Sequencer


miniMO's Sequencer is an analog CV step sequencer/arpeggiator with real time tempo control and easy step edition

SOURCE CODE

Download from Github

FEATURES

  • Configurable number of steps
  • Configurable scales
  • Real time Tempo control
  • Step Edition Mode with real time note and length control
  • Random sequence generation on start up
  • Automatic Calibration Mode
  • Automatic Battery check

MANUAL

I/O
  1&2: Outputs - control voltage for frequency
  3: Input - frequency (during calibration)
  4: Output - gate (note ON/OFF)

MODES OF OPERATION
  PLAY (default)
  The sequencer plays through all the steps
    -Knob: change tempo
       -miniMO waits until you reach the value it has currently stored
    -Single click: go to EDIT mode
      -To edit a step, click the button during the PREVIOUS step
    -Triple click: go to frequency calibration mode (see below)
    -The LED turns ON and OFF to mark the steps
  Each time you turn the module OFF and ON, miniMO plays a new random sequence
 
  EDIT
  The sequencer repeats the current step indefinitely at the tempo set in PLAY mode
    -Knob: change note frequency  
      -miniMO waits until you reach the value it has currently stored
    -Single click: go to PLAY mode
    -Double click: change note length
      -Three note lengths are possible: full, half, and silence
    -The LED stays ON continuously
   
  FREQUENCY CALIBRATION (With an OSC Module)
  When you enter this mode, miniMO starts an automatic procedure and calibrates its output to send values that result in the target frequencies defined in the program
    -Before calibration,
      -Connect any output to the input 1 in the OSC module
      -Connect the input 1 to any output in the OSC module
      -Connect the input 2 to the input 2 in the OSC module
      -Move the knob halfway
      -Start the calibration procedure in the OSC module    
    -Click the button two or three times to start the calibration procedure in the sequencer
      -A series of high and low beeps are heard; this calibrates the OSC module
      -A rising pitch is heard; this calibrates the Controller module
    -When the pitch stops rising, calibration is finished
      -Disconnect the cables in input 1
  miniMO automatically saves the calibrated values to memory and recalls them if you turn it OFF and ON again

  BATTERY CHECK
  When you switch the module ON,
    -If the LED blinks once, the battery is OK
    -If the LED blinks fast several times, the battery is running low