oddson
Well-known member
I've learned that the pitch wheel on many MIDI controllers use a pot with a center tap (fourth pin).
To utilize the pin I'm guessing you would connect the center tap to ground and the alternately source and sink the two ends to read pitch-up and -down positions separately.
This would give you an extra bit of resolution and would avoid having to calibrate a center voltage but uses at least one extra digital pin.
Does this sound right or do commercial controllers have a different (better?) means of using the center tap?
To utilize the pin I'm guessing you would connect the center tap to ground and the alternately source and sink the two ends to read pitch-up and -down positions separately.
This would give you an extra bit of resolution and would avoid having to calibrate a center voltage but uses at least one extra digital pin.
Does this sound right or do commercial controllers have a different (better?) means of using the center tap?