I though I would share my project with you:
Everything started few months ago due to the frustration of having an awesome AR that is not able to sequence any external gear…I tried to find a good compact and smart midi sequencer but nothing really step up (or too expensive like the cirklon, another elektron…). NAMM 2015 has since revealed lots of good options 
Anyway…that’s why I have decided to make my own step sequencer with an arduino and keep it open source. So that’s the result:
It works great and it is a kind of poor version of an elektron sequencer 
The p-lock system with 3CC is awesome and the option to assign a midi channel to each step extend the possibilities of having only 2 tracks (due to memory limitation).
I can pilot my 2 shruthi and a blofeld with it. For the shruthis I can even sequence their internal sequences and chain them, transpose…
Loop/reverse/randomize are very fun and inspiring.
The song/pattern chain mode is simple and super fast to use.
Next step:
[li]- Add a joystick[/li]
[li]- Add 2 rows of 8x knobs[/li]
[li]- Add more memory[/li]
[li]- Design a nicer/slimer metallic enclosure.[/li]
Spec:
MUSIC PATTERN STEP SEQUENCER
– Arduino based, open source, Elektron type sequencer with E-licktronic modules.
– 8 save/load banks of 8 patterns of 16 steps.
– 2 mutable tracks of up to 8 patterns chain.
– Pattern loop/reverse. Pattern transposition. Random pattern generator.
– Note selection with octave transposition. Note ON/HOLD.Velocity adjustment.
– 1 chord by step (5 chords available included random one)
– 3xCC 1x Prog change by step
– MIDI master/slave.MIDI IN/MIDI OUT.
]- Each track AND step can have their own midi channel.
– 2 lines LCD screen display.Compact ACRYLIC BLACK MATTE ENCLOSURE.
