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- # So, you want to turn some buttons on...
- import mido
- from mido import Message
- # We're aiming for some specific values. The hex for turning a light green
- # is pretty simple: 90 <button> <state>. The '90' is the MIDI command
- # for 'note_on'. The 'note_on' command has two values that come after it:
- # the note and it's velocity. Since this is a controller, it uses the note
- # to signify which button to adjust, and it uses velocity to tell it how to
- # light up. Thanks to David Morrill for getting all this information
- # together.
- #
- # The buttons range from 0 to 98.
- # The state is a value from 0 to 6 for the main buttons...
- # 0: off 1: green 2: green_blink
- # 3: red 4: red_blink
- # 5: yellow 6: yellow_blink
- # ...and 0 through 2 for the circular ones.
- # 0: off 1: on 2: blink
- # The shift button is very sad as it has no LED.
- # Also, the Scene Launch buttons don't light up.
- # First, let's open the channel to the APC Mini.
- m_out = mido.open_output(u'APC MINI MIDI 1')
- # Then, let's turn button 3 green (or fourth button on
- # the bottom row).
- msg = Message('note_on', note=3, velocity=1)
- m_out.send(msg)
- # Turn off all of the lights. Also note that I was too
- # lazy to type it out into a proper for loop.
- [m_out.send(Message('note_on', note=i, velocity=0) for i in xrange(0,99))]
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