I just wrote a sketch for RK002, it’s possible to trigger slices with it too now !
There is a new beta firmware Arduino based, it looks like that :
boolean RK002_onNoteOn(byte channel, byte key, byte velocity)
{
RK002_sendControlChange(channel,17,key);
RK002_sendControlChange(channel,48,key);
RK002_sendNoteOn(channel,84,velocity);
return false;
}