I wanted MIDI sequencing from the GB to be super stable. My goal is to use the GB as my main sequencer. I had noticed some occasional note dropouts, about 1 note every 30-50 notes was dropped). This is not a big problem at all, but I still wanted to try and make it better.
I moved parts of the note handling from the Arduinoboy to the Raspberry Pi and it reduced the dropped notes to almost 0. The raspberry now handles the sending of note-off messages.
It is probably possible to solve this on the Arduino itself, and I think that would be a better solution.
This is very similar to my setup and I've had this same issue with dropped/wrong notes at about the same rate. I've used two different arduinoboys (a scienceguy and one of Lowtoy's kits) with the latest aboy firmware and LSDJ version - same result. I was able to reduce the rate further by setting my midi instrument to only listen on one channel instead of channel 0 (all channels)
From what I understand it is possible to tweak the latency settings in the arduinoboy maxpat to reduce dropped notes, but in doing so you can increase the risk of a crash/freeze.
In any case, excited to try this out - Thanks Ledfyr. Though honestly I wish there was a solution on the arduinoboy itself that didnt involve adding another tiny hardware box to my setup.
