MidiALF is an 8 step DIY friendly MIDI/CV sequencer with 40×2 LCD, 8+2 clickable rotary encoders, 8 LED switches and 8 tactile switches.
Latest firmware: midialf_094b
8 steps in 4 sub-sequences which could be linked as two 16 step sub-sequences or one 32 step sequence.
Each sequence contains 10 tracks:
Sequence direction: forward, backward, pendulum, random.
Nonlinear sequence progression modes (same as in MIDIBox SEQ v4):
- forward, backward, replay
- interval, repeat, skip
Super stable internal clock based on Mutable Instruments MIDIpal technology, 25-250 BPM.
Two assignable CC LFOs with period of up to 2 bars and sync to start, sequence and step in addition to free running.
Real time and step recording modes: records notes, velocity, legato and CC1/CC2 values.
Sequence and step randomization using 167 music scales (thanks to MIDIbox.org).
Internal storage for 256 programs each containing 4 sequences with setup parameters and 16 character name.
Sysex send/receive of sequence, program or all programs.
Remote control with CC.
Optional CV extension board: adds 4 x CV an 4 x Gate outputs.
Firmware upgradable by SysEx.
Eagle .sch/.brd files and v0.92 firmware .hex files files are available here.
Source code: MidiALF_094b_src
PCB and MCU
You can purchase MidiALF main board directly from me for US$35.00 and pre-programmed ATmega644p MCU for US$15.00. The CV extension board (when available) will be sold for US$30. The prices do not include shipping from California, USA. Currently I can only accept PayPal payments.
Frank Daniels provides standard or customized plexi case with mounting accessories for 65€ plus 8€ shipping from Germany. Email daniels (funnyashapedcharacter) daniels-cards (spotofdirt) de.
MidiALF is built around technology developed by Mutable Instruments: most of its hardware components can be found in various MI’s projects (mostly Shruthi-1 and Ambika), while software implementation uses quite a lot of code from MIDIpal. Not to mention the breakthrough Avril programming framework that brought modern C++ programming (read: productivity and sanity) to Atmel MCU world. Without this MidiALF project would not be possible, so thank you, Olivier, for sharing your talent with all of us!