soldered a header onto my MF but not working right.

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soldered a header onto my MF but not working right.
Posted on: 04.06.2010 by Claris Krausz
hi, Is the knob function working yet with latest firm ware update.

I've soldered on a header block into place and wired up some knobs and buttons but the all it seems to do is continually sends messages to the software not allowing me to set different actions to different the knobs etc.

I was wondering if this function is a firmware issue. My soldering looks good to me so I don't believe its that's the issue ( but it could be)

any help Guys???
Claris Krausz
04.06.2010
hi, Is the knob function working yet with latest firm ware update.

I've soldered on a header block into place and wired up some knobs and buttons but the all it seems to do is continually sends messages to the software not allowing me to set different actions to different the knobs etc.

I was wondering if this function is a firmware issue. My soldering looks good to me so I don't believe its that's the issue ( but it could be)

any help Guys???
robert chanda
04.06.2010
The issue may be that the switches on the digital inputs need to be wired with a "pull up" resistor:

Code:
   +----------o  +5v
   |
  [ ]
  [ ]   1k ohm  (value not that important)
  [ ]                  (one for each digital input)
   |
   +----------o  digital in
   |
    \   switch
     \
   |
   +----------o   gnd
The next version of the firmware enables an internal circuit in the chip which removes the need for these pull-up resistors, so you just connect the digital input to ground through a switch. Lots of new features coming up!

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