How would you solder this board? (usb hack)

[Demon-Seed]

Hello
I got a pc usb stick torn apart, and looking to hack it. There is two pieces, the main board (brown) has 8 buttons and attaches to the joystick then there is addon board with other buttons.  I think I get the larger board, I am only assuming i am right.  The larger solder spots are for each button, I am guessing that all I would have to do is solder two wires to the back of each button?

The smaller board I am not sure.. what to solder too.. (my first try at this usb hack)

If anyone could take a few mins too explain simple hacking and maybe show me on my pics where/what to solder I would appreciate it.  I should let you know that I have successfully hacked my first stick yesterday!! Hacked a flight stick, however after I got it all done there just is not enough buttons (5+joystick).  So I am going to try this.  I guess I could make a simple 3 button panel with the joystick......

I attached photos too... hopefully someone can help me out...

thanks in advance and as always much appreciated!

Jim

[Thenasty]

On the back of the Brown Board PCB with 8 buttons.

[Demon-Seed]

Hey
The Nasty.. thanks that is what I thought for that board.. but the other one?? not so sure.

thanks
Jim

[Thenasty]

For the Adsaptor for extra buttons, you have FIVE wires
One of each if for a Button and the ONE COMMON WIRE will be Ground.
Use a Multimeter and see which is which.

[Demon-Seed]

Hey
HEHE I was thinking that too but was not sure if I should detach the wires from the board..... Umm I am new to this but with the last one when I tested for ground I had two points... what two points would I use>>>>?? obviously the wire.. but the other?

thx
Jim

[Thenasty]

GROUND is GROUND. On PCB, there are usually many GROUND points. You could use any one.

I suggest you use a Multimeter to make sure what you see is what it is.

[Lilwolf]

Which ever wire goes to more then one connection is the ground wire.  All the others are one for a button.  Follow the traces on the board.