you can use a usb keyboard if you have one common keys should be
A = X
B = Z
Y = A
X = S
Start = ENTER
Select = R-SHIFT
Shoulder left = Q
Sjoulder right = W
D-pad left = left
D-pad right = right
D-pad up = up
D-pad down = down
in emulation station you need to configure the input in the menu screen. When i configured my ps3 controller i had to have a usb controller plugged in first and then after pairing i needed to press start and go to configure input. It should say 2 joy pads detected. I held the A button down on my ps3 controller and it found the controller and then I setup all the buttons. After that I was able to use it.
Necessary and Functional
These cookies are placed to make it possible to analyze this website (with Google Analytics) and optimize for the purpose of a.o. the usability.
Cookie names: _ga, _gat, _gid
These cookies are placed to show advertisements (of Google AdSense) and to get these close to your interest.
Cookie names: id, IDE, FLC, DSID, SNID, NID
These cookies are required to show the cookie notification bar, remember your cookie acceptance choice and apply this choice.
Cookie names: privacy_embeds, wpca_consent, woocommerce_cart_hash, woocommerce_items_in_cart, wp_woocommerce_session_, wp-settings-1, wp-settings-time-1