BBlaze-SEQ

Arduino Based Midi Sequencer w/ LCD, Nav Buttons, RGB LED Matrix / Keypad

This is my first Arduino Project, but not my first microcontroller project.

Platform:

• SainSmart Arduino Mega 2560 clone

• SainSmart i2c LCD

• MIDI IN / MIDI OUT (6n139)

• MicroChip 24LC256 - 256k RAM

• SparkFun 4x4 RGB LED / Button Matrix - 74hc595 shift registers for LED - 74hc164/165 for button matrix

• Navigation

  • using a digital in module from Midibox.org - but again, just some 74hc595
  • 8 rotary encoder / swithces
  • 5 nav buttons
  • pattern change rotary/encoder

Libraries:

• SainSmart i2c LCD
• ShiftMatrixPWM
• MIDI
• Timer3

Roadmap:

• add save / clear / copy pattern
• allow CC data in the pattern
• PCB Design

ChangeLog:

• v0.9 - Split core .ino file into packages (lcd, keypad, matrix, etc) - working on timing (might remove interrupt) and general cleanup of UI handlers
• v0.8 - Added 24LC256 - working on timing of UI routines - added "record+keyboard" mode
• v0.7 - moved the button handling to an interrupt and added "updateLCD" flag which will update on the next loop()
• v0.6 - switch to i2c LCD and arduino mega 2560
• v0.5 - Replace sequence array that come from Cahors / buttons now toggle notes in the array
• v0.4 - Integrate Keypad w/ a Voltage Divider to A5
• v0.3 - Integrate LED Matrix (shiftPWMMatrix + 75hc595)
• v0.2 - LCD / Menu / Nav Buttons / Simple OS (sainSmart LCD / Keypad)
• v0.1 - basic poc / find libraries