Implement basic LED PWM
Use MIDI CC #11 for wah values
Implement NOTE ON message handling
Implement simple saw wave
Implement saw down waveform
Implement triangle wave
Implement setting the modulation speed via MIDI CC
Implement low range limitation for the wah effect
Define default values on program initialization
Implement square wave
Cleanup & cosmetics
Implement stair wave
Switch to MIDI CC channel 1 for debug purposes