did you mean the first connector for ftdi?

Yes.

Thanks