[Zubersoft]

From this website https://rolandus.zendesk.com/hc/en-us/ar...TNER-2-APP, they've provided these instructions:

Here are the steps to connect your Roland F-140R digital piano to an Android device:

1. Turn your piano on by pressing the power button.
   
   
2. Press the [Metronome] button and the [Split] button at the same time to enter function mode.
   
   
3. Use the [-] and [+] buttons to select the function setting called "F15", which is "Bluetooth Function". 
   
   
4. Press the [play/stop] button to enter the F15 setting.
   
   
5. Use the [-] and [+] buttons to select "On".
   
   
6. Press the [play/stop] button to return to the function menu.
   
   
7. Use the [-] and [+] buttons to scroll up to function setting "F16", which is "Bluetooth Page Turn/MIDI switching".
   
   
8. Press the [play/stop] button to enter the F16 setting.
   
   
9. Use the [-] and [+] buttons to select "n", which stands for MIDI switching.
   
   
10. Press the [play/stop] button to return to the function menu, and then the [Metronome] and [Split] buttons at the same time to exit out of the function menu fully. 
    
    
11. On your Android device, open up the "bluetooth settings" and turn the bluetooth to "On". 
    
    
12. Open up the Piano Partner 2 app. When the device asks if you can "access the USB device", select "ok". The app should automatically open to its home screen.
    
    
13. Click on the little gear in the upper right hand corner of the app.
    
    
14. Next, click on "Bluetooth MIDI devices"
    
    
15. You should see your "F-140R" device listed here. Click on the device, and proceed to "pair the device".
    
    
16. You should see the app load up with an orange bar, and then say "connected with the F-140R" in the lower left hand screen of the app.
    
    
17. Your F-140R piano is now wirelessly connected to the Piano Partner 2 app via bluetooth, and you can enjoy the touchscreen interface that now controls your piano!*
    

*With android devices, you cannot access the "rhythms feature" of the app when connected via Bluetooth MIDI. To use the rhythm feature of Piano Partner 2 with an Android device, you must connect with a MIDI cable via the "hard-wired" method (see details below). This is a limitation of the Android system.


That seems to imply that it's just MIDI over bluetooth, and I imagine the pedal would send MIDI messages in the same fashion. It looks like you can also just connect MIDI over USB. Have you tried connecting with MIDI over USB to see if the pedal is sending any messages? Have you monitored the outgoing MIDI messages in any other way (such as a MIDI monitor application on your PC with the keyboard connected) to see if messages are generated when the pedal is pressed? If it really does come down to MIDI, then MobileSheetsPro can support it.

Mike