in order to use your RKDR II handheld you will need to upload your favorite arcade roms to the device. in order to do this you will need to purchase a powered micro-usb to-usb adapter.
plug the powered usb into the micro usb on the RKDR II device.
optionally connect a network cable to the hub
power on the RKDR II
there are two ways that the adapter can be used to transfer roms to the device
using a usb thumbdrive
using a freshly formatted (fat) usb thumb drive
connect the thumbdrive to your computer
create an empty folder on the thumbdrive named “retropie”
remove the thumbdrive from your computer
insert the thumbdrive into the RKDR II hub
allow the thumbdrive to be acknowledged and processed, this can take several minutes.
when activity has completed, remove the thumbdrive from the RKDR II usb hub
insert the thumbdrive into your pc and navigate to the retropie folder
you should see that an emulator folder structure has been created under the retropie folder.
upload desired roms to their respective emulator folders
when finished, remove the thumbdrive from your PC
next, insert the thumbdrive into the RKDR II usb hub.
allow retropie to automatically transfer the rom files into retropie/emulation staion
once activity has completed, remove the thumbdrive from the RKDR II usb hub
using the buttons on the RKDR, navigate the menu system to see the newly installed ROMS.
connecting directly to the RKDR II over LAN
if your network supports DHCP, then by connecting a lan cable to the usb hub and restarting the RKDR II your device will obtain a local ip address.
use your gateway to determine the ip address which has been assigned to your device.
use the default user account of pi/raspberry to connect and upload rom files to the device.
if you have any further questions uploading roms to the RKDR II system, please feel free to contact me for any assistance!